dolby.com

dolby.com is SSL secured

Free website and domain report on dolby.com

Last Updated: 29th September, 2021 Update Now
Overview

Snoop Summary for dolby.com

This is a free and comprehensive report about dolby.com. Dolby.com is hosted in Västerås, Västmanland in Sweden on a server with an IP address of 217.114.85.70, where the local currency is SEK and Swedish is the local language. Dolby.com is expected to earn an estimated $20 USD per day from advertising revenue. The sale of dolby.com would possibly be worth $14,617 USD. This figure is based on the daily revenue potential of the website over a 24 month period. Dolby.com receives an estimated 7,021 unique visitors every day - a huge amount of traffic! This report was last updated 29th September, 2021.

About dolby.com

Site Preview: dolby.com dolby.com
Title: Dolby Laboratories Inc.
Description: Dolby creates audio, visual, and voice technologies for movies, TV, music, and gaming. Experience it all in the immersive sound and stunning picture of Dolby Atmos and Dolby Vision.
Keywords and Tags: business, popular
Related Terms: dolby, immersive, laboratories, stunning
Fav Icon:
Age: Over 32 years old
Domain Created: 20th November, 1991
Domain Updated: 18th October, 2019
Domain Expires: 18th November, 2021
Review

Snoop Score

3/5 (Great!)

Valuation

$14,617 USD
Note: All valuation figures are estimates.

Popularity

High
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 59,666
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 7,021
Monthly Visitors: 213,698
Yearly Visitors: 2,562,670
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $20 USD
Monthly Revenue: $609 USD
Yearly Revenue: $7,304 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: dolby.com 9
Domain Name: dolby 5
Extension (TLD): com 3
Expiry Check:

Page Speed Analysis

Average Load Time: 1.06 seconds
Load Time Comparison: Faster than 76% of sites

PageSpeed Insights

Avg. (All Categories) 80
Performance 66
Accessibility 96
Best Practices 80
SEO 92
Progressive Web App 64
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.dolby.com/
Updated: 29th September, 2021

2.66 seconds
First Contentful Paint (FCP)
56%
24%
20%

0.00 seconds
First Input Delay (FID)
99%
0%
1%

Simulate loading on desktop
66

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for dolby.com. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Total Blocking Time — 140 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0.002
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Opportunities

Properly size images
Images can slow down the page's load time. Dolby.com should consider serving more appropriate-sized images.
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Dolby.com should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Dolby.com should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Dolby.com should consider minifying JS files.
Reduce unused CSS — Potential savings of 65 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Dolby.com should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.dolby.com/Static/Core/Css/main.min.css?v=5.5.0.241
54671
52494
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} ...
16862
13991
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Serve images in next-gen formats
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Dolby.com should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 68 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://connect.facebook.net/signals/config/4688141327926537?v=2.9.47&r=stable
15684
https://connect.facebook.net/signals/config/5302515973095691?v=2.9.47&r=stable
15684
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
15684
https://connect.facebook.net/signals/config/121318489681862?v=2.9.47&r=stable
15683
https://cdn.cookielaw.org/scripttemplates/6.21.0/otBannerSdk.js
6598
https://www.dolby.com/Static/Core/Js/main.min.js?v=5.5.0.241
514
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
54
https://connect.facebook.net/en_US/fbevents.js
45
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.

Diagnostics

Avoids an excessive DOM size — 761 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
761
Maximum DOM Depth
20
Maximum Child Elements
27
Avoid chaining critical requests — 7 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Dolby.com should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 1.2 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
1057.136
558.335
10.604
https://script.hotjar.com/modules.e95f6e2deb67f1b24d8e.js
348.548
340.253
3.222
Unattributable
235.422
30.267
0.132
https://www.dolby.com/
216.377
19.617
2.237
https://cdn.cookielaw.org/scripttemplates/6.21.0/otBannerSdk.js
114.686
80.11
7.544
https://www.googletagmanager.com/gtm.js?id=GTM-KFCNV58
82.817
73.289
5.255
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
80.699
69.676
7.858
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 90 requests • 7,754 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
90
7940411
Media
1
6071740
Script
31
1499147
Font
2
134504
Image
27
79120
Stylesheet
5
72041
Other
20
57264
Document
4
26595
Third-party
61
1174789
Minimize third-party usage — Third-party code blocked the main thread for 20 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
68536
14.468
624831
1.114
130379
0.82
138159
0
71689
0
47527
0
23432
0
23213
0
21890
0
6913
0
4697
0
3245
0
2637
0
1948
0
1167
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Avoid large layout shifts — 2 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.001585500394011
6.3041765169425E-6
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 4 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://dl.episerver.net/13.4.4.1/epi-util/find.js
1690
164
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
2916
67
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
3182
64
https://cdn.cookielaw.org/scripttemplates/6.21.0/otBannerSdk.js
2983
56
Avoid non-composited animations — 6 animated elements found
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Element Name
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of dolby.com on mobile screens.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Other

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://dolby.com/
http/1.1
0
224.37300000456
180
0
301
text/plain
http://www.dolby.com/
http/1.1
224.81899999548
465.96899999713
494
0
301
text/html
https://www.dolby.com/
h2
466.46100000362
1130.8029999927
22850
125807
200
text/html
Document
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/EPiServerFormsSamples.css
h2
1140.7389999949
1302.767000001
841
566
200
text/css
Stylesheet
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/jquery-ui.min.css
h2
1140.8689999953
1226.6899999959
8163
30169
200
text/css
Stylesheet
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/jquery-ui.structure.min.css
h2
1140.9739999945
1228.317999994
5369
14773
200
text/css
Stylesheet
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/jquery-ui.theme.min.css
h2
1141.2520000013
1284.0909999941
2997
13872
200
text/css
Stylesheet
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
h2
1142.3479999939
1167.6650000009
7309
18980
200
application/javascript
Script
https://www.dolby.com/Static/Core/Js/vendors~critical~main.min.js?v=5.5.0.241
h2
1142.5049999962
1277.4019999924
49903
150387
200
application/x-javascript
Script
https://www.dolby.com/Static/Core/Js/main.min.js?v=5.5.0.241
h2
1142.7289999992
1291.0709999996
88070
424792
200
application/x-javascript
Script
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
h2
1379.3839999998
1496.0739999951
227753
707130
200
application/x-javascript
Script
https://www.dolby.com/WebResource.axd?d=_EqhT6U9PGScn2ft2d9UChq4H_2oLKQSyfcaZUIfz7vlL3__WpmC_JzyZALPDciXZ1A7q9foDT0opm5UO3Jet0H12Y12IG_uyUm_5yYQQ0wO2XgpeZA-RiHsVDQQXCtfvXhMlkRt1ABJNY3OvPOTacRuo_Hcbr8VOAtWArv4IgN77f5abOCeuzlX2DXXK-HIZIjgB-hCDn00SlxsM6C0vrNYErgCSWvMIYNQ7vvaxCY1&t=637680272800000000
h2
1143.127000003
1518.1659999944
1684
3412
200
application/x-javascript
Script
https://www.dolby.com/Static/Core/Css/main.min.css?v=5.5.0.241
h2
1525.5270000052
1586.8199999968
54671
410510
200
text/css
Stylesheet
https://www.dolby.com/Static/Core/Images/external-link.svg
h2
1520.7159999991
1556.9370000012
793
241
200
image/svg+xml
Image
https://www.dolby.com/globalassets/social-media-sharing-icons/facebook.svg
h2
1524.728000004
1566.3749999949
1020
696
200
image/svg+xml
Image
https://www.dolby.com/globalassets/footer-icons/twitter.svg
h2
1524.8739999952
1574.3599999987
1103
869
200
image/svg+xml
Image
https://www.dolby.com/globalassets/footer-icons/linkedin.svg
h2
1524.9539999932
1649.3069999997
1077
795
200
image/svg+xml
Image
https://www.dolby.com/globalassets/footer-icons/youtube.svg
h2
1525.0309999974
1574.695000003
1049
784
200
image/svg+xml
Image
https://www.dolby.com/globalassets/footer-icons/instagram.svg
h2
1525.1019999996
1629.7880000056
1366
1611
200
image/svg+xml
Image
https://www.dolby.com/globalassets/footer-icons/vimeo.svg
h2
1525.1739999949
1670.4069999978
1143
932
200
image/svg+xml
Image
https://dl.episerver.net/13.4.4.1/epi-util/find.js
h2
1314.8859999928
1377.422000005
3245
5993
200
application/javascript
Script
https://www.google.com/recaptcha/api.js
h2
1525.278000001
1549.7230000037
1174
850
200
text/javascript
Script
https://cdn.cookielaw.org/consent/4ef5a5b0-4506-463f-873c-cf5000dcf6c6/4ef5a5b0-4506-463f-873c-cf5000dcf6c6.json
h2
1174.583999993
1217.8449999919
2969
4785
200
application/x-javascript
XHR
https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location
h2
1525.3530000045
1560.461999994
521
185
200
text/javascript
Script
https://www.googletagmanager.com/gtm.js?id=GTM-KFCNV58
h2
1525.4350000032
1578.0740000046
71689
206656
200
application/javascript
Script
https://www.dolby.com/Static/Core/Fonts/AvenirNextLTPro-Medium.woff
h2
1534.5720000041
1580.317999993
40418
39796
200
font/woff
Font
https://az416426.vo.msecnd.net/scripts/a/ai.0.js
h2
1539.3639999966
1554.7890000016
23213
96705
200
application/x-javascript
Script
https://www.dolby.com/Static/Core/Js/sticky-nav.min.js?v=1632429501
h2
1745.7649999997
1795.3100000013
4805
14145
200
application/x-javascript
Script
https://www.dolby.com/Static/Core/Fonts/AvenirNext-DemiBold.woff
h2
1796.5229999973
1849.9429999938
94086
93464
200
font/woff
Font
https://www.dolby.com/Static/Core/Js/vendors~vue-toasted.min.js?v=1632429501
h2
1860.2419999952
1896.7949999933
20407
57424
200
application/x-javascript
Script
https://www.dolby.com/en/api/contentrecommendationsapi/deliveryResults?contentId=11309
h2
1865.1569999929
2212.5240000023
798
811
200
application/json
XHR
https://www.dolby.com/globalassets/mock-up/the-weeknd/16x9-web-opt-1.jpg?width=1024&mode=min
h2
1938.1880000001
1981.0810000054
47760
46922
200
image/webp
Image
https://www.gstatic.com/recaptcha/releases/-TriQeni1Ls-Mdq_ssN2cUL5/recaptcha__en.js
h2
1961.4429999929
1976.456000004
138159
351026
200
text/javascript
Script
https://cdn.cookielaw.org/scripttemplates/6.21.0/otBannerSdk.js
h2
1970.1729999942
2007.4170000007
76828
318440
200
application/javascript
Script
https://8782803.fls.doubleclick.net/activityi;src=8782803;type=dolby0;cat=dolby0;ord=9152216686222;gtm=2wg9r0;auiddc=1755088874.1632924347;ps=1;~oref=https%3A%2F%2Fwww.dolby.com%2F?
http/1.1
2076.9100000034
2094.1449999955
1073
0
302
text/html
https://8782803.fls.doubleclick.net/activityi;dc_pre=CPjoqJ2tpPMCFR73hwodveoGhA;src=8782803;type=dolby0;cat=dolby0;ord=9152216686222;gtm=2wg9r0;auiddc=1755088874.1632924347;ps=1;~oref=https%3A%2F%2Fwww.dolby.com%2F?
h2
2096.8310000026
2121.3449999923
1307
483
200
text/html
Document
https://www.google-analytics.com/analytics.js
h2
2079.0589999961
2083.3609999972
20399
49529
200
text/javascript
Script
https://static.hotjar.com/c/hotjar-869378.js?sv=7
h2
2083.0469999928
2117.4529999989
5685
47816
200
application/javascript
Script
https://static.ads-twitter.com/uwt.js
h2
2084.9190000008
2099.2609999957
5943
14407
200
application/javascript
Script
https://www.googleadservices.com/pagead/conversion_async.js
h2
2086.7980000039
2097.0729999972
14975
37531
200
text/javascript
Script
https://s.idio.co/ia.js
h2
2089.3760000035
2159.1219999973
1709
2176
200
application/javascript
Script
https://www.youtube.com/iframe_api
h2
2090.022000004
2113.3120000013
1938
980
200
text/javascript
Script
https://connect.facebook.net/en_US/fbevents.js
h2
2090.8190000046
2107.3800000013
27400
100837
200
application/x-javascript
Script
https://snap.licdn.com/li.lms-analytics/insight.min.js
http/1.1
2091.8609999935
2213.3089999988
2350
4684
200
application/x-javascript
Script
https://8782803.fls.doubleclick.net/activityi;register_conversion=1;src=8782803;type=dolby0;cat=dolby0;ord=9152216686222;gtm=2wg9r0;auiddc=1755088874.1632924347;ps=1;~oref=https%3A%2F%2Fwww.dolby.com%2F?
h2
2094.9169999949
2109.1820000001
851
0
200
text/html
Image
https://cdn.cookielaw.org/consent/4ef5a5b0-4506-463f-873c-cf5000dcf6c6/6e2765cb-7ff7-476d-b7b0-27112f1876e3/en.json
h2
2172.6070000004
2208.2539999974
21186
98103
200
application/x-javascript
Fetch
https://www.google-analytics.com/plugins/ua/linkid.js
h2
2234.5150000037
2238.1509999977
2394
1569
200
text/javascript
Script
https://googleads.g.doubleclick.net/pagead/viewthroughconversion/786152507/?random=1632924347440&cv=9&fst=1632924347440&num=1&guid=ON&resp=GooglemKTybQhCsO&eid=376635470&u_h=600&u_w=800&u_ah=600&u_aw=800&u_cd=24&u_his=2&u_tz=-420&u_java=false&u_nplug=0&u_nmime=0&gtm=2wg9r0&sendb=1&ig=1&frm=0&url=https%3A%2F%2Fwww.dolby.com%2F&tiba=Sound%2C%20Visual%2C%20%26%20Display%20Technology%20-%20Dolby&hn=www.googleadservices.com&async=1&rfmt=3&fmt=4
h2
2251.2719999941
2274.5379999978
2132
1702
200
text/javascript
Script
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
h2
2260.7609999977
2377.8849999944
148116
501413
200
application/x-javascript
Script
https://script.hotjar.com/modules.e95f6e2deb67f1b24d8e.js
h2
2263.3510000014
2288.8390000007
60452
226752
200
application/javascript
Script
https://www.youtube.com/s/player/d82ca80e/www-widgetapi.vflset/www-widgetapi.js
h2
2264.7710000019
2271.9159999979
45589
137928
200
text/javascript
Script
https://analytics.twitter.com/i/adsct?type=javascript&version=2.0.4&p_id=Twitter&p_user_id=0&txn_id=nvhww&events=%5B%5B%22pageview%22%2Cnull%5D%5D&tw_sale_amount=0&tw_order_quantity=0&tw_iframe_status=0&event_id=b63caa31-b580-4c28-b585-bd35b3e10ac1&tw_document_href=https%3A%2F%2Fwww.dolby.com%2F&tpx_cb=twttr.conversion.loadPixels
h2
2274.762999994
2388.6469999998
970
31
200
application/javascript
Script
https://t.co/i/adsct?type=javascript&version=2.0.4&p_id=Twitter&p_user_id=0&txn_id=nvhww&events=%5B%5B%22pageview%22%2Cnull%5D%5D&tw_sale_amount=0&tw_order_quantity=0&tw_iframe_status=0&event_id=b63caa31-b580-4c28-b585-bd35b3e10ac1&tw_document_href=https%3A%2F%2Fwww.dolby.com%2F
h2
2275.2719999989
2313.3159999998
695
43
200
image/gif
Image
https://a.idio.co/ia.gif?r=&s=11c08384-f000-4f50-bcba-5f4f7179e3aa&x%5Bidio_visitor_id%5D%5B0%5D=dc6d1a17-4f90-43cd-a07c-9414b376997a&c=dolbylabs&d=2579&a=consume&u=https%3A%2F%2Fwww.dolby.com%2F&l=1632924347475&z=0.02619550777222157
http/1.1
2282.1419999964
2411.9030000002
239
26
200
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5064.898
8.704
5187.015
5.115
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Metrics

First Contentful Paint — 1.0 s
The time taken for the first image or text on the page to be rendered.
Time to Interactive — 3.1 s
The time taken for the page to become fully interactive.

Other

Max Potential First Input Delay — 160 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 1.2 s
The time taken for the primary content of the page to be rendered.

Opportunities

Eliminate render-blocking resources — Potential savings of 280 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Dolby.com should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
7309
230
https://www.dolby.com/Static/Core/Js/vendors~critical~main.min.js?v=5.5.0.241
49903
80
https://www.dolby.com/Static/Core/Js/main.min.js?v=5.5.0.241
88070
160
Avoid multiple page redirects — Potential savings of 380 ms
Redirects can cause additional delays before the page can begin loading. Dolby.com should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://dolby.com/
190
http://www.dolby.com/
190
https://www.dolby.com/
0

Diagnostics

Minimize main-thread work — 2.4 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
1357.035
Other
378.687
Rendering
295.548
Style & Layout
214.747
Script Parsing & Compilation
92.004
Garbage Collection
53.539
Parse HTML & CSS
49.501

Metrics

Speed Index — 3.5 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 3.7 s
The timing of the largest text or image that is painted.

Opportunities

Reduce unused JavaScript — Potential savings of 956 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
227753
163111
https://connect.facebook.net/signals/config/4688141327926537?v=2.9.47&r=stable
148118
142056
https://connect.facebook.net/signals/config/5302515973095691?v=2.9.47&r=stable
148116
142054
https://connect.facebook.net/signals/config/121318489681862?v=2.9.47&r=stable
148101
142046
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
148116
105669
https://www.gstatic.com/recaptcha/releases/-TriQeni1Ls-Mdq_ssN2cUL5/recaptcha__en.js
138159
101224
https://www.dolby.com/Static/Core/Js/main.min.js?v=5.5.0.241
88070
54543
https://cdn.cookielaw.org/scripttemplates/6.21.0/otBannerSdk.js
76828
37994
https://www.youtube.com/s/player/d82ca80e/www-widgetapi.vflset/www-widgetapi.js
45589
37520
https://script.hotjar.com/modules.e95f6e2deb67f1b24d8e.js
60452
28249
https://www.googletagmanager.com/gtm.js?id=GTM-KFCNV58
71689
24905
Reduce initial server response time — Root document took 670 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.dolby.com/
665.336

Diagnostics

Avoid enormous network payloads — Total size was 7,754 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://download.dolby.com/music/atmos-music/JustinBieber_AmbientHeader_v01_SDR_1024x576_2398_H264.mp4
6071740
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
227753
https://connect.facebook.net/signals/config/4688141327926537?v=2.9.47&r=stable
148118
https://connect.facebook.net/signals/config/5302515973095691?v=2.9.47&r=stable
148116
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
148116
https://connect.facebook.net/signals/config/121318489681862?v=2.9.47&r=stable
148101
https://www.gstatic.com/recaptcha/releases/-TriQeni1Ls-Mdq_ssN2cUL5/recaptcha__en.js
138159
https://www.dolby.com/Static/Core/Fonts/AvenirNext-DemiBold.woff
94086
https://www.dolby.com/Static/Core/Js/main.min.js?v=5.5.0.241
88070
https://cdn.cookielaw.org/scripttemplates/6.21.0/otBannerSdk.js
76828
Serve static assets with an efficient cache policy — 28 resources found
Dolby.com can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://download.dolby.com/music/atmos-music/JustinBieber_AmbientHeader_v01_SDR_1024x576_2398_H264.mp4
0
6071740
https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location
0
521
https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=d76e02e0-af68-457f-9b1f-684bcbf84103&_expected_cookie=ed8aee2cc325dba4961f5257c8318ad9
0
499
https://a.idio.co/ia.gif?r=&s=11c08384-f000-4f50-bcba-5f4f7179e3aa&x%5Bidio_visitor_id%5D%5B0%5D=dc6d1a17-4f90-43cd-a07c-9414b376997a&c=dolbylabs&d=2579&a=consume&u=https%3A%2F%2Fwww.dolby.com%2F&l=1632924347475&z=0.02619550777222157
0
239
https://static.hotjar.com/c/hotjar-869378.js?sv=7
60000
5685
https://connect.facebook.net/signals/config/4688141327926537?v=2.9.47&r=stable
1200000
148118
https://connect.facebook.net/signals/config/5302515973095691?v=2.9.47&r=stable
1200000
148116
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
1200000
148116
https://connect.facebook.net/signals/config/121318489681862?v=2.9.47&r=stable
1200000
148101
https://connect.facebook.net/en_US/fbevents.js
1200000
27400
https://az416426.vo.msecnd.net/scripts/a/ai.0.js
1800000
23213
https://www.google-analytics.com/plugins/ua/linkid.js
3600000
2394
https://www.google-analytics.com/analytics.js
7200000
20399
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/jquery-ui.min.css
14400000
8163
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
14400000
7309
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/jquery-ui.structure.min.css
14400000
5369
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/jquery-ui.theme.min.css
14400000
2997
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/EPiServerFormsSamples.css
14400000
841
https://www.dolby.com/globalassets/social-media-sharing-icons/facebook.svg
22149000
1020
https://www.dolby.com/globalassets/footer-icons/vimeo.svg
22150000
1143
https://www.dolby.com/globalassets/footer-icons/linkedin.svg
22150000
1077
https://www.dolby.com/globalassets/footer-icons/twitter.svg
42689000
1103
https://www.dolby.com/globalassets/footer-icons/instagram.svg
43199000
1366
https://www.dolby.com/globalassets/footer-icons/youtube.svg
43199000
1049
https://snap.licdn.com/li.lms-analytics/insight.min.js
43341000
2350
https://dl.episerver.net/13.4.4.1/epi-util/find.js
86400000
3245
https://s.idio.co/ia.js
86400000
1709
https://cdn.cookielaw.org/scripttemplates/6.21.0/otBannerSdk.js
691200000
76828
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL Failing Elements
https://www.dolby.com/Static/Core/Images/external-link.svg
https://www.dolby.com/Static/Core/Images/external-link.svg
https://www.dolby.com/Static/Core/Images/external-link.svg
https://www.dolby.com/Static/Core/Images/external-link.svg
https://www.dolby.com/Static/Core/Images/external-link.svg
https://www.dolby.com/Static/Core/Images/external-link.svg
https://www.dolby.com/Static/Core/Images/external-link.svg
https://www.dolby.com/Static/Core/Images/external-link.svg
https://www.dolby.com/Static/Core/Images/external-link.svg
https://www.dolby.com/Static/Core/Images/external-link.svg
https://www.dolby.com/Static/Core/Images/external-link.svg
96

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of dolby.com. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Dolby.com may provide assistance to deaf or hearing-impaired users with captions on videos.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements

Navigation

Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
80

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that dolby.com should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Links to cross-origin destinations are safe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Preact
10
Hammer.js
2.0.7
Vue
core-js
core-js-global@2.6.12; core-js-pure@2.5.7; core-js-pure@3.0.0; core-js-pure@3.8.3
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 2 insecure requests found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://dolby.com/
Allowed
http://www.dolby.com/
Allowed

Audits

Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Source
Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
WebSocket connection to 'wss://ws23.hotjar.com/api/v2/client/ws' failed: Error in connection establishment: net::ERR_NAME_NOT_RESOLVED
Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
https://az416426.vo.msecnd.net/scripts/a/ai.0.js
https://az416426.vo.msecnd.net/scripts/a/ai.0.js.map
92

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for dolby.com. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of dolby.com on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Content Best Practices

Links do not have descriptive text — 7 links found
Make use of descriptive link text to assist search engines in understanding the content.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
64

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of dolby.com. This includes details about web app manifests.

Installable

Web app manifest and service worker meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of dolby.com on mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 70
Performance 22
Accessibility 96
Best Practices 73
SEO 93
Progressive Web App 67
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.dolby.com/
Updated: 29th September, 2021

4.08 seconds
First Contentful Paint (FCP)
24%
31%
45%

0.02 seconds
First Input Delay (FID)
92%
5%
3%

Simulate loading on mobile
22

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for dolby.com. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0.039
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Opportunities

Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Dolby.com should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Dolby.com should consider minifying JS files.
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Dolby.com should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 68 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://connect.facebook.net/signals/config/5302515973095691?v=2.9.47&r=stable
15686
https://connect.facebook.net/signals/config/4688141327926537?v=2.9.47&r=stable
15685
https://connect.facebook.net/signals/config/121318489681862?v=2.9.47&r=stable
15685
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
15684
https://cdn.cookielaw.org/scripttemplates/6.21.0/otBannerSdk.js
6598
https://www.dolby.com/Static/Core/Js/main.min.js?v=5.5.0.241
514
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
54
https://connect.facebook.net/en_US/fbevents.js
45
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.

Diagnostics

Avoids an excessive DOM size — 736 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
736
Maximum DOM Depth
20
Maximum Child Elements
28
Avoid chaining critical requests — 7 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Dolby.com should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 97 requests • 8,085 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
97
8278875
Media
1
6071738
Script
31
1498167
Image
33
419127
Font
2
134504
Stylesheet
5
72041
Other
20
56235
Document
5
27063
Third-party
62
1173528
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Avoid large layout shifts — 1 element found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.03947998046875
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 20 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://dl.episerver.net/13.4.4.1/epi-util/find.js
7740
942
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
15600
351
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
13825
344
https://cdn.cookielaw.org/scripttemplates/6.21.0/otBannerSdk.js
10007
224
https://az416426.vo.msecnd.net/scripts/a/ai.0.js
14949
147
https://www.googletagmanager.com/gtm.js?id=GTM-KFCNV58
8837
132
https://www.google-analytics.com/analytics.js
10949
117
https://script.hotjar.com/modules.e95f6e2deb67f1b24d8e.js
13709
116
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
9102
111
https://az416426.vo.msecnd.net/scripts/a/ai.0.js
11699
107
Unattributable
9902
105
https://www.gstatic.com/recaptcha/releases/-TriQeni1Ls-Mdq_ssN2cUL5/recaptcha__en.js
14169
91
https://www.googletagmanager.com/gtm.js?id=GTM-KFCNV58
8760
77
Unattributable
1947
77
Unattributable
630
75
https://connect.facebook.net/signals/config/121318489681862?v=2.9.47&r=stable
17601
72
https://connect.facebook.net/signals/config/5302515973095691?v=2.9.47&r=stable
18873
71
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
9032
70
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
14260
70
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
14425
69
Avoid non-composited animations — 6 animated elements found
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Element Name
Image elements have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of dolby.com on mobile screens.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Other

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://dolby.com/
http/1.1
0
213.93399999943
180
0
301
text/plain
http://www.dolby.com/
http/1.1
214.49600008782
471.40999999829
493
0
301
text/html
https://www.dolby.com/
h2
472.00800001156
1071.5349999955
22737
125807
200
text/html
Document
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/EPiServerFormsSamples.css
h2
1090.1099999901
1147.3730000434
841
566
200
text/css
Stylesheet
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/jquery-ui.min.css
h2
1090.2469999855
1200.0290000578
8163
30169
200
text/css
Stylesheet
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/jquery-ui.structure.min.css
h2
1090.4830000363
1180.269000004
5369
14773
200
text/css
Stylesheet
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/jquery-ui.theme.min.css
h2
1090.9669999965
1159.2400000663
2997
13872
200
text/css
Stylesheet
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
h2
1092.4639999866
1116.0709999967
7309
18980
200
application/javascript
Script
https://www.dolby.com/Static/Core/Js/vendors~critical~main.min.js?v=5.5.0.241
h2
1092.6280000713
1175.0069999835
49904
150387
200
application/x-javascript
Script
https://www.dolby.com/Static/Core/Js/main.min.js?v=5.5.0.241
h2
1092.9270000197
1242.6200000336
88071
424792
200
application/x-javascript
Script
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
h2
1304.3450000696
1449.00100003
227754
707130
200
application/x-javascript
Script
https://www.dolby.com/WebResource.axd?d=_EqhT6U9PGScn2ft2d9UChq4H_2oLKQSyfcaZUIfz7vlL3__WpmC_JzyZALPDciXZ1A7q9foDT0opm5UO3Jet0H12Y12IG_uyUm_5yYQQ0wO2XgpeZA-RiHsVDQQXCtfvXhMlkRt1ABJNY3OvPOTacRuo_Hcbr8VOAtWArv4IgN77f5abOCeuzlX2DXXK-HIZIjgB-hCDn00SlxsM6C0vrNYErgCSWvMIYNQ7vvaxCY1&t=637680272800000000
h2
1093.3120000409
1489.5170000382
1684
3412
200
application/x-javascript
Script
https://www.dolby.com/Static/Core/Css/main.min.css?v=5.5.0.241
h2
1496.2970000925
1621.0030000657
54671
410510
200
text/css
Stylesheet
https://www.dolby.com/Static/Core/Images/external-link.svg
h2
1488.6420000112
1537.9439999815
793
241
200
image/svg+xml
Image
https://www.dolby.com/globalassets/social-media-sharing-icons/facebook.svg
h2
1491.1410000641
1551.1490000645
1020
696
200
image/svg+xml
Image
https://www.dolby.com/globalassets/footer-icons/twitter.svg
h2
1495.3400000231
1579.8630000791
1105
869
200
image/svg+xml
Image
https://www.dolby.com/globalassets/footer-icons/linkedin.svg
h2
1495.6240000902
1560.0320000667
1075
795
200
image/svg+xml
Image
https://www.dolby.com/globalassets/footer-icons/youtube.svg
h2
1495.7350000041
1524.3620000547
1050
784
200
image/svg+xml
Image
https://www.dolby.com/globalassets/footer-icons/instagram.svg
h2
1495.8170000464
1574.1820000112
1367
1611
200
image/svg+xml
Image
https://www.dolby.com/globalassets/footer-icons/vimeo.svg
h2
1495.9019999951
1544.6099999826
1141
932
200
image/svg+xml
Image
https://dl.episerver.net/13.4.4.1/epi-util/find.js
h2
1256.7879999988
1302.3080000421
3245
5993
200
application/javascript
Script
https://www.google.com/recaptcha/api.js
h2
1495.9810000146
1510.7260000659
1174
850
200
text/javascript
Script
https://cdn.cookielaw.org/consent/4ef5a5b0-4506-463f-873c-cf5000dcf6c6/4ef5a5b0-4506-463f-873c-cf5000dcf6c6.json
h2
1128.4030000679
1154.4530000538
2969
4785
200
application/x-javascript
XHR
https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location
h2
1496.0820000852
1519.4050000282
504
168
200
text/javascript
Script
https://www.googletagmanager.com/gtm.js?id=GTM-KFCNV58
h2
1496.2000000523
1511.7060000775
71689
206656
200
application/javascript
Script
https://www.dolby.com/Static/Core/Fonts/AvenirNextLTPro-Medium.woff
h2
1514.1050000675
1566.1410000175
40418
39796
200
font/woff
Font
https://az416426.vo.msecnd.net/scripts/a/ai.0.js
h2
1522.3240000196
1537.345000077
23213
96705
200
application/x-javascript
Script
https://www.dolby.com/Static/Core/Js/sticky-nav.min.js?v=1632429501
h2
1775.5110000726
1809.7940000007
4805
14145
200
application/x-javascript
Script
https://www.dolby.com/Static/Core/Fonts/AvenirNext-DemiBold.woff
h2
1867.353000096
1972.2750000656
94086
93464
200
font/woff
Font
https://www.dolby.com/Static/Core/Js/vendors~vue-toasted.min.js?v=1632429501
h2
1973.7550000427
2056.5400000196
20407
57424
200
application/x-javascript
Script
https://www.dolby.com/en/api/contentrecommendationsapi/deliveryResults?contentId=11309
h2
1984.0679999907
2351.311000064
798
811
200
application/json
XHR
https://www.dolby.com/siteassets/homepage/v7_a_1x1.jpg?width=500&mode=min
h2
2051.1180000613
2528.1149999937
35603
34905
200
image/jpeg
Image
https://www.dolby.com/globalassets/mock-up/vimeo/vimeo_key_image.jpg?width=500&mode=min
h2
2051.2560000643
2517.7240000339
35345
34647
200
image/jpeg
Image
https://www.dolby.com/globalassets/mock-up/billie-eilish/billie_logos.jpg?width=1024&mode=min
h2
2053.7699999986
2099.5910000056
86251
85414
200
image/webp
Image
https://www.dolby.com/globalassets/mock-up/justin-bieber/justinbieber_16x9_web.jpg?width=1024&mode=min
h2
2054.1720000328
2609.1370000504
66693
65995
200
image/jpeg
Image
https://www.dolby.com/globalassets/mock-up/the-weeknd/16x9-web-opt-1.jpg?width=1024&mode=min
h2
2054.673000006
2132.4950000271
47759
46922
200
image/webp
Image
https://www.dolby.com/globalassets/mock-up/j-balvin/dolby_atmos_x_jbalvin.jpg?width=1024&mode=min
h2
2054.9909999827
2724.4930000743
47486
46644
200
image/webp
Image
https://www.dolby.com/globalassets/mock-up/olivia-rodrigo/oliviar_16x9_web.jpg?width=1024&mode=min
h2
2055.677000084
2580.9740000404
68462
67764
200
image/jpeg
Image
https://www.gstatic.com/recaptcha/releases/-TriQeni1Ls-Mdq_ssN2cUL5/recaptcha__en.js
h2
2057.9860000871
2070.131000015
138159
351026
200
text/javascript
Script
https://cdn.cookielaw.org/scripttemplates/6.21.0/otBannerSdk.js
h2
2100.361000048
2133.3650000161
76828
318440
200
application/javascript
Script
https://8782803.fls.doubleclick.net/activityi;src=8782803;type=dolby0;cat=dolby0;ord=8220698582055;gtm=2wg9r0;auiddc=976853189.1632924375;ps=1;~oref=https%3A%2F%2Fwww.dolby.com%2F?
h2
2149.3750000373
2163.3690000745
1276
448
200
text/html
Document
https://www.google-analytics.com/analytics.js
h2
2152.8190000681
2158.0430000322
20399
49529
200
text/javascript
Script
https://static.hotjar.com/c/hotjar-869378.js?sv=7
h2
2157.300000079
2174.0090000676
5694
47816
200
application/javascript
Script
https://static.ads-twitter.com/uwt.js
h2
2159.3310000608
2173.7060000887
5943
14407
200
application/javascript
Script
https://www.googleadservices.com/pagead/conversion_async.js
h2
2162.8369999817
2172.9370000539
14941
37424
200
text/javascript
Script
https://s.idio.co/ia.js
h2
2167.1110000461
2228.5489999922
1709
2176
200
application/javascript
Script
https://www.youtube.com/iframe_api
h2
2168.2920000749
2188.1370000774
1938
980
200
text/javascript
Script
https://connect.facebook.net/en_US/fbevents.js
h2
2168.9440000337
2183.1470000325
27400
100837
200
application/x-javascript
Script
https://snap.licdn.com/li.lms-analytics/insight.min.js
http/1.1
2170.3289999859
2250.6080000894
2350
4684
200
application/x-javascript
Script
https://8782803.fls.doubleclick.net/activityi;register_conversion=1;src=8782803;type=dolby0;cat=dolby0;ord=8220698582055;gtm=2wg9r0;auiddc=976853189.1632924375;ps=1;~oref=https%3A%2F%2Fwww.dolby.com%2F?
h2
2178.0140000628
2185.9539999859
1020
0
200
text/html
Image
https://www.google-analytics.com/plugins/ua/linkid.js
h2
2370.4300000099
2374.8540000524
1705
1569
200
text/javascript
Script
https://cdn.cookielaw.org/consent/4ef5a5b0-4506-463f-873c-cf5000dcf6c6/6e2765cb-7ff7-476d-b7b0-27112f1876e3/en.json
h2
2408.9220000897
2443.031999981
21186
98103
200
application/x-javascript
Fetch
https://googleads.g.doubleclick.net/pagead/viewthroughconversion/786152507/?random=1632924375530&cv=9&fst=1632924375530&num=1&guid=ON&resp=GooglemKTybQhCsO&eid=376635471&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_his=2&u_tz=-420&u_java=false&u_nplug=0&u_nmime=0&gtm=2wg9r0&sendb=1&ig=1&frm=0&url=https%3A%2F%2Fwww.dolby.com%2F&tiba=Sound%2C%20Visual%2C%20%26%20Display%20Technology%20-%20Dolby&hn=www.googleadservices.com&async=1&rfmt=3&fmt=4
h2
2420.8179999841
2434.1300000669
1825
1701
200
text/javascript
Script
https://script.hotjar.com/modules.e95f6e2deb67f1b24d8e.js
h2
2424.6980000753
2440.5310000293
60452
226752
200
application/javascript
Script
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
h2
2441.9570000609
2524.2270000745
148116
501413
200
application/x-javascript
Script
https://a.idio.co/ia.gif?r=&s=235df551-88df-4231-8af6-eafcb5bac0f9&x%5Bidio_visitor_id%5D%5B0%5D=c39ef464-1f29-40aa-b084-209d8edcbcd4&c=dolbylabs&d=2579&a=consume&u=https%3A%2F%2Fwww.dolby.com%2F&l=1632924375562&z=0.41398632090854637
http/1.1
2449.1730000591
2628.9250000846
239
26
200
image/gif
Image
https://adservice.google.com/ddm/fls/i/src=8782803;type=dolby0;cat=dolby0;ord=8220698582055;gtm=2wg9r0;auiddc=976853189.1632924375;ps=1;~oref=https%3A%2F%2Fwww.dolby.com%2F
h2
2479.0610000491
2493.2620000327
840
194
200
text/html
Document
https://analytics.twitter.com/i/adsct?type=javascript&version=2.0.4&p_id=Twitter&p_user_id=0&txn_id=nvhww&events=%5B%5B%22pageview%22%2Cnull%5D%5D&tw_sale_amount=0&tw_order_quantity=0&tw_iframe_status=0&event_id=757ffe2c-7a06-4034-b0a6-a93dd0fbca0f&tw_document_href=https%3A%2F%2Fwww.dolby.com%2F&tpx_cb=twttr.conversion.loadPixels
h2
2477.9540000018
2525.0600000145
970
31
200
application/javascript
Script
https://t.co/i/adsct?type=javascript&version=2.0.4&p_id=Twitter&p_user_id=0&txn_id=nvhww&events=%5B%5B%22pageview%22%2Cnull%5D%5D&tw_sale_amount=0&tw_order_quantity=0&tw_iframe_status=0&event_id=757ffe2c-7a06-4034-b0a6-a93dd0fbca0f&tw_document_href=https%3A%2F%2Fwww.dolby.com%2F
h2
2479.2930000694
2514.7930000676
695
43
200
image/gif
Image
https://px.ads.linkedin.com/collect?v=2&fmt=js&pid=1882148&time=1632924375591&url=https%3A%2F%2Fwww.dolby.com%2F
http/1.1
2484.1070000548
2635.5410000542
1002
0
302
text/plain
https://www.youtube.com/s/player/d82ca80e/www-widgetapi.vflset/www-widgetapi.js
h2
2487.3900000239
2498.4350000741
45589
137928
200
text/javascript
Script
https://vars.hotjar.com/box-dfc01efbdc94bb0936d9a35a502b0b64.html
h2
2492.7369999932
2514.2019999912
1598
2431
200
text/html
Document
https://www.google-analytics.com/j/collect?v=1&_v=j93&a=834867665&t=pageview&_s=1&dl=https%3A%2F%2Fwww.dolby.com%2F&ul=en-us&de=UTF-8&dt=Sound%2C%20Visual%2C%20%26%20Display%20Technology%20-%20Dolby&sd=24-bit&sr=360x640&vp=360x640&je=0&_u=aGBAAEAjAAAAAC~&jid=461648668&gjid=1914877626&cid=1829876420.1632924375&tid=UA-2812751-44&_gid=875580086.1632924375&_r=1&gtm=2wg9r0KFCNV58&z=1207452590
h2
2501.5200000489
2505.2300000098
639
2
200
text/plain
XHR
https://www.google.com/pagead/1p-user-list/786152507/?random=1632924375530&cv=9&fst=1632924000000&num=1&guid=ON&eid=376635471&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_his=2&u_tz=-420&u_java=false&u_nplug=0&u_nmime=0&gtm=2wg9r0&sendb=1&frm=0&url=https%3A%2F%2Fwww.dolby.com%2F&tiba=Sound%2C%20Visual%2C%20%26%20Display%20Technology%20-%20Dolby&async=1&fmt=3&is_vtc=1&random=862655404&resp=GooglemKTybQhCsO&rmt_tld=0&ipr=y
h2
2507.9840000253
2518.175000092
763
42
200
image/gif
Image
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XHR
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Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
1112.885
7.59
1121.128
7.419
1129.604
9.186
1157.619
9.218
1294.498
11.562
1529.087
14.763
1543.874
9.798
1560.378
471.139
2031.618
17.723
2075.859
13.27
2096.19
8.051
2104.349
19.354
2146.597
65.764
2214.679
13.603
2228.716
9.475
2241.639
6.003
2250.571
10.958
2269.236
15.009
2285.036
10.887
2300.241
22.73
2327.048
17.551
2346.767
55.275
2402.12
29.284
2431.585
15.456
2450.617
8.252
2463.409
16.673
2480.123
6.994
2487.66
11.565
2501.408
5.5
2530.367
9.721
2546.071
26.37
2572.831
18.679
2592.414
7.128
2599.634
26.79
2629.449
29.091
2662.482
6.99
2693.905
8.493
2710.183
111.765
2840.342
87.828
2931.083
23.897
2956.93
19.285
2979.321
5.57
2988.508
11.424
2999.97
85.88
3085.935
7.999
3094.891
11.671
3110.822
17.912
3133.667
36.789
3171.93
5.274
3184.349
5.29
3192.082
5.351
3207.916
5.065
3213.26
17.649
3257.813
5.27
3274.595
7.606
3286.166
15.816
3324.713
5.09
3341.297
5.061
3357.913
5.05
3374.574
5.259
3392.456
17.473
3410.413
6.309
3417.228
5.6
3425.91
7.814
3433.749
5.626
3443.137
5.41
3453.691
5.345
3461.26
6.29
3475.069
5.54
3491.32
5.04
3507.869
5.057
3524.595
5.811
3541.254
5.615
3558.051
5.489
3574.908
15.138
3591.305
8.287
3608.04
5.651
3624.643
5.575
3630.296
6.98
3641.319
6.578
3657.819
6.095
3674.598
7.554
3691.264
5.015
3707.929
5.669
3741.293
5.385
3758.192
5.74
3791.299
5.416
3807.804
5.547
3813.42
6.682
3824.505
5.177
3841.317
7.347
3874.579
5.629
3891.819
6.093
3908.579
5.347
3925.475
6.401
3974.647
6.863
3991.329
5.27
4024.611
5.66
4041.318
5.832
4091.275
6.633
4158.055
10.752
4174.655
8.502
4191.508
5.072
4208.09
8.048
4291.375
5.109
4391.248
34.389
4425.705
8.867
4434.632
10.543
4449.109
9.147
4460.038
6.038
4475.245
6.166
4491.658
5.101
4508.213
5.158
4524.589
7.441
4541.195
5.285
4557.921
5.383
4574.598
5.581
4591.313
5.45
4607.895
6.317
4624.7
6.219
4641.315
7.177
4657.893
7.086
4674.594
6.609
4691.262
8.028
4708.987
9.629
4724.62
6.326
4741.286
6.157
4757.915
5.718
4774.619
5.606
4791.588
5.997
4808.087
7.123
4824.954
5.775
4841.457
5.91
4857.863
7.495
4874.702
6.196
4891.558
7.199
4907.89
5.81
4924.565
6.056
4942.134
5.985
4960.275
5.329
4974.548
6.614
4991.35
12.606
5008.703
5.484
5024.657
5.28
5074.611
5.304
5092.916
7.966
5113.042
5.498
5141.29
7.152
5178.141
6.914
5192.339
6.034
5208.446
6.322
5224.764
5.384
5242.448
6.663
5274.543
5.119
5357.909
5.41
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Opportunities

Properly size images — Potential savings of 15 KiB
Images can slow down the page's load time. Dolby.com should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.dolby.com/siteassets/homepage/v7_a_1x1.jpg?width=500&mode=min
34905
15506
Reduce unused CSS — Potential savings of 65 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Dolby.com should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.dolby.com/Static/Core/Css/main.min.css?v=5.5.0.241
54671
52727
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} ...
16862
14337
Serve images in next-gen formats — Potential savings of 107 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.dolby.com/globalassets/mock-up/olivia-rodrigo/oliviar_16x9_web.jpg?width=1024&mode=min
67764
37221.65
https://www.dolby.com/globalassets/mock-up/justin-bieber/justinbieber_16x9_web.jpg?width=1024&mode=min
65995
36471.2
https://www.dolby.com/siteassets/homepage/v7_a_1x1.jpg?width=500&mode=min
34905
18452.95
https://www.dolby.com/globalassets/mock-up/vimeo/vimeo_key_image.jpg?width=500&mode=min
34647
17727.55

Metrics

First Contentful Paint — 4.0 s
The time taken for the first image or text on the page to be rendered.
Speed Index — 10.6 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 7.0 s
The timing of the largest text or image that is painted.
Time to Interactive — 18.0 s
The time taken for the page to become fully interactive.
Total Blocking Time — 2,350 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

Max Potential First Input Delay — 940 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 5.2 s
The time taken for the primary content of the page to be rendered.
First Contentful Paint (3G) — 8490 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Eliminate render-blocking resources — Potential savings of 1,350 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Dolby.com should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
7309
780
https://www.dolby.com/Static/Core/Js/vendors~critical~main.min.js?v=5.5.0.241
49904
600
https://www.dolby.com/Static/Core/Js/main.min.js?v=5.5.0.241
88071
450
Defer offscreen images — Potential savings of 180 KiB
Time to Interactive can be slowed down by resources on the page. Dolby.com should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.dolby.com/globalassets/mock-up/olivia-rodrigo/oliviar_16x9_web.jpg?width=1024&mode=min
67764
67764
https://www.dolby.com/globalassets/mock-up/j-balvin/dolby_atmos_x_jbalvin.jpg?width=1024&mode=min
46644
46644
https://www.dolby.com/siteassets/homepage/v7_a_1x1.jpg?width=500&mode=min
34905
34905
https://www.dolby.com/globalassets/mock-up/vimeo/vimeo_key_image.jpg?width=500&mode=min
34647
34647
Reduce unused JavaScript — Potential savings of 957 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
227754
163125
https://connect.facebook.net/signals/config/5302515973095691?v=2.9.47&r=stable
148140
142077
https://connect.facebook.net/signals/config/121318489681862?v=2.9.47&r=stable
148125
142069
https://connect.facebook.net/signals/config/4688141327926537?v=2.9.47&r=stable
148125
142063
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
148116
105669
https://www.gstatic.com/recaptcha/releases/-TriQeni1Ls-Mdq_ssN2cUL5/recaptcha__en.js
138159
101224
https://www.dolby.com/Static/Core/Js/main.min.js?v=5.5.0.241
88071
54734
https://cdn.cookielaw.org/scripttemplates/6.21.0/otBannerSdk.js
76828
37897
https://www.youtube.com/s/player/d82ca80e/www-widgetapi.vflset/www-widgetapi.js
45589
37520
https://script.hotjar.com/modules.e95f6e2deb67f1b24d8e.js
60452
28320
https://www.googletagmanager.com/gtm.js?id=GTM-KFCNV58
71689
24905
Reduce initial server response time — Root document took 600 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.dolby.com/
600.517
Avoid multiple page redirects — Potential savings of 1,260 ms
Redirects can cause additional delays before the page can begin loading. Dolby.com should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://dolby.com/
630
http://www.dolby.com/
630
https://www.dolby.com/
0

Diagnostics

Avoid enormous network payloads — Total size was 8,085 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://download.dolby.com/music/atmos-music/JustinBieber_AmbientHeader_v01_SDR_1024x576_2398_H264.mp4
6071738
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
227754
https://connect.facebook.net/signals/config/5302515973095691?v=2.9.47&r=stable
148140
https://connect.facebook.net/signals/config/121318489681862?v=2.9.47&r=stable
148125
https://connect.facebook.net/signals/config/4688141327926537?v=2.9.47&r=stable
148125
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
148116
https://www.gstatic.com/recaptcha/releases/-TriQeni1Ls-Mdq_ssN2cUL5/recaptcha__en.js
138159
https://www.dolby.com/Static/Core/Fonts/AvenirNext-DemiBold.woff
94086
https://www.dolby.com/Static/Core/Js/main.min.js?v=5.5.0.241
88071
https://www.dolby.com/globalassets/mock-up/billie-eilish/billie_logos.jpg?width=1024&mode=min
86251
Serve static assets with an efficient cache policy — 28 resources found
Dolby.com can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://download.dolby.com/music/atmos-music/JustinBieber_AmbientHeader_v01_SDR_1024x576_2398_H264.mp4
0
6071738
https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location
0
504
https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=ec7df656-02c4-4c66-a911-24161abd73e0&_expected_cookie=c238cf8611324d6eee513261d560f377
0
499
https://a.idio.co/ia.gif?r=&s=235df551-88df-4231-8af6-eafcb5bac0f9&x%5Bidio_visitor_id%5D%5B0%5D=c39ef464-1f29-40aa-b084-209d8edcbcd4&c=dolbylabs&d=2579&a=consume&u=https%3A%2F%2Fwww.dolby.com%2F&l=1632924375562&z=0.41398632090854637
0
239
https://static.hotjar.com/c/hotjar-869378.js?sv=7
60000
5694
https://connect.facebook.net/signals/config/5302515973095691?v=2.9.47&r=stable
1200000
148140
https://connect.facebook.net/signals/config/121318489681862?v=2.9.47&r=stable
1200000
148125
https://connect.facebook.net/signals/config/4688141327926537?v=2.9.47&r=stable
1200000
148125
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
1200000
148116
https://connect.facebook.net/en_US/fbevents.js
1200000
27400
https://az416426.vo.msecnd.net/scripts/a/ai.0.js
1800000
23213
https://www.google-analytics.com/plugins/ua/linkid.js
3600000
1705
https://www.google-analytics.com/analytics.js
7200000
20399
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/jquery-ui.min.css
14400000
8163
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
14400000
7309
https://www.dolby.com/globalassets/footer-icons/twitter.svg
14400000
1105
https://www.dolby.com/globalassets/social-media-sharing-icons/facebook.svg
14400000
1020
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/EPiServerFormsSamples.css
14400000
841
https://snap.licdn.com/li.lms-analytics/insight.min.js
18235000
2350
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/jquery-ui.structure.min.css
21236000
5369
https://www.dolby.com/util/EPiServer.Forms.Samples/ClientResources/ViewMode/jquery-ui.theme.min.css
21236000
2997
https://www.dolby.com/globalassets/footer-icons/vimeo.svg
42661000
1141
https://www.dolby.com/globalassets/footer-icons/linkedin.svg
42661000
1075
https://www.dolby.com/globalassets/footer-icons/instagram.svg
43171000
1367
https://www.dolby.com/globalassets/footer-icons/youtube.svg
43171000
1050
https://dl.episerver.net/13.4.4.1/epi-util/find.js
86400000
3245
https://s.idio.co/ia.js
86400000
1709
https://cdn.cookielaw.org/scripttemplates/6.21.0/otBannerSdk.js
691200000
76828
Reduce JavaScript execution time — 6.9 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
4801.82
2905
45.788
https://script.hotjar.com/modules.e95f6e2deb67f1b24d8e.js
1432.728
1392.328
14.964
Unattributable
1053.952
134.46
1.34
https://www.dolby.com/
992.64
100.156
10.208
https://cdn.cookielaw.org/scripttemplates/6.21.0/otBannerSdk.js
536.016
385.736
32.244
https://www.googletagmanager.com/gtm.js?id=GTM-KFCNV58
434
391.452
24.692
https://connect.facebook.net/signals/config/780101759067602?v=2.9.47&r=stable
372.9
325.128
34.668
https://www.gstatic.com/recaptcha/releases/-TriQeni1Ls-Mdq_ssN2cUL5/recaptcha__en.js
346.884
314.108
24.472
https://www.google-analytics.com/plugins/ua/linkid.js
152.072
149.08
0.8
https://az416426.vo.msecnd.net/scripts/a/ai.0.js
148.352
70.884
6.62
https://www.google-analytics.com/analytics.js
118.72
112.552
4.084
https://connect.facebook.net/signals/config/121318489681862?v=2.9.47&r=stable
99.5
52.776
32.796
https://connect.facebook.net/signals/config/5302515973095691?v=2.9.47&r=stable
85.264
38.288
33.396
https://www.dolby.com/Static/Core/Js/main.min.js?v=5.5.0.241
77.976
35.652
27.532
https://connect.facebook.net/signals/config/4688141327926537?v=2.9.47&r=stable
76.948
30.176
34.9
https://connect.facebook.net/en_US/fbevents.js
66.632
56.528
6.916
https://www.dolby.com/Static/Core/Js/vendors~critical~main.min.js?v=5.5.0.241
64.992
27.632
10.46
https://www.dolby.com/Static/Core/Css/main.min.css?v=5.5.0.241
60.036
0
0
https://8782803.fls.doubleclick.net/activityi;src=8782803;type=dolby0;cat=dolby0;ord=8220698582055;gtm=2wg9r0;auiddc=976853189.1632924375;ps=1;~oref=https%3A%2F%2Fwww.dolby.com%2F?
53.388
6.252
3.748
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
52.12
44.036
1.768
Minimize main-thread work — 11.4 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
6816.0759999999
Other
1764.02
Style & Layout
1021.756
Rendering
933.49600000001
Script Parsing & Compilation
396.372
Parse HTML & CSS
253.932
Garbage Collection
218.924
Reduce the impact of third-party code — Third-party code blocked the main thread for 1,090 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
68887
367.772
624886
253.008
130362
185.948
71689
166.24
22743
105.516
138159
7.26
47527
0
23213
0
21226
0
6913
0
4667
0
3245
0
2637
0
1948
0
1180
0
96

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of dolby.com. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Dolby.com may provide assistance to deaf or hearing-impaired users with captions on videos.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements
04

Navigation

Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
73

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that dolby.com should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Links to cross-origin destinations are safe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Hammer.js
2.0.7
Vue
core-js
core-js-global@2.6.12; core-js-pure@2.5.7; core-js-pure@3.0.0; core-js-pure@3.8.3
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 2 insecure requests found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://dolby.com/
Allowed
http://www.dolby.com/
Allowed

Audits

Displays images with incorrect aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
URL Aspect Ratio (Displayed) Aspect Ratio (Actual)
https://www.dolby.com/globalassets/mock-up/vimeo/vimeo_key_image.jpg?width=500&mode=min
304 x 162 (1.88)
500 x 281 (1.78)

Audits

Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Source
Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
WebSocket connection to 'wss://ws3.hotjar.com/api/v2/client/ws' failed: Error in connection establishment: net::ERR_NAME_NOT_RESOLVED
Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://www.dolby.com/Static/Core/Js/vendors~main.min.js?v=5.5.0.241
https://az416426.vo.msecnd.net/scripts/a/ai.0.js
https://az416426.vo.msecnd.net/scripts/a/ai.0.js.map
93

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for dolby.com. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of dolby.com on mobile screens.
Document uses legible font sizes — 100% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
100.00%
≥ 12px
Tap targets are sized appropriately — 100% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Content Best Practices

Links do not have descriptive text — 7 links found
Make use of descriptive link text to assist search engines in understanding the content.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
67

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of dolby.com. This includes details about web app manifests.

Installable

Web app manifest and service worker meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of dolby.com on mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 217.114.85.70
Continent: Europe
Country: Sweden
Sweden Flag
Region: Västmanland
City: Västerås
Longitude: 16.5528
Latitude: 59.6162
Currencies: SEK
Languages: Swedish

Web Hosting Provider

Name IP Address
EPISERVER_BackBone_Colocation
Registration

Domain Registrant

Private Registration: No
Name:
Organization:
Country:
City:
State:
Post Code:
Email:
Phone:
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Name IP Address
MarkMonitor, Inc. 104.18.39.152
Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating:
WOT Trustworthiness: 93/100
WOT Child Safety: 95/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: developer.dolby.com
Issued By: COMODO RSA Organization Validation Secure Server CA
Valid From: 10th December, 2020
Valid To: 10th December, 2021
Subject: CN = developer.dolby.com
O = Dolby Laboratories, Inc
L = San Francisco
S = US
Hash: ae7d613d
Issuer: CN = COMODO RSA Organization Validation Secure Server CA
O = COMODO CA Limited
S = GB
Version: 2
Serial Number: 31724843048632047369393516442989772419
Serial Number (Hex): 17DDFB867C441E6FC00F711094323E83
Valid From: 10th December, 2024
Valid To: 10th December, 2024
Signature Algorithm (Short Name): RSA-SHA256
Signature Algorithm (Long Name): sha256WithRSAEncryption
Authority Key Identifier: keyid:9A:F3:2B:DA:CF:AD:4F:B6:2F:BB:2A:48:48:2A:12:B7:1B:42:C1:24
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
CRL Distribution Points:
Full Name:
URI:http://crl.comodoca.com/COMODORSAOrganizationValidationSecureServerCA.crl

Certificate Policies: Policy: 1.3.6.1.4.1.6449.1.2.1.3.4
CPS: https://sectigo.com/CPS
Policy: 2.23.140.1.2.2

Authority Information Access: CA Issuers - URI:http://crt.comodoca.com/COMODORSAOrganizationValidationSecureServerCA.crt
OCSP - URI:http://ocsp.comodoca.com

SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 7D:3E:F2:F8:8F:FF:88:55:68:24:C2:C0:CA:9E:52:89:
79:2B:C5:0E:78:09:7F:2E:6A:97:68:99:7E:22:F0:D7
Timestamp : Dec 10 00:38:00.704 2020 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:21:00:A1:59:7B:9D:AB:50:81:9B:99:64:EC:
F3:B9:B6:6B:BB:21:D2:1C:DA:22:EA:40:76:A4:26:61:
9D:F8:76:33:E2:02:20:31:BE:B1:8C:65:3A:3F:A6:22:
CA:4B:B4:6C:81:4D:86:78:9B:9A:34:4D:E6:D2:D4:F9:
F8:31:BB:BF:41:25:CA
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 94:20:BC:1E:8E:D5:8D:6C:88:73:1F:82:8B:22:2C:0D:
D1:DA:4D:5E:6C:4F:94:3D:61:DB:4E:2F:58:4D:A2:C2
Timestamp : Dec 10 00:38:00.865 2020 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:21:00:EF:A3:9E:AD:5D:67:E9:FE:9A:2F:E9:
A8:39:11:16:B0:C1:00:8D:0F:2E:B4:9D:2E:89:4E:BD:
02:24:96:8A:D0:02:20:22:14:D0:91:8A:EC:07:BA:3F:
39:14:6A:BD:BC:9F:3B:B5:BB:0F:9E:51:0C:D8:0F:08:
81:6C:85:EE:6D:2C:DC
Key Usage: Digital Signature, Key Encipherment
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:dolby.com
DNS:experience.dolby.com
DNS:games.dolby.com
DNS:helix.dolby.com
DNS:industry.dolby.com
DNS:library.dolby.com
DNS:moviestv.dolby.com
DNS:music.dolby.com
DNS:products.dolby.com
DNS:professional.dolby.com
DNS:starwars.dolby.com
DNS:www.dolby.com
DNS:developer.dolby.com
Technical

DNS Lookup

A Records

Host IP Address Class TTL
dolby.com. 217.114.85.70 IN 300

NS Records

Host Nameserver Class TTL
dolby.com. ns-1205.awsdns-22.org. IN 21600
dolby.com. ns-1692.awsdns-19.co.uk. IN 21600
dolby.com. ns-331.awsdns-41.com. IN 21600
dolby.com. ns-743.awsdns-28.net. IN 21600

MX Records

Priority Host Server Class TTL
10 dolby.com. mxa-000fd501.gslb.pphosted.com. IN 60
10 dolby.com. mxb-000fd501.gslb.pphosted.com. IN 60
20 dolby.com. mx0a-000fd501.pphosted.com. IN 60
20 dolby.com. mx0b-000fd501.pphosted.com. IN 60

SOA Records

Domain Name Primary NS Responsible Email TTL
dolby.com. ns-743.awsdns-28.net. awsdns-hostmaster.amazon.com. 900

TXT Records

Host Value Class TTL
dolby.com. MS=ms22151093 IN 60
dolby.com. apple-domain-verification=HXjFQmrck6E8VdL9 IN 60
dolby.com. atlassian-domain-verification=VtgUaFQZBed1uBSGwh/qrMiFCtyKg9dJ6a6AQmzFUmjwx8KhsQGxADLeEcHuXL6e IN 60
dolby.com. docusign=15073131-8970-4b6a-bcf9-fe47e47a0c52 IN 60
dolby.com. google-site-verification=D6lQD9mKUg_7rLzNtqYFUJ3guhQ10BJcneyDiBEDiag IN 60
dolby.com. google-site-verification=UG2ZNyZ_hPgi4s0NH03IC78OMjXPhSEdoY5wl6-fqKo IN 60
dolby.com. google-site-verification=w2MJwwN8qLTp8yMfiJR5PoIBDErlxkXdnB1ghG_FVrI IN 60
dolby.com. miro-verification=ba9aaaf0e96790a63feebbbc31ddf408d318168a IN 60
dolby.com. onetrust-domain-verification=66e16727e04347979f427953779e9105 IN 60
dolby.com. onetrust-domain-verification=baf5c50cd66d40fb968775025eda0b61 IN 60
dolby.com. pardot823243=18e25e68f9d209a0c531cca6ea997f59310e9f983bf018bd4cb6fa888856c1a3 IN 60
dolby.com. pardot823243=72d89ce9fa74b310565d27843aa9953e8d70d4173d6fe746a51d1f8345575faa IN 60
dolby.com. rK34DlaByMC2orBhCmZEEGLhvBdO4eNX9KiwWmiJnBiJqX6LD0QbePHtdbOIAbGN/ngisjK/JcmCqPFyjBteAg== IN 60
dolby.com. v=spf1 IN 60

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Date: 29th September, 2021
Content-Type: text/html; charset=utf-8
Cache-Control: private
Server: cloudflare
Connection: keep-alive
Vary: Accept-Encoding
Set-Cookie: *
X-AspNetMvc-Version: 5.2
X-AspNet-Version: 4.0.30319
Request-Context: appId=cid-v1:bcff85e9-7aa5-4a9d-b215-891ed6127740
Access-Control-Expose-Headers: Request-Context
X-Powered-By: ASP.NET
CF-Cache-Status: DYNAMIC
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
CF-RAY: 6965c4712c6ff019-EWR

Whois Lookup

Created: 20th November, 1991
Changed: 18th October, 2019
Expires: 18th November, 2021
Registrar: MarkMonitor, Inc.
Status: clientUpdateProhibited
clientTransferProhibited
clientDeleteProhibited
Nameservers: ns-1205.awsdns-22.org
ns-1692.awsdns-19.co.uk
ns-331.awsdns-41.com
ns-743.awsdns-28.net
Owner Organization: Dolby Laboratories, Inc.
Owner State: CA
Owner Country: US
Owner Email: Select Request Email Form at https://domains.markmonitor.com/whois/dolby.com
Admin Organization: Dolby Laboratories, Inc.
Admin State: CA
Admin Country: US
Admin Email: Select Request Email Form at https://domains.markmonitor.com/whois/dolby.com
Tech Organization: Dolby Labs
Tech State: CA
Tech Country: US
Tech Email: Select Request Email Form at https://domains.markmonitor.com/whois/dolby.com
Full Whois: Domain Name: dolby.com
Registry Domain ID: 781650_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.markmonitor.com
Registrar URL: http://www.markmonitor.com
Updated Date: 2019-10-18T09:17:22+0000
Creation Date: 1991-11-20T05:00:00+0000
Registrar Registration Expiration Date: 2021-11-18T08:00:00+0000
Registrar: MarkMonitor, Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email: abusecomplaints@markmonitor.com
Registrar Abuse Contact Phone: +1.2083895770
Domain Status: clientUpdateProhibited (https://www.icann.org/epp#clientUpdateProhibited)
Domain Status: clientTransferProhibited (https://www.icann.org/epp#clientTransferProhibited)
Domain Status: clientDeleteProhibited (https://www.icann.org/epp#clientDeleteProhibited)
Registrant Organization: Dolby Laboratories, Inc.
Registrant State/Province: CA
Registrant Country: US
Registrant Email: Select Request Email Form at https://domains.markmonitor.com/whois/dolby.com
Admin Organization: Dolby Laboratories, Inc.
Admin State/Province: CA
Admin Country: US
Admin Email: Select Request Email Form at https://domains.markmonitor.com/whois/dolby.com
Tech Organization: Dolby Labs
Tech State/Province: CA
Tech Country: US
Tech Email: Select Request Email Form at https://domains.markmonitor.com/whois/dolby.com
Name Server: ns-1205.awsdns-22.org
Name Server: ns-331.awsdns-41.com
Name Server: ns-1692.awsdns-19.co.uk
Name Server: ns-743.awsdns-28.net
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2021-09-29T14:05:42+0000 <<<

For more information on WHOIS status codes, please visit:
https://www.icann.org/resources/pages/epp-status-codes

If you wish to contact this domain’s Registrant, Administrative, or Technical
contact, and such email address is not visible above, you may do so via our web
form, pursuant to ICANN’s Temporary Specification. To verify that you are not a
robot, please enter your email address to receive a link to a page that
facilitates email communication with the relevant contact(s).

Web-based WHOIS:
https://domains.markmonitor.com/whois

If you have a legitimate interest in viewing the non-public WHOIS details, send
your request and the reasons for your request to whoisrequest@markmonitor.com
and specify the domain name in the subject line. We will review that request and
may ask for supporting documentation and explanation.

The data in MarkMonitor’s WHOIS database is provided for information purposes,
and to assist persons in obtaining information about or related to a domain
name’s registration record. While MarkMonitor believes the data to be accurate,
the data is provided "as is" with no guarantee or warranties regarding its
accuracy.

By submitting a WHOIS query, you agree that you will use this data only for
lawful purposes and that, under no circumstances will you use this data to:
(1) allow, enable, or otherwise support the transmission by email, telephone,
or facsimile of mass, unsolicited, commercial advertising, or spam; or
(2) enable high volume, automated, or electronic processes that send queries,
data, or email to MarkMonitor (or its systems) or the domain name contacts (or
its systems).

MarkMonitor reserves the right to modify these terms at any time.

By submitting this query, you agree to abide by this policy.

MarkMonitor Domain Management(TM)
Protecting companies and consumers in a digital world.

Visit MarkMonitor at https://www.markmonitor.com
Contact us at +1.8007459229
In Europe, at +44.02032062220

Nameservers

Name IP Address
ns-1205.awsdns-22.org 205.251.196.181
ns-1692.awsdns-19.co.uk 205.251.198.156
ns-331.awsdns-41.com 205.251.193.75
ns-743.awsdns-28.net 205.251.194.231
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Subdomains

Domain Subdomain
axon

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