- URL: https://open.spotify.com
- Date: 12/14/22 15:56:34
Webpage Performance Test Result
- Settings: Desktop
v108
Cable
Virginia USA
More
- First View only
- Test runs: 3
- Connectivity: 5000/1000 Kbps, 28ms Latency
- Custom Metrics

View:
Lighthouse Report
Lighthouse is an open-source, automated tool for improving the quality of web pages. You can run it against any web page, public or requiring authentication. Overall scoring color key: (0-49 50-89 90-100).
Did you know? Lighthouse runs in Chrome and provides a great complementary analysis alongside the many browsers, devices, and locations WebPageTest offers. To see how this site performs in more environments: Start a new test
Performance 35
Lighthouse Metrics
Values are estimated and may vary.
The performance score is calculated directly from these metrics. See calculator.
First Contentful Paint | Speed Index | Largest Contentful Paint | Time to Interactive | Total Blocking Time | Cumulative Layout Shift |
---|---|---|---|---|---|
5.1s | 7.4s | 14.6s | 12.9s | 270ms | 0.002 |
Aiming to improve? check out our Opportunities & Experiments for suggestions and run No-Code Experiments to see how changes impact this site!
Opportunities (6)
-
Reduce unused JavaScript
Estimated savings 3.38 s
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn more.
URL Transfer Size (bytes) Potential Savings (bytes) https://open.spotifycdn.com/cdn/build/mobile-web-player/mobile-web-player.6a62f7b6.js 333358 215619 https://open.spotifycdn.com/cdn/build/mobile-web-player/vendor~mobile-web-player.ab2b0eb5.js 367054 205994 https://connect.facebook.net/signals/config/1483047915331997?v=2.9.89&r=stable 86927 76298 https://cdn.cookielaw.org/scripttemplates/6.26.0/otBannerSdk.js 77992 40346 https://www.googletagmanager.com/gtm.js?id=GTM-PZHN3VD 94368 34570 https://www.googletagmanager.com/gtag/js?id=G-ZWG1NSHWD8&l=dataLayer&cx=c 76483 29839 https://www.googleoptimize.com/optimize.js?id=GTM-W53X654 46919 26995 https://open.spotifycdn.com/cdn/build/mobile-web-player/mwp-dialog-container.ae962bd6.js 27045 26372 Eliminate render-blocking resources
View Experiment!Estimated savings 2.12 s
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. Learn more.
URL Transfer Size (bytes) Potential Savings (ms) https://open.spotifycdn.com/cdn/build/mobile-web-player/mwp-dialog-container.ae962bd6.css 2619 2580 https://open.spotifycdn.com/cdn/build/mobile-web-player/mwp-context-menu-container.b615361a.css 728 304 https://open.spotifycdn.com/cdn/build/mobile-web-player/mobile-web-player.447f22d4.css 27915 304 Use HTTP/2
Estimated savings 1.76 s
HTTP/2 offers many benefits over HTTP/1.1, including binary headers and multiplexing. Learn more.
URL Protocol https://lite-images-i.scdn.co/image/ab67706f00000002c03728d7ade82b2a614d3e78 http/1.1 https://lite-images-i.scdn.co/image/ab67706f00000002c23af7e5cebbb289571b048d http/1.1 https://lite-images-i.scdn.co/image/ab67706f00000002f27ffee7eaa33ff901a74c96 http/1.1 https://lite-images-i.scdn.co/image/ab67706f000000025551996f500ba876bda73fa5 http/1.1 https://lite-images-i.scdn.co/image/ab67706f00000002ca5a7517156021292e5663a6 http/1.1 https://lite-images-i.scdn.co/image/ab67706f00000002abaf6c3c6a4b29f8a4565a86 http/1.1 Enable text compression
Estimated savings 0.15 s
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. Learn more.
URL Transfer Size (bytes) Potential Savings (bytes) https://fastly-insights.com/api/v1/config/040e3997-282c-4275-ba9b-a406ce78b133 18329 16612 Reduce unused CSS
Estimated savings 0.15 s
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn more.
URL Transfer Size (bytes) Potential Savings (bytes) https://open.spotifycdn.com/cdn/build/mobile-web-player/mobile-web-player.447f22d4.css 27915 26929 #onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} ... 17303 14783 Avoid serving legacy JavaScript to modern browsers
Estimated savings 0.15 s
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers. Learn More
URL Potential Savings (bytes) https://connect.facebook.net/signals/plugins/identity.js?v=2.9.89 12356 Location Signal - URL: https://connect.facebook.net/signals/plugins/identity.js?v=2.9.89
- Line: 20
- Column: 1329
@babel/plugin-transform-classes - URL: https://connect.facebook.net/signals/plugins/identity.js?v=2.9.89
- Line: 20
- Column: 23583
Array.prototype.filter - URL: https://connect.facebook.net/signals/plugins/identity.js?v=2.9.89
- Line: 20
- Column: 29697
Array.from - URL: https://connect.facebook.net/signals/plugins/identity.js?v=2.9.89
- Line: 20
- Column: 31203
Array.prototype.includes - URL: https://connect.facebook.net/signals/plugins/identity.js?v=2.9.89
- Line: 20
- Column: 31447
Array.prototype.map - URL: https://connect.facebook.net/signals/plugins/identity.js?v=2.9.89
- Line: 20
- Column: 32242
Array.prototype.find https://connect.facebook.net/signals/config/1483047915331997?v=2.9.89&r=stable 11168 Location Signal - URL: https://connect.facebook.net/signals/config/1483047915331997?v=2.9.89&r=stable
- Line: 19
- Column: 1574
@babel/plugin-transform-classes - URL: https://connect.facebook.net/signals/config/1483047915331997?v=2.9.89&r=stable
- Line: 19
- Column: 28564
Array.prototype.filter - URL: https://connect.facebook.net/signals/config/1483047915331997?v=2.9.89&r=stable
- Line: 19
- Column: 34678
Array.from - URL: https://connect.facebook.net/signals/config/1483047915331997?v=2.9.89&r=stable
- Line: 19
- Column: 36184
Array.prototype.includes - URL: https://connect.facebook.net/signals/config/1483047915331997?v=2.9.89&r=stable
- Line: 19
- Column: 36428
Array.prototype.map - URL: https://connect.facebook.net/signals/config/1483047915331997?v=2.9.89&r=stable
- Line: 19
- Column: 37223
Array.prototype.find https://open.spotifycdn.com/cdn/build/mobile-web-player/vendor~mobile-web-player.ab2b0eb5.js 7942 Location Signal - URL: https://open.spotifycdn.com/cdn/build/mobile-web-player/vendor~mobile-web-player.ab2b0eb5.js
- Line: 0
- Column: 777931
Array.prototype.includes - URL: https://open.spotifycdn.com/cdn/build/mobile-web-player/vendor~mobile-web-player.ab2b0eb5.js
- Line: 0
- Column: 783385
Object.entries - URL: https://open.spotifycdn.com/cdn/build/mobile-web-player/vendor~mobile-web-player.ab2b0eb5.js
- Line: 0
- Column: 783499
Object.values - URL: https://open.spotifycdn.com/cdn/build/mobile-web-player/vendor~mobile-web-player.ab2b0eb5.js
- Line: 0
- Column: 855149
@babel/plugin-transform-classes https://open.spotifycdn.com/cdn/build/mobile-web-player/94.291eaf4d.js 7643 Location Signal - URL: https://open.spotifycdn.com/cdn/build/mobile-web-player/94.291eaf4d.js
- Line: 0
- Column: 47317
Object.entries - URL: https://open.spotifycdn.com/cdn/build/mobile-web-player/94.291eaf4d.js
- Line: 0
- Column: 47426
Object.values https://cdn.cookielaw.org/scripttemplates/6.26.0/otBannerSdk.js 6535 Location Signal - URL: https://cdn.cookielaw.org/scripttemplates/6.26.0/otBannerSdk.js
- Line: 6
- Column: 5421
Array.prototype.includes - URL: https://cdn.cookielaw.org/scripttemplates/6.26.0/otBannerSdk.js
- Line: 6
- Column: 7241
Array.prototype.fill https://pixel-static.spotify.com/sync.min.js 73 Location Signal - URL: https://pixel-static.spotify.com/sync.min.js
- Line: 0
- Column: 2194
@babel/plugin-transform-classes https://connect.facebook.net/en_US/fbevents.js 45 Location Signal - URL: https://connect.facebook.net/en_US/fbevents.js
- Line: 23
- Column: 2302
@babel/plugin-transform-classes Diagnostics (10)
-
Largest Contentful Paint image was lazily loaded
View Experiment!Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint. Learn more.
Element li > div.Card__CardFigure-sc-1o2nsas-0 > div.Card__CardFigureImageContainer-sc-1o2nsas-1 > img.mMx2LUixlnN_Fu45JpFB Serve static assets with an efficient cache policy
14 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more.
URL Cache TTL (ms) Transfer Size (bytes) https://pixel-static.spotify.com/sync.min.js 0 2059 https://sb.scorecardresearch.com/internal-c2/default/cs.js 0 358 https://www.facebook.com/tr/?id=1483047915331997&ev=PageView&dl=https%3A%2F%2Fopen.spotify.com%2F&rl=&if=false&ts=1671033361910&sw=1366&sh=768&v=2.9.89&r=stable&a=tmSimo-GTM-WebTemplate&ec=0&o=30&fbp=fb.1.1671033361909.1761150096&it=1671033359178&coo=false&dpo=LDU&dpoco=0&dpost=0&tm=1&exp=a1&rqm=GET 0 185 https://p.adsymptotic.com/d/px/?_pid=10339&_psign=f79776ac7a290c8b1b2a94bd7ad5f0ce&_puuid=2ba7f1e6cb6b152123596d8669ba1ae71454b452425551d6c33b966a5c68d9cf791426b5417dce21&_pu&_expected_cookie=cc2f9394f7ea6427f4f8cbf433822b07 0 141 https://www.facebook.com/tr/?id=1483047915331997&ev=Microdata&dl=https%3A%2F%2Fopen.spotify.com%2F&rl=&if=false&ts=1671033362413&cd[DataLayer]=%5B%5D&cd[Meta]=%7B%22title%22%3A%22Spotify%20%E2%80%93%20Mobile%20Web%20Player%22%2C%22meta%3Adescription%22%3A%22Spotify%20is%20a%20digital%20music%20service%20that%20gives%20you%20access%20to%20millions%20of%20songs.%22%7D&cd[OpenGraph]=%7B%22og%3Asite_name%22%3A%22Spotify%22%2C%22og%3Atitle%22%3A%22Spotify%20-%20Web%20Player%3A%20Music%20for%20everyone%22%2C%22og%3Adescription%22%3A%22Spotify%20is%20a%20digital%20music%20service%20that%20gives%20you%20access%20to%20millions%20of%20songs.%22%2C%22og%3Aurl%22%3A%22https%3A%2F%2Fopen.spotify.com%2F%22%2C%22og%3Aimage%22%3A%22https%3A%2F%2Fopen.spotifycdn.com%2Fcdn%2Fimages%2Fog-image.548bc4b7.png%22%2C%22og%3Atype%22%3A%22website%22%7D&cd[Schema.org]=%5B%5D&cd[JSON-LD]=%5B%5D&sw=1366&sh=768&v=2.9.89&r=stable&a=tmSimo-GTM-WebTemplate&ec=1&o=30&fbp=fb.1.1671033361909.1761150096&it=1671033359178&coo=false&dpo=LDU&dpoco=0&dpost=0&es=automatic&tm=3&exp=b2&rqm=GET 0 18 https://connect.facebook.net/signals/config/1483047915331997?v=2.9.89&r=stable 1200000 86927 https://connect.facebook.net/en_US/fbevents.js 1200000 28194 https://connect.facebook.net/signals/plugins/identity.js?v=2.9.89 1200000 20762 https://www.google-analytics.com/analytics.js 7200000 20254 https://s.pinimg.com/ct/core.js 7200000 1361 https://cdn.cookielaw.org/scripttemplates/6.26.0/otBannerSdk.js 86400000 77992 https://cdn.cookielaw.org/scripttemplates/otSDKStub.js 86400000 7698 https://cdn.speedcurve.com/js/lux.js?id=4310329957 604800000 522 https://s.pinimg.com/ct/lib/main.9a94ee76.js 1209600000 20997 Registers an
unload
listenerThe
unload
event does not fire reliably and listening for it can prevent browser optimizations like the Back-Forward Cache. Usepagehide
orvisibilitychange
events instead. Learn moreSource - URL: https://open.spotifycdn.com/cdn/build/mobile-web-player/vendor~mobile-web-player.ab2b0eb5.js
- Line: 0
- Column: 181694
- URL: https://open.spotifycdn.com/cdn/build/mobile-web-player/vendor~mobile-web-player.ab2b0eb5.js
- Line: 0
- Column: 61400
Avoid chaining critical requests
13 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. Learn more.
-
https://open.spotify.com/
6kb
- https://open.spotifycdn.com/cdn/build/mobile-web-player/mwp-dialog-container.ae962bd6.css 3kb
- https://open.spotifycdn.com/cdn/build/mobile-web-player/mwp-context-menu-container.b615361a.css 1kb
- https://open.spotifycdn.com/cdn/build/mobile-web-player/mwp-artist-page.8711c8e6.css 1kb
- https://open.spotifycdn.com/cdn/build/mobile-web-player/mwp-connect-view-container.22745ba4.css 1kb
- https://open.spotifycdn.com/cdn/build/mobile-web-player/mwp-now-playing-view.b27b04bb.css 2kb
- https://open.spotifycdn.com/cdn/build/mobile-web-player/mwp-home.6d4808e0.css 2kb
- https://open.spotifycdn.com/cdn/build/mobile-web-player/mwp-genre-view.3cdef6ea.css 2kb
- https://open.spotifycdn.com/cdn/build/mobile-web-player/mwp-user-profile.05cb37ed.css 1kb
- https://open.spotifycdn.com/cdn/build/mobile-web-player/mwp-search-results.ba0b9758.css 2kb
- https://open.spotifycdn.com/cdn/build/mobile-web-player/mwp-search-landing.83297305.css 1kb
- https://open.spotifycdn.com/cdn/build/mobile-web-player/mobile-web-player.447f22d4.css 27kb
- https://open.spotifycdn.com/cdn/build/mobile-web-player/mobile-web-player.6a62f7b6.js 326kb
- https://open.spotifycdn.com/cdn/build/mobile-web-player/vendor~mobile-web-player.ab2b0eb5.js 358kb
Avoid long main-thread tasks
4 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. Learn more
URL Start Time (ms) Duration (ms) https://open.spotifycdn.com/cdn/build/mobile-web-player/vendor~mobile-web-player.ab2b0eb5.js 8227 234 https://open.spotifycdn.com/cdn/build/mobile-web-player/vendor~mobile-web-player.ab2b0eb5.js 12790 89 https://open.spotifycdn.com/cdn/build/mobile-web-player/mobile-web-player.6a62f7b6.js 8469 88 https://cdn.cookielaw.org/scripttemplates/6.26.0/otBannerSdk.js 12688 59 Largest Contentful Paint element
1 element found
This is the largest contentful element painted within the viewport. Learn More
Element li > div.Card__CardFigure-sc-1o2nsas-0 > div.Card__CardFigureImageContainer-sc-1o2nsas-1 > img.mMx2LUixlnN_Fu45JpFB Avoid large layout shifts
1 element found
These DOM elements contribute most to the CLS of the page.
Element CLS Contribution body.mobile-web-player > div#onetrust-consent-sdk > div#onetrust-banner-sdk 0 Avoid non-composited animations
1 animated element found
Animations which are not composited can be janky and increase CLS. Learn more
Element Name body.mobile-web-player > div#onetrust-consent-sdk > div#onetrust-banner-sdk Failure Reason Animation Unsupported CSS Property: bottom slide-down-custom User Timing marks and measures
3 user timings
Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences. Learn more.
Name Type Start Time (ms) Duration (ms) playback_load_start Mark 8470 snaptr Mark 14359 snaptr Mark 15625 Keep request counts low and transfer sizes small
139 requests • 1,894 KiB
To set budgets for the quantity and size of page resources, add a budget.json file. Learn more.
Resource Type Requests Transfer Size (bytes) Total 139 1939599 Script 31 1289367 Font 5 406290 Other 72 129725 Image 16 63597 Stylesheet 11 42934 Document 4 7686 Media 0 0 Third-party 116 1921327 Passed Audits (24)
-
Initial server response time was short
Estimated savings 0.23 s
Keep the server response time for the main document short because all other requests depend on it. Learn more.
URL Time Spent (ms) https://open.spotify.com/ 328 Avoid multiple page redirects
Redirects introduce additional delays before the page can be loaded. Learn more.
Preconnect to required origins
Consider adding
preconnect
ordns-prefetch
resource hints to establish early connections to important third-party origins. Learn more.Preload key requests
Consider using
<link rel=preload>
to prioritize fetching resources that are currently requested later in page load. Learn more.All text remains visible during webfont loads
Leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading. Learn more.
Minify JavaScript
Minifying JavaScript files can reduce payload sizes and script parse time. Learn more.
Minify CSS
Minifying CSS files can reduce network payload sizes. Learn more.
Minimize third-party usage
Third-party code blocked the main thread for 0 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn more.
Third-Party Transfer Size (bytes) Main-Thread Blocking Time (ms) Google Tag Manager 170851 0 URL Transfer Size Blocking Time https://www.googletagmanager.com/gtm.js?id=GTM-PZHN3VD 94368 0 https://www.googletagmanager.com/gtag/js?id=G-ZWG1NSHWD8&l=dataLayer&cx=c 76483 0 Facebook 136086 0 URL Transfer Size Blocking Time https://connect.facebook.net/signals/config/1483047915331997?v=2.9.89&r=stable 86927 0 https://connect.facebook.net/en_US/fbevents.js 28194 0 https://connect.facebook.net/signals/plugins/identity.js?v=2.9.89 20762 0 Optanon 127136 0 URL Transfer Size Blocking Time https://cdn.cookielaw.org/scripttemplates/6.26.0/otBannerSdk.js 77992 0 https://cdn.cookielaw.org/consent/50da44be-0564-43df-b139-329aedcf267b/4113b8c4-840b-4bd0-8a77-7ff30a9f4b4d/en.json 18977 0 https://cdn.cookielaw.org/scripttemplates/6.26.0/assets/v2/otPcCenter.json 11754 0 https://cdn.cookielaw.org/scripttemplates/otSDKStub.js 7698 0 Other resources 10715 0 Fastly Insights 49739 0 URL Transfer Size Blocking Time https://fastly-insights.com/api/v1/config/040e3997-282c-4275-ba9b-a406ce78b133 19240 0 https://www.fastly-insights.com/b?k=040e3997-282c-4275-ba9b-a406ce78b133&s=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpYXQiOjE2NzEwMzMzNjAsImV4cCI6MTY3MTAzMzQyMCwibmJmIjoxNjcxMDMzMzYwLCJzdWIiOiIwNDBlMzk5Ny0yODJjLTQyNzUtYmE5Yi1hNDA2Y2U3OGIxMzMifQ.y4546-rE11L3yJfIG52g_1hN08T7Vcfg-wliUsdqmz0 8200 0 https://www.fastly-insights.com/insights.js?k=040e3997-282c-4275-ba9b-a406ce78b133&dnt=1 8045 0 Other resources 14254 0 Google Optimize 46919 0 URL Transfer Size Blocking Time https://www.googleoptimize.com/optimize.js?id=GTM-W53X654 46919 0 Pinterest 23615 0 URL Transfer Size Blocking Time https://s.pinimg.com/ct/lib/main.9a94ee76.js 20997 0 Google Analytics 20468 0 URL Transfer Size Blocking Time https://www.google-analytics.com/analytics.js 20254 0 Twitter Online Conversion Tracking 16067 0 URL Transfer Size Blocking Time https://static.ads-twitter.com/uwt.js 15674 0 Snapchat 14739 0 URL Transfer Size Blocking Time https://sc-static.net/scevent.min.js 13765 0 Scorecard Research 1183 0 LiveRamp IdentityLink 837 0 LinkedIn Ads 809 0 Tapad 714 0 Arbor 633 0 Adobe Tag Manager 623 0 SpeedCurve LUX 522 0 Other Google APIs/SDKs 501 0 Google/Doubleclick Ads 440 0 Twitter Short URL 376 0 Qualaroo 0 0 Lazy load third-party resources with facades
Some third-party embeds can be lazy loaded. Consider replacing them with a facade until they are required. Learn more.
JavaScript execution time
0.7 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn more.
URL Total CPU Time (ms) Script Evaluation (ms) Script Parse (ms) Unattributable 470 48 0 https://open.spotifycdn.com/cdn/build/mobile-web-player/vendor~mobile-web-player.ab2b0eb5.js 443 396 22 https://open.spotify.com/ 214 3 0 https://open.spotifycdn.com/cdn/build/mobile-web-player/mobile-web-player.6a62f7b6.js 115 90 23 https://www.googletagmanager.com/gtm.js?id=GTM-PZHN3VD 83 77 4 https://cdn.cookielaw.org/scripttemplates/6.26.0/otBannerSdk.js 68 50 5 Minimizes main-thread work
1.7 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn more
Category Time Spent (ms) Script Evaluation 894 Other 471 Rendering 107 Script Parsing & Compilation 84 Style & Layout 70 Garbage Collection 49 Parse HTML & CSS 18 Avoids an excessive DOM size
508 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows. Learn more.
Statistic Element Value Total DOM Elements 508 Maximum DOM Depth button#preview-menu-button > span.IconWrapper__Wrapper-sc-16usrgb-0 > svg.Svg-sc-ytk21e-0 > path 14 Maximum Child Elements body.mobile-web-player 13 Remove duplicate modules in JavaScript bundles
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Has a
<meta name="viewport">
tag withwidth
orinitial-scale
A
<meta name="viewport">
not only optimizes your app for mobile screen sizes, but also prevents a 300 millisecond delay to user input. Learn more.Preload Largest Contentful Paint image
Preload the image used by the LCP element in order to improve your LCP time. Learn more.
URL Potential Savings (ms) https://lite-images-i.scdn.co/image/ab67706f00000002c03728d7ade82b2a614d3e78 0 Use video formats for animated content
Large GIFs are inefficient for delivering animated content. Consider using MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF to save network bytes. Learn more
Avoids enormous network payloads
Total size was 1,894 KiB
Large network payloads cost users real money and are highly correlated with long load times. Learn more.
URL Transfer Size (bytes) https://open.spotifycdn.com/cdn/build/mobile-web-player/vendor~mobile-web-player.ab2b0eb5.js 367054 https://open.spotifycdn.com/cdn/build/mobile-web-player/mobile-web-player.6a62f7b6.js 333358 https://www.googletagmanager.com/gtm.js?id=GTM-PZHN3VD 94368 https://encore.scdn.co/fonts/CircularSp-Bold-fe1cfc14b7498b187c78fa72fb72d148.woff2 90127 https://encore.scdn.co/fonts/CircularSpTitle-Bold-2fbf72b606d7f0b0f771ea4956a8b4d6.woff2 87971 https://connect.facebook.net/signals/config/1483047915331997?v=2.9.89&r=stable 86927 https://encore.scdn.co/fonts/CircularSpTitle-Black-3f9afb402080d53345ca1850226ca724.woff2 86187 https://encore.scdn.co/fonts/CircularSp-Book-4eaffdf96f4c6f984686e93d5d9cb325.woff2 84630 https://cdn.cookielaw.org/scripttemplates/6.26.0/otBannerSdk.js 77992 https://www.googletagmanager.com/gtag/js?id=G-ZWG1NSHWD8&l=dataLayer&cx=c 76483 Image elements have explicit
width
andheight
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn more
Properly size images
Serve images that are appropriately-sized to save cellular data and improve load time. Learn more.
Defer offscreen images
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. Learn more.
Efficiently encode images
Optimized images load faster and consume less cellular data. Learn more.
Serve images in next-gen formats
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. Learn more.
Uses passive listeners to improve scrolling performance
Consider marking your touch and wheel event listeners as
passive
to improve your page's scroll performance. Learn more.Avoids
document.write()
For users on slow connections, external scripts dynamically injected via
document.write()
can delay page load by tens of seconds. Learn more.Accessibility 93
Best practices (1)
-
View Experiment![user-scalable="no"]
is used in the<meta name="viewport">
element or the[maximum-scale]
attribute is less than 5.Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more.
Failing Elements head > meta Fix any of the following:
maximum-scale on <meta> tag disables zooming on mobile devicesAdditional Items to Check Manually (10)
-
The page has a logical tab order
Tabbing through the page follows the visual layout. Users cannot focus elements that are offscreen. Learn more.
Interactive controls are keyboard focusable
Custom interactive controls are keyboard focusable and display a focus indicator. Learn more.
Interactive elements indicate their purpose and state
Interactive elements, such as links and buttons, should indicate their state and be distinguishable from non-interactive elements. Learn more.
The user's focus is directed to new content added to the page
If new content, such as a dialog, is added to the page, the user's focus is directed to it. Learn more.
User focus is not accidentally trapped in a region
A user can tab into and out of any control or region without accidentally trapping their focus. Learn more.
Custom controls have associated labels
Custom interactive controls have associated labels, provided by aria-label or aria-labelledby. Learn more.
Custom controls have ARIA roles
Custom interactive controls have appropriate ARIA roles. Learn more.
Visual order on the page follows DOM order
DOM order matches the visual order, improving navigation for assistive technology. Learn more.
Offscreen content is hidden from assistive technology
Offscreen content is hidden with display: none or aria-hidden=true. Learn more.
HTML5 landmark elements are used to improve navigation
Landmark elements (<main>, <nav>, etc.) are used to improve the keyboard navigation of the page for assistive technology.
Passed Audits (21)
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[aria-*]
attributes match their rolesEach ARIA
role
supports a specific subset ofaria-*
attributes. Mismatching these invalidates thearia-*
attributes. Learn more.[aria-hidden="true"]
is not present on the document<body>
Assistive technologies, like screen readers, work inconsistently when
aria-hidden="true"
is set on the document<body>
. Learn more.[aria-hidden="true"]
elements do not contain focusable descendentsFocusable descendents within an
[aria-hidden="true"]
element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn more.[role]
s have all required[aria-*]
attributesSome ARIA roles have required attributes that describe the state of the element to screen readers. Learn more.
[role]
values are validARIA roles must have valid values in order to perform their intended accessibility functions. Learn more.
[aria-*]
attributes have valid valuesAssistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more.
[aria-*]
attributes are valid and not misspelledAssistive technologies, like screen readers, can't interpret ARIA attributes with invalid names. Learn more.
Buttons have an accessible name
When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn more.
The page contains a heading, skip link, or landmark region
Adding ways to bypass repetitive content lets keyboard users navigate the page more efficiently. Learn more.
Background and foreground colors have a sufficient contrast ratio
Low-contrast text is difficult or impossible for many users to read. Learn more.
Document has a
<title>
elementThe title gives screen reader users an overview of the page, and search engine users rely on it heavily to determine if a page is relevant to their search. Learn more.
[id]
attributes on active, focusable elements are uniqueAll focusable elements must have a unique
id
to ensure that they're visible to assistive technologies. Learn more.ARIA IDs are unique
The value of an ARIA ID must be unique to prevent other instances from being overlooked by assistive technologies. Learn more.
Heading elements appear in a sequentially-descending order
Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more.
<html>
element has a[lang]
attributeIf a page doesn't specify a lang attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more.
<html>
element has a valid value for its[lang]
attributeSpecifying a valid BCP 47 language helps screen readers announce text properly. Learn more.
Image elements have
[alt]
attributesInformative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more.
Links have a discernible name
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn more.
Lists contain only
<li>
elements and script supporting elements (<script>
and<template>
).Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more.
List items (
<li>
) are contained within<ul>
or<ol>
parent elementsScreen readers require list items (
<li>
) to be contained within a parent<ul>
or<ol>
to be announced properly. Learn more.No element has a
[tabindex]
value greater than 0A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more.
Not Applicable (22)
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[accesskey]
values are uniqueAccess keys let users quickly focus a part of the page. For proper navigation, each access key must be unique. Learn more.
button
,link
, andmenuitem
elements have accessible namesWhen an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more.
ARIA input fields have accessible names
When an input field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more.
ARIA
meter
elements have accessible namesWhen an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more.
ARIA
progressbar
elements have accessible namesWhen a
progressbar
element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more.
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