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Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

42

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:52.03 source:map[column:130947 line:2 type:source-location url:https://www.sonos.com/_next/static/chunks/3528-22399f527ed2dbbd.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:21.463 source:map[column:18354 line:1995 type:source-location url:https://www.sonos.com/_next/static/chunks/6263-d99a2866003bbbe9.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB urlProvider:network]] map[reflowTime:37.189 source:map[column:50140 line:0 type:source-location url:https://www.sonos.com/_next/static/chunks/1210-2b9d571421197c9d.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB urlProvider:network]] map[reflowTime:4.936 source:map[column:25626 line:0 type:source-location url:https://www.sonos.com/_next/static/chunks/6186-2d88942abde18679.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB urlProvider:network]] map[reflowTime:4.005 source:map[column:25806 line:0 type:source-location url:https://www.sonos.com/_next/static/chunks/6186-2d88942abde18679.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB urlProvider:network]] map[reflowTime:1.478 source:map[column:34638 line:13 type:source-location url:https://www.sonos.com/_next/static/chunks/8173-d1d942783ce55267.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB urlProvider:network]] map[reflowTime:1.685 source:map[column:4877 line:0 type:source-location url:https://www.sonos.com/_next/static/chunks/1390-512f8e27594beb39.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB urlProvider:network]] map[reflowTime:2.335 source:map[column:636 line:29 type:source-location url:https://www.sonos.com/_next/static/chunks/1390-512f8e27594beb39.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB urlProvider:network]]]

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-VIDEO
nodeLabel: Your browser cannot play the provided video file.
path: 0,DIV,0,SECTION,0,DIV,0,DIV,1,DIV,0,VIDEO
selector: div.h-auto > div#_14e5a88dd5ca > div.relative > video.absolute
snippet: <video class="absolute w-full h-full object-cover" loop="" muted="" playsinline="" poster="https://media.sonos.com/images/znqtjj88/production/3eb08ef2fb4f262a6608c17…" preload="none" width="4" height="5" _type="sonosVideo" data-is-background="true" style="opacity:1;background-color:black">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
value: no origins were preconnected
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
t.contentsquare.net/uxa/0ad82fc9-ef51-4833-83db-2e9207f7b731.js900.0 s140.9 KiB
analytics.sonos.com/p.js502.0 s120.4 KiB
www.sonos.com/s3t4F/Mql/2NIV/Ba/uiwMzO/DOL3tmf6kGNhkzE1/QEQ-AQ/RlQ4d/xxzSxQB21600.0 s173.0 KiB
assets.sonos.com/optimizelyjs/3058550533.js120.0 s109.9 KiB
cdn.cookielaw.org/scripttemplates/202505.2.0/otBannerSdk.js86400.0 s119.2 KiB
js.appboycdn.com/web-sdk/6.1/braze.no-module.min.js14400.0 s63.0 KiB
scripts.postie.com/xpwmdbxr/lp.1.js0.0 ms27.8 KiB
assets.xgen.dev/sdk/releases/v1.2.3-beta.16/xgen-sdk.min.js0.0 ms19.9 KiB
js.adsrvr.org/up_loader.1.1.0.js0.0 ms12.5 KiB
www.sonos.com/s3t4F/Mql/2NIV/Ba/uiwMzO/btL3/GGsmAQ/CGw5N/h5cNmgp86400.0 s28.6 KiB
pixel.byspotify.com/ping.min.js3600.0 s10.3 KiB
cdn.cookielaw.org/logos/static/ot_company_logo.png86400.0 s19.2 KiB
assets.xgen.dev/js/eem4cxrciz6hws0zfp1i6yjzi5yxi40k/integrationHelpers.js0.0 ms4.5 KiB
cdn.cookielaw.org/scripttemplates/otSDKStub.js86400.0 s9.1 KiB
sneakpeek-1.s3.us-east-1.amazonaws.com/acquaint_b2b_chord.js0.0 ms3.0 KiB
s.pinimg.com/ct/lib/main.10d2511a.js1209600.0 s27.6 KiB
/w37htfhcq2/vendor/b438b2ba-e8de-42c1-938e-5fc1ebffe53b/l...60.0 s2.1 KiB
ct.pinterest.com/static/ct/token_create.js7200.0 s2.2 KiB
s.pinimg.com/ct/core.js7200.0 s2.1 KiB
assets.xgen.dev/js/eem4cxrciz6hws0zfp1i6yjzi5yxi40k/clientSdk.js0.0 ms1.4 KiB
assets.xgen.dev/js/eem4cxrciz6hws0zfp1i6yjzi5yxi40k/sdkIntegration.js0.0 ms1.2 KiB
/a4flkt7l2b/z9gd/b438b2ba-e8de-42c1-938e-5fc1ebffe53b/www...0.0 ms1.0 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg86400.0 s2.5 KiB
js.adsrvr.org/universal_pixel.js0.0 ms957 B
use.fontawesome.com/7f85a56ba4.css1800.0 s881 B
assets.xgen.dev/js/eem4cxrciz6hws0zfp1i6yjzi5yxi40k/gtmIntegration.js0.0 ms651 B
/config/com/3600a646-89ef-468e-9207-93ef7c0195aa.js?v=3.5...0.0 ms453 B
/w37htfhcq2/z9g/digibox.gif?c=1776901836095&h=www.sonos.c...0.0 ms451 B
www.sonos.com/s3t4F/Mql/2NIV/Ba/uiwMzO/btL3/GGsmAQ/VDE9Y/UNWC3dY86400.0 s1.1 KiB
/s3awjbnctc/custom_fonts/2d6938a5-5eb5-4aea-9bae-ae4e61cb...1382400.0 s529 B
/collect_idl?idl=&app_id=xpwmdbxr&page=www.sonos.com%2Fen...0.0 ms38 B
t.contentsquare.net/uxa/0ad82fc9-ef51-4833-83db-2e9207f7b731.js900.0 s0 B
/s3awjbnctc/custom_fonts/2d6938a5-5eb5-4aea-9bae-ae4e61cb...1382400.0 s0 B

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
Person riding a bicycle with a black Sonos Play speaker in the front basket div > div#_0108f2b45991 > figure.relative > img
/images/znqtjj88/production/effaa2a79865dd4b84e2a471da38e...86.4 KiB48.4 KiB
Person handing a white Sonos Play speaker over a balcony down to a friend section.order-none > div#_b13b7a50b991 > figure.relative > img
/images/znqtjj88/production/0f65872c89f9cc87473f175f7518a...63.4 KiB13.2 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 768 ms
URLTime Spent
sonos.com/768 ms
www.sonos.com/en/home0.0 ms

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 150 ms 47.8 KiB
URLTransfer SizeEst Savings
/_next/static/css/4be42307400234d4.css?dpl=dpl_HR77npGmmW...30.9 KiB26.9 KiB
21.2 KiB20.9 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 150 ms 992.9 KiB
URLTransfer SizeEst Savings
t.contentsquare.net/uxa/0ad82fc9-ef51-4833-83db-2e9207f7b731.js140.4 KiB103.2 KiB
t.contentsquare.net/uxa/0ad82fc9-ef51-4833-83db-2e9207f7b731.js140.4 KiB102.5 KiB
analytics.sonos.com/p.js119.9 KiB83.3 KiB
cdn.cookielaw.org/scripttemplates/202505.2.0/otBannerSdk.js119.0 KiB66.6 KiB
www.googletagmanager.com/gtag/destination?id=DC-13670001&cx=c&gtm=4e64k1131.0 KiB61.8 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js120.8 KiB61.4 KiB
www.googletagmanager.com/gtag/js?id=G-DFV9V8HH8T&cx=c&gtm=4e64k1175.8 KiB58.1 KiB
/w37htfhcq2/vendor/b438b2ba-e8de-42c1-938e-5fc1ebffe53b/m...116.2 KiB57.4 KiB
www.googletagmanager.com/gtag/js?id=DC-4273294&cx=c&gtm=4e64k1129.2 KiB56.2 KiB
www.googletagmanager.com/gtm.js?id=GTM-WRJKFWM200.6 KiB51.8 KiB
/w37htfhcq2/vendor/b438b2ba-e8de-42c1-938e-5fc1ebffe53b/l...68.1 KiB43.2 KiB
/w37htfhcq2/vendor/b438b2ba-e8de-42c1-938e-5fc1ebffe53b/l...68.1 KiB43.2 KiB
www.sonos.com/s3t4F/Mql/2NIV/Ba/uiwMzO/DOL3tmf6kGNhkzE1/QEQ-AQ/RlQ4d/xxzSxQB172.0 KiB36.7 KiB
/_next/static/chunks/8173-d1d942783ce55267.js?dpl=dpl_HR7...53.8 KiB35.0 KiB
assets.sonos.com/optimizelyjs/3058550533.js109.3 KiB33.7 KiB
js.appboycdn.com/web-sdk/6.1/braze.no-module.min.js62.6 KiB33.2 KiB
/_next/static/chunks/3528-22399f527ed2dbbd.js?dpl=dpl_HR7...51.1 KiB23.5 KiB
/w37htfhcq2/vendor/b438b2ba-e8de-42c1-938e-5fc1ebffe53b/c...50.3 KiB21.7 KiB
/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl...61.6 KiB20.3 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
/_next/static/chunks/3528-22399f527ed2dbbd.js?dpl=dpl_HR7...4.9 s4.3 s28 ms
Unattributable1.7 s189 ms0.0 ms
www.googletagmanager.com/gtm.js?id=GTM-WRJKFWM1.3 s1.1 s111 ms
/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl...1.2 s828 ms25 ms
www.sonos.com/s3t4F/Mql/2NIV/Ba/uiwMzO/DOL3tmf6kGNhkzE1/QEQ-AQ/RlQ4d/xxzSxQB1.0 s944 ms72 ms
www.sonos.com/en/home1.0 s28 ms100 ms
/w37htfhcq2/vendor/b438b2ba-e8de-42c1-938e-5fc1ebffe53b/m...787 ms449 ms57 ms
www.googletagmanager.com/gtag/destination?id=DC-13670001&cx=c&gtm=4e64k1765 ms696 ms48 ms
/w37htfhcq2/vendor/b438b2ba-e8de-42c1-938e-5fc1ebffe53b/c...716 ms568 ms48 ms
assets.sonos.com/optimizelyjs/3058550533.js637 ms560 ms67 ms
t.contentsquare.net/uxa/0ad82fc9-ef51-4833-83db-2e9207f7b731.js570 ms335 ms230 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js451 ms347 ms81 ms
www.googletagmanager.com/gtag/js?id=G-DFV9V8HH8T&cx=c&gtm=4e64k1396 ms322 ms71 ms
cdn.cookielaw.org/scripttemplates/202505.2.0/otBannerSdk.js360 ms202 ms66 ms
/_next/static/chunks/6263-d99a2866003bbbe9.js?dpl=dpl_HR7...354 ms337 ms16 ms
sc-static.net/scevent.min.js319 ms290 ms12 ms
/_next/static/chunks/8378-64e5e3bca65a1f0d.js?dpl=dpl_HR7...293 ms87 ms24 ms
www.googletagmanager.com/gtag/js?id=DC-4273294&cx=c&gtm=4e64k1223 ms173 ms49 ms
/_next/static/chunks/1390-512f8e27594beb39.js?dpl=dpl_HR7...199 ms82 ms13 ms
www.sonos.com/s3t4F/Mql/2NIV/Ba/uiwMzO/btL3/GGsmAQ/CGw5N/h5cNmgp186 ms98 ms10 ms
s.pinimg.com/ct/lib/main.10d2511a.js180 ms162 ms13 ms
js.appboycdn.com/web-sdk/6.1/braze.no-module.min.js175 ms128 ms33 ms
analytics.sonos.com/p.js174 ms86 ms88 ms
/_next/static/chunks/1210-2b9d571421197c9d.js?dpl=dpl_HR7...150 ms142 ms7.9 ms
/w37htfhcq2/vendor/b438b2ba-e8de-42c1-938e-5fc1ebffe53b/l...150 ms17 ms131 ms
scripts.postie.com/xpwmdbxr/lp.1.js150 ms132 ms11 ms
/w37htfhcq2/vendor/b438b2ba-e8de-42c1-938e-5fc1ebffe53b/l...135 ms90 ms15 ms
/_next/static/chunks/webpack-c8cc8cb8681497a4.js?dpl=dpl_...105 ms95 ms6.3 ms
/_next/static/chunks/middleware.13837342f39c4ced.js?dpl=d...88 ms80 ms4.5 ms
assets.xgen.dev/sdk/releases/v1.2.3-beta.16/xgen-sdk.min.js74 ms68 ms0.5 ms
pixel.byspotify.com/ping.min.js67 ms46 ms6.0 ms
analytics.tiktok.com/i18n/pixel/static/identify_5cff1caf.js65 ms44 ms21 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation13.2 s
Other2.6 s
Script Parsing & Compilation1.6 s
Style & Layout1.1 s
Parse HTML & CSS448 ms
Garbage Collection346 ms
Rendering155 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
Pages with cache-control:no-store header cannot enter back/forward cache.Actionable
The page has an unload handler in a sub frame.Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.Not actionable

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 47.9 KiB
URLTransfer SizeEst Savings
analytics.sonos.com/p.js120.0 KiB47.9 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
/videos/znqtjj88/production/ce86ce5cc72c2fcde4497c99877de...1.4 MiB
www.googletagmanager.com/gtm.js?id=GTM-WRJKFWM200.9 KiB
www.googletagmanager.com/gtag/js?id=G-DFV9V8HH8T&cx=c&gtm=4e64k1175.8 KiB
www.sonos.com/s3t4F/Mql/2NIV/Ba/uiwMzO/DOL3tmf6kGNhkzE1/QEQ-AQ/RlQ4d/xxzSxQB173.0 KiB
t.contentsquare.net/uxa/0ad82fc9-ef51-4833-83db-2e9207f7b731.js140.9 KiB
www.googletagmanager.com/gtag/destination?id=DC-13670001&cx=c&gtm=4e64k1131.1 KiB
www.googletagmanager.com/gtag/js?id=DC-4273294&cx=c&gtm=4e64k1129.3 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js121.4 KiB
analytics.sonos.com/p.js120.4 KiB
cdn.cookielaw.org/scripttemplates/202505.2.0/otBannerSdk.js119.2 KiB

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Layout shift culprits
●Optimize DOM size
●Font display
●LCP breakdown
●Modern HTTP
●Render blocking requests
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 7 user timings
●Avoid long main-thread tasks 20 long tasks found
●Image elements have explicit `width` and `height`
●Network Requests
●Network Round Trip Times 250 ms
●Server Backend Latencies 270 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 520 ms
●Avoid large layout shifts 1 layout shift found
○INP breakdown
○Avoid non-composited animations
86

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Names and labels

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 how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.basis-full > div#q3fy26-earth-day-refurb > div.w-2 > button.flex div.basis-full > div#q3fy26-earth-day-refurb > div.w-2 > button.flex
Search nav#right > ul.inline-flex > li.flex > button.flex
Menu nav#right > ul.inline-flex > li.flex > button.flex

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 how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.flex > ul.flex > li > a div.flex > ul.flex > li > a
div.flex > ul.flex > li > a div.flex > ul.flex > li > a
div.flex > ul.flex > li > a div.flex > ul.flex > li > a
div.flex > ul.flex > li > a div.flex > ul.flex > li > a

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Navigation

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 about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Astonishingly clear section.lg:order-none > section.w-full > div > h3.tw-typography-h3
4000+ div > div.border > div.flex > h5.block
Mix and match speakers section.order-none > section.w-full > div.mb-4 > h5.block
Sets nav.flex > div.flex > a.flex > h6.block

These are opportunities to improve keyboard navigation in your application.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Home body.has-cookie-banner > header.tw-header-nav-spacing > nav#left > ul.inline-flex
My Account body.has-cookie-banner > header.tw-header-nav-spacing > nav#right > ul.inline-flex

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Image elements have `[alt]` attributes
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Skip links are focusable.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●`<video>` elements contain a `<track>` element with `[kind="captions"]`
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○Form elements have associated labels
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Elements with visible text labels have matching accessible names.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
77

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Unload event listeners are deprecated and will be removed.
/w37htfhcq2/vendor/b438b2ba-e8de-42c1-938e-5fc1ebffe53b/m...
AttributionReporting
www.sonos.com/s3t4F/Mql/2NIV/Ba/uiwMzO/btL3/GGsmAQ/CGw5N/h5cNmgp

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
/_next/static/chunks/6186-2d88942abde18679.js?dpl=dpl_HR7...
BrazeBanner: Error handling banner update: TypeError: t.getBooleanProperty is not a function at https://www.sonos.com/_next/static/chunks/6186-2d88942abde18679.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:426 at https://www.sonos.com/_next/static/chunks/6186-2d88942abde18679.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:599 at iy (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:92247) at i8 (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:102314) at uc (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:115205) at i8 (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:102845) at uc (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:115205) at i8 (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:102845) at uc (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:115205) at i8 (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:102301)
/_next/static/chunks/6186-2d88942abde18679.js?dpl=dpl_HR7...
BrazeBanner: Error handling banner update: TypeError: t.getBooleanProperty is not a function at https://www.sonos.com/_next/static/chunks/6186-2d88942abde18679.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:426 at https://www.sonos.com/_next/static/chunks/6186-2d88942abde18679.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:599 at iy (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:92247) at i8 (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:102314) at uc (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:115205) at i8 (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:104534) at uc (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:115205) at i8 (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:102301) at uc (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:115205) at i8 (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:102301)
/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl...
Error: Minified React error #418; visit https://react.dev/errors/418?args[]=HTML&args[]= for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at rX (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:36657) at is (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:87558) at sp (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:128029) at https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:122919 at sn (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:123020) at sQ (https://www.sonos.com/_next/static/chunks/61b5e853-8430af891c2cc329.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:1:149408) at MessagePort.M (https://www.sonos.com/_next/static/chunks/3528-22399f527ed2dbbd.js?dpl=dpl_HR77npGmmWfDQznR71rQzE97oiSB:2:131186)
www.sonos.com/api/my-account/get-subscription-data
Failed to load resource: the server responded with a status of 401 ()
js.appboycdn.com/web-sdk/6.1/braze.no-module.min.js line 339, col 149
Uncaught TypeError: 'caller', 'callee', and 'arguments' properties may not be accessed on strict mode functions or the arguments objects for calls to them

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
www.sonos.com/s3t4F/Mql/2NIV/Ba/uiwMzO/DOL3tmf6kGNhkzE1/QEQ-AQ/RlQ4d/xxzSxQB
analytics.sonos.com/p.js
s.pinimg.com/ct/lib/main.10d2511a.jss.pinimg.com/ct/lib/main.10d2511a.js.map
s.pinimg.com/ct/core.jss.pinimg.com/ct/core.js.map
ct.pinterest.com/static/ct/token_create.jsct.pinterest.com/static/ct/token_create.js.map
●Uses HTTPS
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
○Detected JavaScript libraries
92

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
www.sonos.com/en/controller-appLearn more
www.sonos.com/en/sonos-radioLearn more
www.sonos.com/en/controller-appLearn more
www.sonos.com/legal/privacyMore information

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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