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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.

40

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.

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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:119.485 source:map[type:text value:[unattributed]]]]

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
AI training & RAG with Oxylabs div#use-cases-tab-AI training & RAG > div.dark > div.flex > img.max-h-[272px]
/_next/image?url=https%3A%2F%2Foxylabs.io%2Foxylabs-web%2...95.6 KiB82.2 KiB
Oxylabs hero animation div.max-w-container-content > div.grid > div.h-full > img.block
/_next/image?url=https%3A%2F%2Foxylabs.io%2Foxylabs-web%2...45.8 KiB35.0 KiB

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
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
/ESWWebChatDeployment1744198927760/assets/styles/salesfor...60.0 s101.8 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.4 KiB
sleeknotestaticcontent.sleeknote.com/production/package-core-boot.js60.0 s45.1 KiB
www.clickcease.com/monitor/stat.js0.0 ms43.6 KiB
/signals/config/2639737263043570?v=2.9.298&r=stable&domai...1200.0 s44.4 KiB
us-assets.i.posthog.com/static/posthog-recorder.js?v=1.249.414400.0 s50.9 KiB
/uc.js?cbid=21313ba0-33cd-482f-aa0b-0f6e1a177bf6&consentm...1031.0 s35.7 KiB
goforce.my.site.com/ESWWebChatDeployment1744198927760/assets/js/bootstrap.min.js30.0 s26.4 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
scripts.clarity.ms/0.8.60-beta/clarity.js86400.0 s25.0 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
sleeknotestaticcontent.sleeknote.com/production/package-tracker.js60.0 s6.1 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...86400.0 s10.7 KiB
us-assets.i.posthog.com/static/exception-autocapture.js?v=1.249.4300.0 s4.3 KiB
us-assets.i.posthog.com/static/dead-clicks-autocapture.js?v=1.249.414400.0 s5.2 KiB
sleeknotestaticcontent.sleeknote.com/core.js#SleekNote60.0 s3.1 KiB
/ESWWebChatDeployment1744198927760/assets/styles/bootstra...60.0 s3.0 KiB
sleeknotecustomerscripts.sleeknote.com/39950.js60.0 s2.8 KiB
goforce.my.site.com/ESWWebChatDeployment1744198927760/assets/js/inert.min.js30.0 s2.8 KiB
rum.uptime.com/static/rum/compiled/v2/rum.js900.0 s2.3 KiB
/ESWWebChatDeployment1744198927760/assets/js/sitecontext....30.0 s1.6 KiB
/array/phc_ihPiFOFvwpqvcFbrwPsgQrbiPU0gurCdYpKenU9ykwM/co...300.0 s993 B
/collect?v=2&fmt=js&pid=1314820%2C524193&time=17763598843...0.0 ms911 B
/rp.gif?ts=1776359884308&id=a2_flp3gq7kg91v&event=PageVis...0.0 ms666 B
/ESWWebChatDeployment1744198927760/assets/styles/embedded...29.0 s550 B
/ESWWebChatDeployment1744198927760/webruntime/component/2...2249975.0 s2.0 KiB
/tr/?id=2639737263043570&ev=PageView&dl=https%3A%2F%2Foxy...0.0 ms16 B
public-files.oxylabs.io/website/homepage-hero-video.mp43600.0 s0 B
public-files.oxylabs.io/website/homepage-hero-video.mp43600.0 s0 B

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

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

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.

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 Evaluation27.4 s
Other4.8 s
Style & Layout1.2 s
Rendering870 ms
Script Parsing & Compilation524 ms
Garbage Collection382 ms
Parse HTML & CSS251 ms

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: 0.0 ms 33.5 KiB
URLTransfer SizeEst Savings
oxylabs.io/_next/static/css/af9ec14d2bab9445.css31.3 KiB22.0 KiB
13.5 KiB11.5 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.

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
Pulitzer Center, journalism nonprofit div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5N2OvxEdbNPEKH_Pulitzer-centerlogo.svg
Global Witness, anti-corruption NGO div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5Nl-vxEdbNPEJy_global-witnesslogo.svg
Pulitzer Center, journalism nonprofit div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5N2OvxEdbNPEKH_Pulitzer-centerlogo.svg
Global Witness, anti-corruption NGO div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5Nl-vxEdbNPEJy_global-witnesslogo.svg
Pulitzer Center, journalism nonprofit div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5N2OvxEdbNPEKH_Pulitzer-centerlogo.svg
Global Witness, anti-corruption NGO div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5Nl-vxEdbNPEJy_global-witnesslogo.svg
Morningscore, SEO platform div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NyevxEdbNPEKF_Morningscorelogo.svg
Morningscore, SEO platform div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NyevxEdbNPEKF_Morningscorelogo.svg
Morningscore, SEO platform div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NyevxEdbNPEKF_Morningscorelogo.svg
Morningscore, SEO platform div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NyevxEdbNPEKF_Morningscorelogo.svg
Morningscore, SEO platform div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NyevxEdbNPEKF_Morningscorelogo.svg
Morningscore, SEO platform div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NyevxEdbNPEKF_Morningscorelogo.svg
Rightlander, affiliate marketing platform div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5N5evxEdbNPEKN_Rightlanderlogo.svg
Rightlander, affiliate marketing platform div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5N5evxEdbNPEKN_Rightlanderlogo.svg
Rightlander, affiliate marketing platform div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5N5evxEdbNPEKN_Rightlanderlogo.svg
Bellingcat, investigative journalism div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5J-OvxEdbNPEFe_Bellingcatlogo.svg
Bellingcat, investigative journalism div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5J-OvxEdbNPEFe_Bellingcatlogo.svg
Bellingcat, investigative journalism div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5J-OvxEdbNPEFe_Bellingcatlogo.svg
Conductor, SEO and content marketing div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NSOvxEdbNPEJb_Conductorlogo.svg
Conductor, SEO and content marketing div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NSOvxEdbNPEJb_Conductorlogo.svg
Conductor, SEO and content marketing div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NSOvxEdbNPEJb_Conductorlogo.svg
European comission div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/acFVM5GXnQHGY3JU_european-commision.svg
European comission div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/acFVM5GXnQHGY3JU_european-commision.svg
European comission div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/acFVM5GXnQHGY3JU_european-commision.svg
Crawly, web scraping div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NaevxEdbNPEJn_Crawlylogo.svg
Debunk, fact-checking div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NeuvxEdbNPEJq_Debunklogo.svg
Crawly, web scraping div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NaevxEdbNPEJn_Crawlylogo.svg
Debunk, fact-checking div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NeuvxEdbNPEJq_Debunklogo.svg
Crawly, web scraping div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NaevxEdbNPEJn_Crawlylogo.svg
Debunk, fact-checking div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NeuvxEdbNPEJq_Debunklogo.svg
Stanford University div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5J2uvxEdbNPEFW_Stanfordlogo.svg
Stanford University div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5J2uvxEdbNPEFW_Stanfordlogo.svg
Stanford University div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5J2uvxEdbNPEFW_Stanfordlogo.svg
Stanford University div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5J2uvxEdbNPEFW_Stanfordlogo.svg
Stanford University div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5J2uvxEdbNPEFW_Stanfordlogo.svg
Stanford University div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5J2uvxEdbNPEFW_Stanfordlogo.svg
Boltive, brand safety div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NN-vxEdbNPEJV_Boltivelogo.svg
Trivago, travel and hotel search div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5Nu-vxEdbNPEJ-_trivagologo.svg
Boltive, brand safety div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NN-vxEdbNPEJV_Boltivelogo.svg
Trivago, travel and hotel search div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5Nu-vxEdbNPEJ-_trivagologo.svg
Boltive, brand safety div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NN-vxEdbNPEJV_Boltivelogo.svg
Trivago, travel and hotel search div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5Nu-vxEdbNPEJ-_trivagologo.svg
Wiser, e-commerce intelligence div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5KBOvxEdbNPEFi_Wiserlogo.svg
Wiser, e-commerce intelligence div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5KBOvxEdbNPEFi_Wiserlogo.svg
Wiser, e-commerce intelligence div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5KBOvxEdbNPEFi_Wiserlogo.svg
Forbes, business and media div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5KF-vxEdbNPEFw_Forbeslogo.svg
Forbes, business and media div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5KF-vxEdbNPEFw_Forbeslogo.svg
Forbes, business and media div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5KF-vxEdbNPEFw_Forbeslogo.svg
Zulu5, data intelligence platform div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5J6uvxEdbNPEFb_Zulu5logo.svg
SEON, fraud prevention div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5KKevxEdbNPEF3_SEONlogo.svg
Zulu5, data intelligence platform div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5J6uvxEdbNPEFb_Zulu5logo.svg
SEON, fraud prevention div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5KKevxEdbNPEF3_SEONlogo.svg
Zulu5, data intelligence platform div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5J6uvxEdbNPEFb_Zulu5logo.svg
SEON, fraud prevention div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5KKevxEdbNPEF3_SEONlogo.svg
ICIJ, International Consortium of Investigative Journalists div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NpuvxEdbNPEJ6_ICIJlogo.svg
ICIJ, International Consortium of Investigative Journalists div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NpuvxEdbNPEJ6_ICIJlogo.svg
ICIJ, International Consortium of Investigative Journalists div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5NpuvxEdbNPEJ6_ICIJlogo.svg
P2S - Proxy Solutions div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5Ni-vxEdbNPEJt_P2Slogo.svg
P2S - Proxy Solutions div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5Ni-vxEdbNPEJt_P2Slogo.svg
P2S - Proxy Solutions div.grid > div.relative > div.flex > img.h-[28px]
oxylabs.io/prismic_resources/Z_5Ni-vxEdbNPEJt_P2Slogo.svg

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

Layout shift culprits
Document request latency
Optimize DOM size
Font display
LCP breakdown
Modern HTTP
Render blocking requests
Optimize viewport for mobile
Minify CSS
Minify JavaScript
User Timing marks and measures 13 user timings
Avoid long main-thread tasks 20 long tasks found
Avoid non-composited animations 1 animated element found
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 170 ms
Server Backend Latencies 290 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Avoid multiple page redirects
Initial server response time was short Root document took 50 ms
INP breakdown
LCP request discovery
Avoid large layout shifts
87

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.

ARIA

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
AI-Scraper Generate structured data quickly with natural-language prompts. Go… div.grid > div.relative > div.flex > div.grid

Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
AI training & RAG AI training & RAG div.relative > div.absolute > div.mx-md > button#tab-AI training & RAG
AI-Scraper div.relative > div.absolute > div.mx-md > button#ai-studio-tab-ai-scraper

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
here div#CybotCookiebotDialogBodyContent > div#CybotCookiebotDialogBodyContentText > p > a
Show details div#CybotCookiebotDialogBody > div.CybotCookiebotDialogBodyBottomWrapper > div#CybotCookiebotDialogBodyEdgeMoreDetails > a#CybotCookiebotDialogBodyEdgeMoreDetailsLink
Access layer div#product-stack-Unblockers > div.grid > div.flex > p.font-width-normal
Data layer div#product-stack-Datasets > div.grid > div.flex > p.font-width-normal
10 div.relative > div.relative > div.absolute > div.font-code
11 div.relative > div.relative > div.absolute > div.font-code
12 div.relative > div.relative > div.absolute > div.font-code
13 div.relative > div.relative > div.absolute > div.font-code
14 div.relative > div.relative > div.absolute > div.font-code
15 div.relative > div.relative > div.absolute > div.font-code
16 div.relative > div.relative > div.absolute > div.font-code
import div.relative > div.relative > pre.-mt-1 > span.token
"customer-USER" div.relative > div.relative > pre.-mt-1 > span.token
"PASS" div.relative > div.relative > pre.-mt-1 > span.token
"pr.oxylabs.io:7777" div.relative > div.relative > pre.-mt-1 > span.token
'http' div.relative > div.relative > pre.-mt-1 > span.token
'https' div.relative > div.relative > pre.-mt-1 > span.token
request div.relative > div.relative > pre.-mt-1 > span.token
'GET' div.relative > div.relative > pre.-mt-1 > span.token
hello@oxylabs.io div.max-w-container-content > div.grid > div.flex > a.font-width-normal
support@oxylabs.io div.max-w-container-content > div.grid > div.flex > a.font-width-normal
career@oxylabs.io div.max-w-container-content > div.grid > div.flex > a.font-width-normal

These are opportunities to improve the legibility of your content.

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
Product management div.relative > div.grid > div.[&>*]:text-heading4 > h4.m-0
Scraping Experts div.grid > div.box-shadow-sm > div.grid > h5.m-0

These are opportunities to improve keyboard navigation in your application.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
“Vast proxy network and almost 100% uptime, we execute crucial data operations … div.relative > div.absolute > div.max-w-[1332px] > div.dark
“With Oxylabs we not only revolutionized our approach but also significantly en… div.relative > div.absolute > div.max-w-[1332px] > div.dark
“Oxylabs offered one of the best price-to-value combinations in the market and … div.relative > div.absolute > div.max-w-[1332px] > div.dark
“We managed to find a way to monitor certain sites that we couldn't monitor bef… div.relative > div.absolute > div.max-w-[1332px] > div.dark
Residential Proxies div > div.oxy-zrcozk > div.oxy-ln1kbk > div.!bg-light
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]`s are contained by their required parent element
`[role]` values are valid
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
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.
Select elements have associated label elements.
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[aria-hidden="true"]` elements do not contain focusable descendents
Elements use only permitted ARIA attributes
Document has a `<title>` element
`<frame>` or `<iframe>` elements have a title
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links are distinguishable without relying on color.
Links have a discernible name
No element has a `[tabindex]` value greater than 0
Touch targets have sufficient size and spacing.
`[lang]` attributes have a valid value
Document has a main landmark.
Deprecated ARIA roles were not used
ARIA IDs are unique
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Identical links have the same purpose.
`[accesskey]` values are unique
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
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
No form fields have multiple labels
`<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
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Skip links are focusable.
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.
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.
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
AttributionReporting

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
A bad HTTP response code (404) was received when fetching the script.
Load failed, error in settings
No visitor ID available. Load may have failed.
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
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Redirects HTTP traffic to HTTPS
Use a strong HSTS policy
Ensure proper origin isolation with COOP
Mitigate clickjacking with XFO or CSP
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

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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