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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.

26

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 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
cdn.web.wsu.edu/css/Montserrat-Bold-static.ttf0.0 ms196.4 KiB
cdn.curator.io/5.0/curator.embed.js0.0 ms103.0 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
connect.facebook.net/en_US/bundle/sdk.js/1200.0 s77.8 KiB
/designsystem/2.x/dist/bundles/wsu-design-system.js?ver=1...0.0 ms54.4 KiB
/designsystem/2.x/dist/bundles/wsu-design-system.css?ver=...0.0 ms46.0 KiB
/signals/config/8872555839440868?v=2.9.303&r=stable&domai...1200.0 s46.0 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
cdn.curator.io/5.0/curator.embed.css0.0 ms14.8 KiB
/signals/config/352489839123111?v=2.9.303&r=stable&domain...1200.0 s16.3 KiB
/signals/config/769955981183168?v=2.9.303&r=stable&domain...1200.0 s16.0 KiB
/signals/config/226294922534478?v=2.9.303&r=stable&domain...1200.0 s16.0 KiB
/signals/config/1107875200241887?v=2.9.303&r=stable&domai...1200.0 s16.0 KiB
/designsystem/1.x/wsu-icons/dist/wsu-icons.dist.woff0.0 ms11.5 KiB
scripts.clarity.ms/0.8.59/clarity.js86400.0 s26.2 KiB
pixel.byspotify.com/ping.min.js3600.0 s10.3 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
connect.facebook.net/en_US/sdk.js1200.0 s5.1 KiB
/wp-content/plugins/wsuwp-plugin-jquery-migrate-custom/js...604800.0 s43.5 KiB
js.ipredictive.com/viant_universal_pixel.js0.0 ms3.5 KiB
/designsystem/2.x/dist/bundles/wsu-design-system.wordpres...0.0 ms2.0 KiB
/designsystem/1.x/wsu-icons/dist/wsu-icons.bundle.css?ver...0.0 ms1.4 KiB
cdn.web.wsu.edu/designsystem/1.x/wsu-icons/dist/wsu-icons.bundle.css0.0 ms1.4 KiB
cdn.curator.io/published/655259a3-1b3e-4d24-9fcf-940885db13b3.js0.0 ms1.4 KiB
wsu.edu/wp-includes/css/dist/block-library/style.min.css?ver=5.6.2604800.0 s10.9 KiB
/wp-content/plugins/wsuwp-plugin-jquery-migrate-custom/js...604800.0 s10.3 KiB
/designsystem/2.x/dist/bundles/wsu-design-system.init.js?...0.0 ms841 B
cdn.curator.io/published-css/655259a3-1b3e-4d24-9fcf-940885db13b3.css0.0 ms836 B
/rp.gif?ts=1776803763439&id=a2_hvuij00b4cta&event=PageVis...0.0 ms666 B
wsu.edu/wp-includes/js/wp-emoji-release.min.js?ver=5.6.2604800.0 s6.0 KiB
/config/edu/3dc6fff7-b48b-49ec-96f6-f7cd74721fca.js?v=3.5...0.0 ms456 B
/collect?v=2&fmt=js&pid=6533300&time=1776803763526&li_ads...0.0 ms271 B
/config/edu/fee219cf-5047-4b10-a4a3-e86850b42b67.js?v=3.5...0.0 ms212 B
wsu.edu/wp-includes/js/wp-embed.min.js?ver=5.6.2604800.0 s1.3 KiB
/collect?v=2&fmt=js&pid=6345226%2C6533300&time=1776803764...0.0 ms41 B
/tr/?id=8872555839440868&ev=PageView&dl=https%3A%2F%2Fwsu...0.0 ms18 B
/tr/?id=8872555839440868&ev=PageView&dl=https%3A%2F%2Fwsu...0.0 ms16 B
/tr/?id=352489839123111&ev=PageView&dl=https%3A%2F%2Fwsu....0.0 ms16 B
/tr/?id=226294922534478&ev=PageView&dl=https%3A%2F%2Fwsu....0.0 ms16 B
/tr/?id=769955981183168&ev=PageView&dl=https%3A%2F%2Fwsu....0.0 ms16 B
/tr/?id=1107875200241887&ev=PageView&dl=https%3A%2F%2Fwsu...0.0 ms16 B

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

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:32.042 source:map[column:148813 line:1 type:source-location url:https://cdn.web.wsu.edu/designsystem/2.x/dist/bundles/wsu-design-system.js?ver=1.7.10-1.26.2 urlProvider:network]] map[reflowTime:64.403 source:map[column:152155 line:1 type:source-location url:https://cdn.web.wsu.edu/designsystem/2.x/dist/bundles/wsu-design-system.js?ver=1.7.10-1.26.2 urlProvider:network]] map[reflowTime:1.086 source:map[column:158193 line:1 type:source-location url:https://cdn.web.wsu.edu/designsystem/2.x/dist/bundles/wsu-design-system.js?ver=1.7.10-1.26.2 urlProvider:network]] map[reflowTime:4.451 source:map[column:132099 line:1 type:source-location url:https://cdn.web.wsu.edu/designsystem/2.x/dist/bundles/wsu-design-system.js?ver=1.7.10-1.26.2 urlProvider:network]] map[reflowTime:0.227 source:map[column:96408 line:1 type:source-location url:https://cdn.web.wsu.edu/designsystem/2.x/dist/bundles/wsu-design-system.js?ver=1.7.10-1.26.2 urlProvider:network]] map[reflowTime:0.545 source:map[column:96564 line:1 type:source-location url:https://cdn.web.wsu.edu/designsystem/2.x/dist/bundles/wsu-design-system.js?ver=1.7.10-1.26.2 urlProvider:network]]]

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
div.wsu-hero-slider__wrapper > div.wsu-hero > div.wsu-image-frame > img div.wsu-hero-slider__wrapper > div.wsu-hero > div.wsu-image-frame > img
s3.wp.wsu.edu/uploads/sites/625/2022/07/Campus-photo-12.jpg1.5 MiB1.4 MiB
div.wsu-hero > div.wsu-video-background > div.wsu-video-background__inner > video.wsu-video-background__video div.wsu-hero > div.wsu-video-background > div.wsu-video-background__inner > video.wsu-video-background__video
s3.wp.wsu.edu/uploads/sites/625/2023/09/video-rame.jpg396.8 KiB327.2 KiB
article.wsu-card > div.wsu-image-frame > a > img article.wsu-card > div.wsu-image-frame > a > img
/uploads/sites/625/2026/03/Little-Birds-kids-and-hula-hoo...156.3 KiB122.7 KiB
article.wsu-card > div.wsu-image-frame > a > img article.wsu-card > div.wsu-image-frame > a > img
/uploads/sites/625/2026/04/Laurin-Ogg-Naomi-Turner-and-Ry...108.2 KiB81.7 KiB
Image posted by wsuspokane to instagram div.crt-post-content > div.crt-image > div.crt-image-c > img.crt-post-image
/655259a3-1b3e-4d24-9fcf-940885db13b3/388091790.jpg?width...46.6 KiB31.6 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:401.373 label:Time to first byte subpart:timeToFirstByte] map[duration:83.149 label:Resource load delay subpart:resourceLoadDelay] map[duration:98.625 label:Resource load duration subpart:resourceLoadDuration] map[duration:1999.397 label:Element render delay subpart:elementRenderDelay]]
lhId: page-1-VIDEO
nodeLabel: div.wsu-hero > div.wsu-video-background > div.wsu-video-background__inner > video.wsu-video-background__video
path: 1,HTML,1,BODY,10,DIV,6,DIV,1,DIV,0,MAIN,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,VIDEO
selector: div.wsu-hero > div.wsu-video-background > div.wsu-video-background__inner > video.wsu-video-background__video
snippet: <video class="wsu-video-background__video" autoplay="" loop="" muted="" poster="https://s3.wp.wsu.edu/uploads/sites/625/2023/09/video-rame.jpg" data-source="https://s3.wp.wsu.edu/uploads/videos/wsu-homepage.mp4">

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-1-VIDEO
nodeLabel: div.wsu-hero > div.wsu-video-background > div.wsu-video-background__inner > video.wsu-video-background__video
path: 1,HTML,1,BODY,10,DIV,6,DIV,1,DIV,0,MAIN,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,VIDEO
selector: div.wsu-hero > div.wsu-video-background > div.wsu-video-background__inner > video.wsu-video-background__video
snippet: <video class="wsu-video-background__video" autoplay="" loop="" muted="" poster="https://s3.wp.wsu.edu/uploads/sites/625/2023/09/video-rame.jpg" data-source="https://s3.wp.wsu.edu/uploads/videos/wsu-homepage.mp4">

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

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

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: 610 ms 63.3 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.

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
/designsystem/2.x/dist/bundles/wsu-design-system.js?ver=1...1.2 s282 ms50 ms
Unattributable1.1 s87 ms0.0 ms
cdn.curator.io/5.0/curator.embed.js999 ms703 ms46 ms
www.googletagmanager.com/gtm.js?id=GTM-5BGKTN2569 ms422 ms74 ms
wsu.edu/448 ms112 ms7.2 ms
www.googletagmanager.com/gtm.js?id=GTM-P9RHP4V410 ms351 ms51 ms
www.googletagmanager.com/gtag/js?id=G-CFV4Y78L3N&cx=c&gtm=4e64h1371 ms309 ms58 ms
www.googletagmanager.com/gtag/js?id=G-PQ2KLVLSG3&cx=c&gtm=4e64h1360 ms285 ms69 ms
www.googletagmanager.com/gtag/js?id=AW-567505108&cx=c&gtm=4e64h1354 ms285 ms65 ms
www.googletagmanager.com/gtm.js?id=GTM-K5CHVG352 ms276 ms70 ms
www.googletagmanager.com/gtag/js?id=AW-16693917241&cx=c&gtm=4e64h1340 ms275 ms62 ms
sc-static.net/scevent.min.js337 ms288 ms33 ms
www.googletagmanager.com/gtag/js?id=G-NHJ0V9MJMB&cx=c&gtm=4e64h1280 ms222 ms56 ms
www.googletagmanager.com/gtag/js?id=G-C2TCHJ8XTF&cx=c&_slc=1279 ms227 ms51 ms
scripts.clarity.ms/0.8.59/clarity.js265 ms216 ms12 ms
www.googletagmanager.com/gtag/js?id=G-XMM38JS40Y&cx=c&_slc=1260 ms208 ms50 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOA.js245 ms174 ms70 ms
www.googletagmanager.com/gtag/destination?id=DC-10179186&cx=c&gtm=4e64h1232 ms186 ms44 ms
/signals/config/352489839123111?v=2.9.303&r=stable&domain...165 ms86 ms12 ms
connect.facebook.net/en_US/fbevents.js162 ms118 ms43 ms
/signals/config/8872555839440868?v=2.9.303&r=stable&domai...158 ms134 ms23 ms
/wp-content/plugins/wsuwp-plugin-jquery-migrate-custom/js...151 ms49 ms13 ms
www.google-analytics.com/analytics.js121 ms104 ms6.6 ms
connect.facebook.net/en_US/bundle/sdk.js/121 ms86 ms34 ms
cdn.curator.io/published/655259a3-1b3e-4d24-9fcf-940885db13b3.js118 ms72 ms0.7 ms
/signals/config/769955981183168?v=2.9.303&r=stable&domain...67 ms52 ms12 ms
snap.licdn.com/li.lms-analytics/insight.min.js59 ms44 ms7.0 ms
analytics.tiktok.com/i18n/pixel/static/identify_5cff1caf.js58 ms37 ms20 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 Evaluation6.2 s
Other1.6 s
Script Parsing & Compilation1.1 s
Style & Layout947 ms
Garbage Collection217 ms
Rendering162 ms
Parse HTML & CSS131 ms

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 2.1 KiB
URLTransfer SizeEst Savings
.postid-6267 h1 { max-width: 900px; } …10.9 KiB2.1 KiB

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 3.9 KiB
URLTransfer SizeEst Savings
/wp-content/plugins/wsuwp-plugin-jquery-migrate-custom/js...9.9 KiB3.9 KiB

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
Image posted by wsueverett to instagram div.crt-post-content > div.crt-image > div.crt-image-c > img.crt-post-image
/655259a3-1b3e-4d24-9fcf-940885db13b3/388084695.jpg?width...
Image posted by wsuspokane to instagram div.crt-post-content > div.crt-image > div.crt-image-c > img.crt-post-image
/655259a3-1b3e-4d24-9fcf-940885db13b3/388091790.jpg?width...
Image posted by wsupullman to instagram div.crt-post-content > div.crt-image > div.crt-image-c > img.crt-post-image
/655259a3-1b3e-4d24-9fcf-940885db13b3/388049366.jpg?width...
Image posted by wsupullman to instagram div.crt-post-content > div.crt-image > div.crt-image-c > img.crt-post-image
/655259a3-1b3e-4d24-9fcf-940885db13b3/387901573.jpg?width...
Image posted by wsuspokane to instagram div.crt-post-content > div.crt-image > div.crt-image-c > img.crt-post-image
/655259a3-1b3e-4d24-9fcf-940885db13b3/387889393.jpg?width...
Image posted by wsueverett to instagram div.crt-post-content > div.crt-image > div.crt-image-c > img.crt-post-image
/655259a3-1b3e-4d24-9fcf-940885db13b3/387887592.jpg?width...
Image posted by wsupullman to instagram div.crt-post-content > div.crt-image > div.crt-image-c > img.crt-post-image
/655259a3-1b3e-4d24-9fcf-940885db13b3/387849780.jpg?width...
Image posted by wsueverett to instagram div.crt-post-content > div.crt-image > div.crt-image-c > img.crt-post-image
/655259a3-1b3e-4d24-9fcf-940885db13b3/388036497.jpg?width...
Image posted by wsuglobal to instagram div.crt-post-content > div.crt-image > div.crt-image-c > img.crt-post-image
/655259a3-1b3e-4d24-9fcf-940885db13b3/388046192.jpg?width...
Image posted by wsuglobal to instagram div.crt-post-content > div.crt-image > div.crt-image-c > img.crt-post-image
/655259a3-1b3e-4d24-9fcf-940885db13b3/387986174.jpg?width...
Image posted by wsupullman to instagram div.crt-post-content > div.crt-image > div.crt-image-c > img.crt-post-image
/655259a3-1b3e-4d24-9fcf-940885db13b3/387887874.jpg?width...
Image posted by wsupullman to instagram div.crt-post-content > div.crt-image > div.crt-image-c > img.crt-post-image
/655259a3-1b3e-4d24-9fcf-940885db13b3/387945142.jpg?width...

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
Optimize viewport for mobile
User Timing marks and measures 37 user timings
Avoid long main-thread tasks 20 long tasks found
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 70 ms
Server Backend Latencies 80 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 80 ms
INP breakdown
Avoid non-composited animations
Avoid large layout shifts
97

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.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
#spocougs article.crt-post > div.crt-post-c > div.crt-post-text > a
#wsuspokane article.crt-post > div.crt-post-c > div.crt-post-text > a
#gocougs article.crt-post > div.crt-post-c > div.crt-post-text > a
#spring article.crt-post > div.crt-post-c > div.crt-post-text > a
#spokane article.crt-post > div.crt-post-c > div.crt-post-text > a
#wsu article.crt-post > div.crt-post-c > div.crt-post-text > a
4 DAYS AGO div.crt-post-c > div.crt-post-footer > span.crt-post-date > a.crt-post-date-link
POLICIES nav.wsu-footer-global__navigation > ul.wsu-menu-tertiary > li > a
FOLLOW WSU nav.wsu-footer-global__navigation > ul.wsu-menu-tertiary > li > a

These items highlight common accessibility best practices.

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
Explore WSU Spokane div.wsu-hero > div.wsu-hero__content > div.wsu-hero__caption > a.wsu-button
Explore WSU Tri-Cities div.wsu-hero > div.wsu-hero__content > div.wsu-hero__caption > a.wsu-button
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
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]` values are valid
`[aria-*]` attributes have valid values
`[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.
`button`, `link`, and `menuitem` elements have accessible names
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.
Links have a discernible name
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
No element has a `[tabindex]` value greater than 0
Heading elements appear in a sequentially-descending order
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
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
`[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.
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
Failed to load resource: net::ERR_TOO_MANY_REDIRECTS
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
Detected JavaScript libraries
Page has valid source maps
Redirects HTTP traffic to HTTPS
Mitigate clickjacking with XFO or CSP
100

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.

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 have descriptive text
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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