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

Audit breakdown by category with detailed findings.

51

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
/_resources/images/RS31868_10455_Gary_Prinz-Lab-engineeri...0.0 ms259.8 KiB
www.uark.edu/_resources/images/test-senior-walk-8-web.jpg0.0 ms242.7 KiB
www.uark.edu/_resources/images/dedicated-backdrop2.jpg0.0 ms188.6 KiB
www.uark.edu/_resources/images/razorback-logo.png0.0 ms117.4 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
www.uark.edu/404.php0.0 ms43.1 KiB
/signals/config/1487439509120429?v=2.9.303&r=stable&domai...1200.0 s44.8 KiB
www.uark.edu/_resources/images/top-video-poster3.jpg0.0 ms31.7 KiB
www.uark.edu/_resources/css/new-uark-pagestyle-2024.css0.0 ms26.1 KiB
/_resources/php/combine.php?t=js&f=nivo/jquery.nivo.slide...3588.0 s29.8 KiB
www.uark.edu/inc/js/tablesorter/jquery.tablesorter.min.js0.0 ms16.4 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
www.uark.edu/_resources/js/menu-nav-mobile.js0.0 ms10.9 KiB
scripts.clarity.ms/0.8.59/clarity.js86400.0 s26.2 KiB
www.uark.edu/_resources/img/map.png0.0 ms9.4 KiB
www.uark.edu/_resources/js/left-nav.js0.0 ms8.4 KiB
kit.fontawesome.com/023239c67e.js60.0 s5.6 KiB
/widget/view?schools=uark&exclude_types=35971406519437%2C...600.0 s4.9 KiB
www.uark.edu/_resources/js/nivo/nivo-slider.css0.0 ms4.1 KiB
i.ytimg.com/vi/TQZetgFKYf0/default.jpg7200.0 s4.6 KiB
cdn01.basis.net/assets/up.js?um=10.0 ms3.1 KiB
i.ytimg.com/vi/Sz8TP_UgTC4/default.jpg7200.0 s3.9 KiB
i.ytimg.com/vi_webp/VezLHHgSQ_Q/default.webp7200.0 s3.4 KiB
applygsie.uark.edu/ping1788.0 s966 B
applyundergrad.uark.edu/ping1788.0 s966 B
/config/edu/5b0d06b2-051b-44f7-b383-808656ab6fee.js?v=3.5...0.0 ms470 B
static.doubleclick.net/instream/ad_status.js900.0 s495 B
/tr/?id=1487439509120429&ev=PageView&dl=https%3A%2F%2Fwww...0.0 ms16 B
static.doubleclick.net/instream/ad_status.js900.0 s0 B
static.doubleclick.net/instream/ad_status.js900.0 s0 B
www.uark.edu/_resources/videos/homepage-top-1080.webm0.0 ms0 B
www.uark.edu/_resources/videos/razorback-experience-1080.webm0.0 ms0 B

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.

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.

URLEst Savings
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2105 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff260 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff230 ms

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:19.891 source:map[column:73398 line:2 type:source-location url:https://scripts.clarity.ms/0.8.59/clarity.js 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:96.92 source:map[type:text value:[unattributed]]] map[reflowTime:25.493 source:map[column:55304 line:9 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/gsap.min.js urlProvider:network]] map[reflowTime:18.978 source:map[column:876 line:9 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/DrawSVGPlugin.min.js urlProvider:network]] map[reflowTime:1.395 source:map[column:1277 line:9 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/DrawSVGPlugin.min.js urlProvider:network]] map[reflowTime:3.541 source:map[column:1926 line:9 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/DrawSVGPlugin.min.js urlProvider:network]] map[reflowTime:0.178 source:map[column:34240 line:9 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/ScrollTrigger.min.js urlProvider:network]] map[reflowTime:10.842 source:map[column:13599 line:9 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/ScrollTrigger.min.js urlProvider:network]] map[reflowTime:0.33 source:map[column:16991 line:9 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/ScrollTrigger.min.js urlProvider:network]] map[reflowTime:4.059 source:map[column:3496 line:9 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/ScrollTrigger.min.js urlProvider:network]] map[reflowTime:0.462 source:map[column:1973 line:8 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/SplitText.min.js urlProvider:network]] map[reflowTime:0.921 source:map[column:1709 line:8 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/SplitText.min.js urlProvider:network]] map[reflowTime:4.64 source:map[column:2398 line:10 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/SplitText.min.js urlProvider:network]] map[reflowTime:0.278 source:map[column:3603 line:10 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/SplitText.min.js urlProvider:network]] map[reflowTime:0.455 source:map[column:25 line:641 type:source-location url:https://www.uark.edu/ urlProvider:network]] map[reflowTime:0.742 source:map[column:1319 line:9 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/gsap.min.js urlProvider:network]] map[reflowTime:0.669 source:map[column:52357 line:1 type:source-location url:https://code.jquery.com/jquery-3.6.0.min.js urlProvider:network]] map[reflowTime:0.67 source:map[column:52415 line:1 type:source-location url:https://code.jquery.com/jquery-3.6.0.min.js urlProvider:network]] map[reflowTime:0.266 source:map[column:52479 line:1 type:source-location url:https://code.jquery.com/jquery-3.6.0.min.js urlProvider:network]] map[reflowTime:12.578 source:map[column:55769 line:0 type:source-location url: urlProvider:network]] map[reflowTime:0.251 source:map[column:1292 line:10 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/SplitText.min.js urlProvider:network]] map[reflowTime:19.891 source:map[column:31518 line:1 type:source-location url:https://scripts.clarity.ms/0.8.59/clarity.js urlProvider:network]] map[reflowTime:0.305 source:map[column:10143 line:9 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/ScrollTrigger.min.js urlProvider:network]] map[reflowTime:1.432 source:map[column:59748 line:9 type:source-location url:https://cdn.jsdelivr.net/npm/gsap@3.13.0/dist/gsap.min.js 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: div#main-content > div.col > section.m-0 > video#hero-video
path: 1,HTML,1,BODY,4,DIV,0,DIV,0,DIV,5,SECTION,1,VIDEO
selector: div#main-content > div.col > section.m-0 > video#hero-video
snippet: <video id="hero-video" poster="/_resources/images/top-video-poster3.jpg" class="fade-in" playsinline="true" autoplay="true" muted="true" loop="true" preload="auto">

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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
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

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
includes.uark.edu/css/uark-main-454-d464be853a78.css451.7 KiB839 ms
www.uark.edu/_resources/js/left-nav.js8.4 KiB
www.uark.edu/_resources/js/menu-nav-mobile.js10.9 KiB83 ms
www.uark.edu/_resources/css/new-uark-pagestyle-2024.css26.1 KiB166 ms
cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js22.3 KiB126 ms
cdn.jsdelivr.net/npm/gsap@3.13.0/dist/DrawSVGPlugin.min.js2.5 KiB
cdn.jsdelivr.net/npm/gsap@3.13.0/dist/ScrollTrigger.min.js18.2 KiB
cdn.jsdelivr.net/npm/gsap@3.13.0/dist/MotionPathPlugin.min.js10.1 KiB256 ms
/css2?family=Roboto+Serif:ital,opsz,wght@0,8..144,200..90...1.2 KiB231 ms
code.jquery.com/jquery-3.6.0.min.js30.5 KiB363 ms
cdn.jsdelivr.net/npm/gsap@3.13.0/dist/gsap.min.js29.3 KiB84 ms
use.fontawesome.com/releases/v5.15.4/css/v4-shims.css4.8 KiB219 ms
cdn.jsdelivr.net/npm/gsap@3.13.0/dist/SplitText.min.js3.8 KiB
/css2?family=Lato:ital,wght@0,300;0,400;0,700;1,300;1,400...642 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
section#razorbackvideo > div.video-overlay > div.position-relative > img.col-5 section#razorbackvideo > div.video-overlay > div.position-relative > img.col-5
www.uark.edu/_resources/images/razorback-logo.png117.1 KiB112.3 KiB

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

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: 362 ms
URLTime Spent
uark.edu/362 ms
www.uark.edu/0.0 ms

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

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: 40 ms 4.1 KiB
URLTransfer SizeEst Savings
www.uark.edu/_resources/css/new-uark-pagestyle-2024.css26.1 KiB4.1 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 18.7 KiB
URLTransfer SizeEst Savings
/_resources/php/combine.php?t=js&f=nivo/jquery.nivo.slide...29.6 KiB13.0 KiB
www.uark.edu/_resources/js/menu-nav-mobile.js10.7 KiB3.3 KiB
www.uark.edu/_resources/js/left-nav.js8.1 KiB2.4 KiB

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: 320 ms 433.8 KiB
URLTransfer SizeEst Savings
includes.uark.edu/css/uark-main-454-d464be853a78.css451.0 KiB413.5 KiB
www.uark.edu/_resources/css/new-uark-pagestyle-2024.css25.8 KiB20.4 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
cdn.jsdelivr.net/npm/gsap@3.13.0/dist/gsap.min.js975 ms241 ms2.0 ms
www.uark.edu/539 ms183 ms9.2 ms
Unattributable476 ms11 ms0.0 ms
www.googletagmanager.com/gtag/js?id=G-QB9RS5X6BB&cx=c&gtm=4e64k0212 ms173 ms38 ms
www.googletagmanager.com/gtag/js?id=AW-17497635696&cx=c&gtm=4e64k0155 ms117 ms16 ms
prod.ally.ac/static/integration/api/ally.ui.b4fc30877e1b5491fbd6.js137 ms99 ms17 ms
www.googletagmanager.com/gtm.js?id=GTM-N5Z7HW119 ms96 ms21 ms
/signals/config/1487439509120429?v=2.9.303&r=stable&domai...118 ms99 ms15 ms
scripts.clarity.ms/0.8.59/clarity.js116 ms89 ms5.3 ms
sc-static.net/scevent.min.js68 ms63 ms2.0 ms
connect.facebook.net/en_US/fbevents.js65 ms47 ms18 ms
kit.fontawesome.com/023239c67e.js52 ms31 ms7.3 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 Evaluation1.5 s
Other1.1 s
Style & Layout348 ms
Rendering196 ms
Script Parsing & Compilation172 ms
Garbage Collection48 ms
Parse HTML & CSS32 ms

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: 0.0 ms 322.9 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtm.js?id=GTM-N5Z7HW144.3 KiB74.3 KiB
prod.ally.ac/static/integration/api/ally.ui.b4fc30877e1b5491fbd6.js103.5 KiB67.2 KiB
www.googletagmanager.com/gtag/js?id=G-QB9RS5X6BB&cx=c&gtm=4e64k0151.6 KiB65.0 KiB
www.googletagmanager.com/gtag/js?id=AW-17497635696&cx=c&gtm=4e64k0143.3 KiB54.3 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB34.0 KiB
/_resources/php/combine.php?t=js&f=nivo/jquery.nivo.slide...29.6 KiB28.0 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
www.uark.edu/_resources/videos/razorback-experience-1080.webm15.0 MiB
www.uark.edu/_resources/videos/homepage-top-1080.webm9.7 MiB
includes.uark.edu/css/uark-main-454-d464be853a78.css451.7 KiB
www.youtube.com/s/player/1bb6ee63/player_embed_es6.vflset/en_US/base.js436.0 KiB
/_resources/images/RS31868_10455_Gary_Prinz-Lab-engineeri...259.8 KiB
www.uark.edu/_resources/images/test-senior-walk-8-web.jpg242.7 KiB
www.uark.edu/_resources/images/dedicated-backdrop2.jpg188.6 KiB
/s/_/ytembeds/_/js/k=ytembeds.base.en_US.5f0apfZzpOA.2021...183.1 KiB
/s/robotoserif/v17/R705jywflP6FLr3gZx7K8UyEVQnyR1E7VN-f51...165.9 KiB
www.googletagmanager.com/gtag/js?id=G-QB9RS5X6BB&cx=c&gtm=4e64k0151.6 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
Researchers inspecting wheat crops and recording observations in a field under … div#main-content > div.col > section.mt-0 > img.img-stretch
www.uark.edu/_resources/images/dedicated-backdrop2.jpg
Engineer observing a tensile testing machine applying stress to a metal specime… div#main-content > div.col > section.mt-0 > img.img-stretch
/_resources/images/RS31868_10455_Gary_Prinz-Lab-engineeri...
Map of University of Arkansas Campus div.row > div.col-md-6 > a.d-none > img.img-responsive
www.uark.edu/_resources/img/map.png
University of Arkansas div#uark-site-id > div.nav-logo > a#uark-logo-container > img#uark-logo
includes.uark.edu/assets/ua-logo-horz.svg
Mid-South AI Research Consortium to Fuel Innovation div.row > div.col-md-8 > a > img.img-fluid
University Sets Research Record, Focuses on Improving Lives div.row > div.col-4 > a > img.img-fluid
School of Art Invites Campus to Celebrate Fine Arts Center Grand Reopening on A… div.row > div.col-4 > a > img.img-fluid
U of A to Unveil Solar Farm on Earth Day, Launching a Landmark Clean Energy Ini… div.row > div.col-4 > a > img.img-fluid

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

●Layout shift culprits
●Optimize DOM size
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●User Timing marks and measures 11 user timings
●Avoid long main-thread tasks 7 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 50 ms
●Server Backend Latencies 240 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 100 ms
●Avoid large layout shifts 2 layout shifts found
○INP breakdown
○Avoid non-composited animations
96

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

Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
Edit webpage Copyright of University of Arkansas body.loaded > span#directedit-footer

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.

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
479-575-2000 div.d-flex > div.flex-grow-1 > address > a
○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
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●Form elements have associated labels
●`[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
●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 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
●Touch targets have sufficient size and spacing.
●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
○`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
○Links are distinguishable without relying on color.
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○No element has a `[tabindex]` value greater than 0
○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.
81

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
cdn01.basis.net/assets/up.js?um=1
●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 browser errors logged to the console
●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 clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
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

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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
●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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