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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.

32

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.optimizely.com/js/27293870253.js120.0 s99.8 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
/signals/config/357355867944507?v=2.9.303&r=stable&domain...1200.0 s46.4 KiB
tags.srv.stackadapt.com/events.js5.0 s7.7 KiB
static.hotjar.com/c/hotjar-1884950.js?sv=760.0 s6.2 KiB
slate.admissions.arizona.edu/ping1788.0 s1.5 KiB
cdn.digital.arizona.edu/lib/az-icons/1.0.4/fonts/az-icons.ttf?d54800691200.0 s5.4 KiB
/config/edu/5faf3b90-c2fa-4e6e-bc7d-0d3ff6b1ad2c.js?v=3.5...0.0 ms463 B
cdn.digital.arizona.edu/lib/az-icons/1.0.4/az-icons-styles.min.css691200.0 s987 B
/p.css?s=1&k=emv3zbo&ht=tk&f=137.138.139.140.169.170.171....604800.0 s172 B
/tr/?id=357355867944507&ev=PageView&dl=https%3A%2F%2Fwww....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.

URLEst Savings
/s/materialsymbolsrounded/v330/syl0-zNym6YjUruM-QrEh7-nyT...120 ms
cdn.digital.arizona.edu/lib/az-icons/1.0.4/fonts/az-icons.ttf?d5480020 ms
/af/b683e3/00000000000000003b9b306c/27/l?primer=7cdcb44be...15 ms
/af/1ca608/00000000000000003b9b3074/27/l?primer=7cdcb44be...10 ms
/af/949f99/00000000000000003b9b3068/27/l?primer=7cdcb44be...10 ms
/af/40ff7f/00000000000000003b9b3061/27/l?primer=7cdcb44be...10 ms
/af/6e816b/00000000000000003b9b3064/27/l?primer=7cdcb44be...5.0 ms
/af/705e94/00000000000000003b9b3062/27/l?primer=7cdcb44be...5.0 ms
/af/cebe0e/00000000000000003b9b3060/27/l?primer=7cdcb44be...5.0 ms
/af/8e2bbd/00000000000000003b9b3072/27/l?primer=7cdcb44be...5.0 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:20.939 source:map[column:2466 line:4 type:source-location url:https://www.arizona.edu/sites/default/files/js/js_ORc1seI86BukvxlHy9F_ZkcplfH-YkW_n9TaBjxnsDo.js?scope=header&delta=0&language=en&theme=az_barrio&include=eJx1UO1uwyAMfKEQHmc_LUMcQgoYgUmbPH2Juk5Lp0kI7oOz4LBWEvBpJStc9FrHyJOfd9g83cE0EU4QfLpBPxeOBBkdDfgnxll89AeFfcADDJbiWeOhDNqbEu4rfxonUjzPymLasKqE2_VKFzpRC29UfjmvV6nEynKag7dympYLnaHIxgd6D8tY0BXMS9UXNl4YzC0EuPtJlmsIhB4CkSaP-j9j3LlJM3QmK4XeSNdT01c6GGap0sPvb7jABoOqsvd-3dDnnT3rqbSMYfymg2N2gcBW0i_Y0RcKlYjlxxV02vXtk4-44uMqxidlaMNB 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:1.628 source:map[column:114 line:3 type:source-location url:https://www.arizona.edu/sites/default/files/js/js_ORc1seI86BukvxlHy9F_ZkcplfH-YkW_n9TaBjxnsDo.js?scope=header&delta=0&language=en&theme=az_barrio&include=eJx1UO1uwyAMfKEQHmc_LUMcQgoYgUmbPH2Juk5Lp0kI7oOz4LBWEvBpJStc9FrHyJOfd9g83cE0EU4QfLpBPxeOBBkdDfgnxll89AeFfcADDJbiWeOhDNqbEu4rfxonUjzPymLasKqE2_VKFzpRC29UfjmvV6nEynKag7dympYLnaHIxgd6D8tY0BXMS9UXNl4YzC0EuPtJlmsIhB4CkSaP-j9j3LlJM3QmK4XeSNdT01c6GGap0sPvb7jABoOqsvd-3dDnnT3rqbSMYfymg2N2gcBW0i_Y0RcKlYjlxxV02vXtk4-44uMqxidlaMNB urlProvider:network]] map[reflowTime:9.027 source:map[column:1259 line:3 type:source-location url:https://www.arizona.edu/sites/default/files/js/js_ORc1seI86BukvxlHy9F_ZkcplfH-YkW_n9TaBjxnsDo.js?scope=header&delta=0&language=en&theme=az_barrio&include=eJx1UO1uwyAMfKEQHmc_LUMcQgoYgUmbPH2Juk5Lp0kI7oOz4LBWEvBpJStc9FrHyJOfd9g83cE0EU4QfLpBPxeOBBkdDfgnxll89AeFfcADDJbiWeOhDNqbEu4rfxonUjzPymLasKqE2_VKFzpRC29UfjmvV6nEynKag7dympYLnaHIxgd6D8tY0BXMS9UXNl4YzC0EuPtJlmsIhB4CkSaP-j9j3LlJM3QmK4XeSNdT01c6GGap0sPvb7jABoOqsvd-3dDnnT3rqbSMYfymg2N2gcBW0i_Y0RcKlYjlxxV02vXtk4-44uMqxidlaMNB urlProvider:network]] map[reflowTime:10.284 source:map[column:542 line:3 type:source-location url:https://www.arizona.edu/sites/default/files/js/js_ORc1seI86BukvxlHy9F_ZkcplfH-YkW_n9TaBjxnsDo.js?scope=header&delta=0&language=en&theme=az_barrio&include=eJx1UO1uwyAMfKEQHmc_LUMcQgoYgUmbPH2Juk5Lp0kI7oOz4LBWEvBpJStc9FrHyJOfd9g83cE0EU4QfLpBPxeOBBkdDfgnxll89AeFfcADDJbiWeOhDNqbEu4rfxonUjzPymLasKqE2_VKFzpRC29UfjmvV6nEynKag7dympYLnaHIxgd6D8tY0BXMS9UXNl4YzC0EuPtJlmsIhB4CkSaP-j9j3LlJM3QmK4XeSNdT01c6GGap0sPvb7jABoOqsvd-3dDnnT3rqbSMYfymg2N2gcBW0i_Y0RcKlYjlxxV02vXtk4-44uMqxidlaMNB urlProvider:network]] map[reflowTime:9.531 source:map[column:107 line:18 type:source-location url:https://www.arizona.edu/sites/default/files/js/js_YVMiX-c84iKGW4xwH760tzR8P0NkB3J7aNH3uAOMAcc.js?scope=footer&delta=1&language=en&theme=az_barrio&include=eJx1UO1uwyAMfKEQHmc_LUMcQgoYgUmbPH2Juk5Lp0kI7oOz4LBWEvBpJStc9FrHyJOfd9g83cE0EU4QfLpBPxeOBBkdDfgnxll89AeFfcADDJbiWeOhDNqbEu4rfxonUjzPymLasKqE2_VKFzpRC29UfjmvV6nEynKag7dympYLnaHIxgd6D8tY0BXMS9UXNl4YzC0EuPtJlmsIhB4CkSaP-j9j3LlJM3QmK4XeSNdT01c6GGap0sPvb7jABoOqsvd-3dDnnT3rqbSMYfymg2N2gcBW0i_Y0RcKlYjlxxV02vXtk4-44uMqxidlaMNB urlProvider:network]] map[reflowTime:0.085 source:map[column:120 line:7 type:source-location url:https://www.arizona.edu/sites/default/files/js/js_pTmBvUMG3Ev6DN60UZuZpEh1qIuR2zcf2VPonbxssvU.js?scope=footer&delta=3&language=en&theme=az_barrio&include=eJx1UO1uwyAMfKEQHmc_LUMcQgoYgUmbPH2Juk5Lp0kI7oOz4LBWEvBpJStc9FrHyJOfd9g83cE0EU4QfLpBPxeOBBkdDfgnxll89AeFfcADDJbiWeOhDNqbEu4rfxonUjzPymLasKqE2_VKFzpRC29UfjmvV6nEynKag7dympYLnaHIxgd6D8tY0BXMS9UXNl4YzC0EuPtJlmsIhB4CkSaP-j9j3LlJM3QmK4XeSNdT01c6GGap0sPvb7jABoOqsvd-3dDnnT3rqbSMYfymg2N2gcBW0i_Y0RcKlYjlxxV02vXtk4-44uMqxidlaMNB urlProvider:network]] map[reflowTime:0.564 source:map[type:text value:[unattributed]]]]

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-DIV
nodeLabel: Pause Video Play Video Congratulations, Future Wildcats! Congratulations on yo…
path: 1,HTML,1,BODY,2,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,MAIN,0,SECTION,0,DIV,0,DIV,0,ARTICLE,1,DIV,0,DIV,0,DIV,0,DIV
selector: div.node__content > div.field > div.field__item > div#az-text-media-871
snippet: <div class="mb-5 paragraph position-relative paragraph--type--az-text-media media--typ…" id="az-text-media-871">

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

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
cdn.digital.arizona.edu/lib/az-icons/1.0.4/az-icons-styles.min.css987 B799 ms
/css2?family=Material+Symbols+Rounded:opsz,wght,FILL,GRAD...909 B818 ms
use.typekit.net/emv3zbo.css2.5 KiB760 ms
/p.css?s=1&k=emv3zbo&ht=tk&f=137.138.139.140.169.170.171....172 B753 ms
www.arizona.edu/libraries/arizona-bootstrap/css/arizona-bootstrap.min.css?tdicmw71.8 KiB1.5 s
www.arizona.edu/modules/contrib/google_tag/js/gtag.js?tdicmw949 B
/sites/default/files/css/css_KCQzxK7DGJ_lVEDnANZUj6vIR-hM...4.5 KiB150 ms
/sites/default/files/css/css_azv27JdPLrAxWs6MUzZJUrzOLAEn...4.0 KiB150 ms
/sites/default/files/js/js_ORc1seI86BukvxlHy9F_ZkcplfH-Yk...1.3 KiB
www.arizona.edu/modules/contrib/google_tag/js/gtm.js?tdicmw864 B
/sites/default/files/css/css_YpMzTSpLNri0JGLpTcp4jUJuY-lx...422 B
/sites/default/files/css/css_rvxbqNHCcmMq0UYUs_9-z2T_gTfZ...5.2 KiB150 ms

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.

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
UA-Commencement div.mb-6 > div.az-splitscreen-image > div.field > img.img-fluid
/sites/default/files/styles/az_large/public/2026-04/UA-Co...153.1 KiB134.8 KiB
Two UArizona students walking outside on campus div#az-text-media-874 > div.text-on-media-bottom > picture > img.img-fluid
/sites/default/files/styles/az_full_width_bg_extra_small/...83.4 KiB73.5 KiB
Pause Video Play Video Congratulations, Future Wildcats! Congratulations on yo… div.node__content > div.field > div.field__item > div#az-text-media-871
/sites/default/files/styles/az_full_width_bg_extra_small/...31.9 KiB10.9 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: 752 ms
URLTime Spent
arizona.edu/752 ms
www.arizona.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

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: 680 ms 66.7 KiB
URLTransfer SizeEst Savings
www.arizona.edu/libraries/arizona-bootstrap/css/arizona-bootstrap.min.css?tdicmw71.5 KiB66.7 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: 3.2 s 540.2 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtag/js?id=G-7PV3540XS3&cx=c&gtm=4e64h1172.7 KiB68.0 KiB
www.googletagmanager.com/gtag/js?id=AW-322090378&cx=c&gtm=4e64h1137.6 KiB62.3 KiB
www.googletagmanager.com/gtag/js?id=AW-856399358&cx=c&gtm=4e64h1137.6 KiB62.2 KiB
www.googletagmanager.com/gtag/js?id=DC-11376695&cx=c&gtm=4e64h1129.4 KiB61.7 KiB
www.googletagmanager.com/gtag/js?id=AW-10936599160&cx=c&gtm=4e64h1137.5 KiB61.3 KiB
www.googletagmanager.com/gtm.js?id=GTM-ML2BZB184.6 KiB60.3 KiB
cdn.optimizely.com/js/27293870253.js99.2 KiB47.1 KiB
script.hotjar.com/modules.6a0f3932cb1341a35c18.js56.1 KiB37.6 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB32.0 KiB
/libraries/arizona-bootstrap/js/arizona-bootstrap.bundle....30.2 KiB25.1 KiB
www.arizona.edu/core/assets/vendor/jquery/jquery.min.js?v=4.0.031.4 KiB22.6 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
www.arizona.edu/566 ms9.3 ms0.7 ms
www.googletagmanager.com/gtm.js?id=GTM-ML2BZB420 ms347 ms65 ms
Unattributable338 ms25 ms0.0 ms
cdn.optimizely.com/js/27293870253.js283 ms235 ms34 ms
www.googletagmanager.com/gtag/js?id=G-7PV3540XS3&cx=c&gtm=4e64h1271 ms226 ms43 ms
www.googletagmanager.com/gtag/js?id=AW-10936599160&cx=c&gtm=4e64h1222 ms183 ms38 ms
www.googletagmanager.com/gtag/js?id=AW-322090378&cx=c&gtm=4e64h1219 ms186 ms32 ms
www.googletagmanager.com/gtag/js?id=AW-856399358&cx=c&gtm=4e64h1186 ms154 ms32 ms
connect.facebook.net/en_US/fbevents.js177 ms100 ms39 ms
www.googletagmanager.com/gtag/js?id=DC-11376695&cx=c&gtm=4e64h1149 ms123 ms25 ms
script.hotjar.com/modules.6a0f3932cb1341a35c18.js146 ms124 ms18 ms
/signals/config/357355867944507?v=2.9.303&r=stable&domain...127 ms111 ms15 ms
sc-static.net/scevent.min.js121 ms110 ms4.6 ms
/sites/default/files/js/js_ORc1seI86BukvxlHy9F_ZkcplfH-Yk...103 ms9.2 ms0.6 ms
tags.srv.stackadapt.com/events.js76 ms30 ms2.6 ms
/sites/default/files/js/js_YVMiX-c84iKGW4xwH760tzR8P0NkB3...75 ms35 ms1.4 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 Evaluation2.1 s
Other524 ms
Style & Layout523 ms
Script Parsing & Compilation373 ms
Rendering57 ms
Parse HTML & CSS55 ms
Garbage Collection35 ms

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
The University of Arizona | Home div.row > div.col > a.qs-site-logo > img.img-fluid
www.arizona.edu/sites/default/files/www_webheader.png
The University of Arizona | Home section.region > div#block-az-barrio-branding > a.qs-site-logo > img.img-fluid
www.arizona.edu/sites/default/files/www_webheader-01.svg

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
●Minify CSS
●Minify JavaScript
●Avoids enormous network payloads Total size was 2,599 KiB
●User Timing marks and measures 7 user timings
●Avoid long main-thread tasks 15 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 100 ms
●Server Backend Latencies 130 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 0 ms
●Avoid large layout shifts 1 layout shift found
○INP breakdown
98

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.

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
U of A professors Elaine Romero, Erika Hamden named 2026 Guggenheim Fellows div.node__content > div.card > a.field-group-link > h4.card-title

These are opportunities to improve keyboard navigation in your application.

○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
●`[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.
●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
●Touch targets have sufficient size and spacing.
●Document has a main landmark.
●Deprecated ARIA roles were not used
○`[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
○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.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○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.
○Identical links have the same purpose.
○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

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLDisplayed sizeActual sizeExpected size
div.field__item > div#az-text-media-871 > picture > img.img-fluid div.field__item > div#az-text-media-871 > picture > img.img-fluid
/sites/default/files/styles/az_full_width_bg_extra_small/...412 x 759265 x 488618 x 1139

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
connect.facebook.net/en_US/fbevents.js line 279, col 769
●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
●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 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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