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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.

28

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
www.ualberta.ca/en/media-library/impact-images/our-impact-comes-to-life-2025.mp43600.0 s2.9 MiB
www.ualberta.ca/en/media-library/new-brand/homepage/coe-map-graphic-opt.png3600.0 s872.3 KiB
/en/supporting-indigenous-language-revitalization/media-l...3600.0 s694.6 KiB
/en/folio/media-library/2023/12/231205-qs-sustainability-...3600.0 s526.4 KiB
/en/media-library/new-brand/homepage/homepage-walterdale-...3600.0 s244.1 KiB
/en/folio/media-library/2024/11/241114-crc-carla-prado-te...3600.0 s240.9 KiB
/_assets/javascript/_coveo/december-2025/coveojssearch.la...3600.0 s210.4 KiB
www.ualberta.ca/en/media-library/ualberta/homepage/homepage-event-1600x900.jpg3600.0 s157.5 KiB
www.ualberta.ca/en/media-library/new-brand/homepage/edmonton-north-campus.jpeg3600.0 s147.0 KiB
www.ualberta.ca/en/media-library/new-brand/homepage/augustana-campus.jpeg3600.0 s116.9 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
www.ualberta.ca/en/media-library/ualberta/homepage/555450-coned-1050x700.jpg3600.0 s101.2 KiB
www.ualberta.ca/en/media-library/ualberta/homepage/146051-undergrad-1050x700.jpg3600.0 s91.3 KiB
www.ualberta.ca/en/media-library/new-brand/homepage/campus-saint-jean.jpeg3600.0 s89.2 KiB
/en/media-library/indigenous-excellence/indigenous-excell...3600.0 s75.4 KiB
www.ualberta.ca/en/media-library/ualberta/homepage/146051-grad-1050x700.jpg3600.0 s65.0 KiB
www.ualberta.ca/_assets/javascript/framework-v2.js3600.0 s61.2 KiB
www.ualberta.ca/_assets/css/framework-v2.css3600.0 s59.8 KiB
www.ualberta.ca/_assets/css/_coveo/coveofullsearch.css3600.0 s51.0 KiB
/signals/config/300160141793778?v=2.9.303&r=stable&domain...1200.0 s44.7 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
/_assets/javascript/_coveo/december-2025/searchbox.min__d...3600.0 s21.9 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
kit.fontawesome.com/857f66008e.js60.0 s5.7 KiB
www.ualberta.ca/_assets/css/font-awesome.css3600.0 s5.6 KiB
siteimproveanalytics.com/js/siteanalyze_10558.js86400.0 s8.9 KiB
www.ualberta.ca/_assets/images/ua-logo-reversed-white.svg3600.0 s3.9 KiB
script.crazyegg.com/pages/scripts/0012/7135.js300.0 s2.7 KiB
www.ualberta.ca/_assets/javascript/weather.module.js3600.0 s3.0 KiB
www.ualberta.ca/_assets/images/ua-logo-green.svg3600.0 s3.0 KiB
/_assets/javascript/_coveo/december-2025/analyticssuggest...3600.0 s2.9 KiB
www.ualberta.ca/_assets/javascript/_coveo/coveo.extension.js3600.0 s2.7 KiB
www.ualberta.ca/_assets/css/print.css3600.0 s2.6 KiB
live.clive.cloud/page-views/track/1620.0 ms1.8 KiB
/_assets/javascript/_coveo/december-2025/settings.min__d5...3600.0 s2.3 KiB
/_assets/javascript/_coveo/december-2025/facetsmobilemode...3600.0 s1.6 KiB
/collect?v=2&fmt=js&pid=4015476&time=1776803463851&url=ht...0.0 ms910 B
/rp.gif?ts=1776803464651&id=t2_90mycmrez&event=PageVisit&...0.0 ms666 B
/config/ca/de2211e8-b520-42f3-b325-b8b66bab4659.js?v=3.55...0.0 ms455 B
insight.adsrvr.org/track/pxl/?adv=p4kx8wl&ct=0:l4sf1i6&fmt=30.0 ms149 B
/tr/?redirect=0&rqm=GET&expv2[6]=hf1&expv2[5]=ct2&expv2[4...0.0 ms16 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
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-brands-400-0.woff235 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-12.woff235 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-13.woff235 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-1.woff230 ms
fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff220 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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:72.793 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
The University of Alberta is located in one of the northernmost major cities in… div.row > div.col-12 > div.row > div.col
www.ualberta.ca/en/media-library/new-brand/homepage/coe-map-graphic-opt.png870.4 KiB751.2 KiB
Image for news story: Language learning brings healing div.col-md-6 > div.card > picture.object-fit-cover > img.object-fit-cover
/en/supporting-indigenous-language-revitalization/media-l...693.0 KiB609.6 KiB
Image for news story: QS rankings highlight growing strengths div.col-md-12 > div.card > picture.object-fit-cover > img.object-fit-cover
/en/folio/media-library/2023/12/231205-qs-sustainability-...524.9 KiB426.2 KiB
Walterdale Bridge at Sunset div.col-12 > div.row > div.col-md-8 > img.h-100
/en/media-library/new-brand/homepage/homepage-walterdale-...243.0 KiB211.4 KiB
Carla Prado (Photo: John Ulan) div.col-md-6 > div.card > picture.object-fit-cover > img.object-fit-cover
/en/folio/media-library/2024/11/241114-crc-carla-prado-te...239.8 KiB141.0 KiB
Old arts building on U of A North Campus div.col-12 > div.row > div.col > img
www.ualberta.ca/en/media-library/new-brand/homepage/edmonton-north-campus.jpeg146.0 KiB139.6 KiB
Student smiling and posing between Guba and Patches in fron of the campus sign. div.row > div.col-md-4 > div.ratio > img.object-fit-cover
www.ualberta.ca/en/media-library/ualberta/homepage/homepage-event-1600x900.jpg156.5 KiB124.7 KiB
Students on the U of A Augustana Campus div.col-12 > div.row > div.col > img
www.ualberta.ca/en/media-library/new-brand/homepage/augustana-campus.jpeg115.9 KiB110.3 KiB
Campus Saint-Jean main entrance div.col-12 > div.row > div.col > img
www.ualberta.ca/en/media-library/new-brand/homepage/campus-saint-jean.jpeg88.2 KiB83.9 KiB
Two people speak into a microphone at an event div.col-12 > div.row > div.col > img.h-100
/en/media-library/indigenous-excellence/indigenous-excell...74.5 KiB60.0 KiB
div.card > div.card-header > div.ratio > img.object-fit-cover div.card > div.card-header > div.ratio > img.object-fit-cover
www.ualberta.ca/en/media-library/ualberta/homepage/555450-coned-1050x700.jpg100.2 KiB56.2 KiB
div.card > div.card-header > div.ratio > img.object-fit-cover div.card > div.card-header > div.ratio > img.object-fit-cover
www.ualberta.ca/en/media-library/ualberta/homepage/146051-undergrad-1050x700.jpg90.4 KiB46.3 KiB
div.card > div.card-header > div.ratio > img.object-fit-cover div.card > div.card-header > div.ratio > img.object-fit-cover
www.ualberta.ca/en/media-library/ualberta/homepage/146051-grad-1050x700.jpg64.1 KiB32.6 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:1244.508 label:Time to first byte subpart:timeToFirstByte] map[duration:1409.59 label:Resource load delay subpart:resourceLoadDelay] map[duration:681.532 label:Resource load duration subpart:resourceLoadDuration] map[duration:-259.211 label:Element render delay subpart:elementRenderDelay]]
lhId: page-13-VIDEO
nodeLabel: div.col-11 > div.ua-group > div.my-container > video.h-100
path: 1,HTML,1,BODY,1,MAIN,1,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,VIDEO
selector: div.col-11 > div.ua-group > div.my-container > video.h-100
snippet: <video autoplay="autoplay" class="h-100" height="100%" loop="loop" muted="" playsinline="" poster="/media-library/2021/10-oct/brand-launch-b-roll-poster.jpg" preload="" style="object-fit: cover;" width="100%">

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-13-VIDEO
nodeLabel: div.col-11 > div.ua-group > div.my-container > video.h-100
path: 1,HTML,1,BODY,1,MAIN,1,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,VIDEO
selector: div.col-11 > div.ua-group > div.my-container > video.h-100
snippet: <video autoplay="autoplay" class="h-100" height="100%" loop="loop" muted="" playsinline="" poster="/media-library/2021/10-oct/brand-launch-b-roll-poster.jpg" preload="" style="object-fit: cover;" width="100%">

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

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
www.ualberta.ca/_assets/javascript/framework-v2.js61.2 KiB1.4 s
www.ualberta.ca/_assets/javascript/_coveo/coveo.extension.js2.7 KiB
/_assets/javascript/_coveo/december-2025/coveojssearch.la...210.4 KiB1.2 s
/css2?family=Merriweather&family=Open+Sans&family=Roboto+...3.6 KiB820 ms
code.jquery.com/jquery-3.6.0.min.js30.5 KiB1.1 s
fonts.googleapis.com/css?family=Lato:300,400,700535 B172 ms

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 2.8 s
URLTime Spent
ualberta.ca/1.3 s
www.ualberta.ca/1.0 s
www.ualberta.ca/en/330 ms
www.ualberta.ca/en/0.0 ms
www.ualberta.ca/en/index.html180 ms
www.ualberta.ca/en/index.html0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

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 6.7 KiB
URLTransfer SizeEst Savings
www.ualberta.ca/_assets/css/_coveo/coveofullsearch.css51.0 KiB6.7 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: 1.1 s 217.7 KiB
URLTransfer SizeEst Savings
/*! * Font Awesome Pro 6.7.2 by @fontawesome - https://fontawesome.com * License - https://fontaw…102.9 KiB102.3 KiB
www.ualberta.ca/_assets/css/framework-v2.css59.0 KiB54.6 KiB
www.ualberta.ca/_assets/css/_coveo/coveofullsearch.css50.1 KiB49.5 KiB
/*! * Font Awesome Pro 6.7.2 by @fontawesome - https://fontawesome.com * License - https://fontaw…11.4 KiB11.4 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: 3.6 s 728.8 KiB
URLTransfer SizeEst Savings
/_assets/javascript/_coveo/december-2025/coveojssearch.la...201.7 KiB101.1 KiB
www.googletagmanager.com/gtag/destination?id=AW-929205552&cx=c&gtm=4e64h1145.6 KiB69.1 KiB
www.googletagmanager.com/gtag/destination?id=AW-1024881926&cx=c&gtm=4e64h1146.4 KiB68.5 KiB
www.googletagmanager.com/gtag/js?id=G-21TWH2P5G7&cx=c&gtm=4e64h1177.6 KiB67.4 KiB
www.googletagmanager.com/gtag/destination?id=AW-912709032&cx=c&gtm=4e64h1137.6 KiB66.8 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js121.1 KiB63.1 KiB
www.googletagmanager.com/gtag/js?id=AW-476924238&cx=c&gtm=4e64h1137.6 KiB60.5 KiB
www.googletagmanager.com/gtag/js?id=DC-10654965130.0 KiB60.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-KR32184.4 KiB56.8 KiB
www.ualberta.ca/_assets/javascript/framework-v2.js60.3 KiB46.5 KiB
/pages/versioned/commontransformations-scripts/df70602680...71.7 KiB35.0 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB33.7 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.ualberta.ca/en/index.html1.8 s11 ms5.5 ms
Unattributable894 ms80 ms0.0 ms
www.googletagmanager.com/gtm.js?id=GTM-KR32738 ms656 ms64 ms
/pages/versioned/commontransformations-scripts/df70602680...379 ms292 ms16 ms
www.googletagmanager.com/gtag/js?id=G-21TWH2P5G7&cx=c&gtm=4e64h1338 ms291 ms42 ms
www.ualberta.ca/_assets/javascript/framework-v2.js250 ms205 ms17 ms
/_assets/javascript/_coveo/december-2025/coveojssearch.la...226 ms165 ms60 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js218 ms172 ms43 ms
www.googletagmanager.com/gtag/destination?id=AW-1024881926&cx=c&gtm=4e64h1209 ms176 ms32 ms
www.googletagmanager.com/gtag/js?id=AW-476924238&cx=c&gtm=4e64h1199 ms168 ms30 ms
scripts.clarity.ms/0.8.60-beta/clarity.js195 ms177 ms5.6 ms
connect.facebook.net/en_US/fbevents.js172 ms134 ms38 ms
www.googletagmanager.com/gtag/destination?id=AW-912709032&cx=c&gtm=4e64h1170 ms142 ms27 ms
www.googletagmanager.com/gtag/destination?id=AW-929205552&cx=c&gtm=4e64h1164 ms133 ms30 ms
kit.fontawesome.com/857f66008e.js127 ms114 ms1.7 ms
/signals/config/300160141793778?v=2.9.303&r=stable&domain...123 ms103 ms20 ms
static.ads-twitter.com/uwt.js111 ms98 ms3.4 ms
sc-static.net/scevent.min.js97 ms87 ms4.1 ms
www.googletagmanager.com/gtag/js?id=DC-1065496587 ms53 ms33 ms
/_assets/javascript/_coveo/december-2025/searchbox.min__d...64 ms49 ms7.0 ms
/pages/versioned/tracking-scripts/158692313dc4b9f2e28d9e9...61 ms54 ms6.3 ms
snap.licdn.com/li.lms-analytics/insight.min.js61 ms52 ms5.2 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 Evaluation3.8 s
Other1.5 s
Style & Layout952 ms
Script Parsing & Compilation525 ms
Rendering253 ms
Garbage Collection115 ms
Parse HTML & CSS97 ms

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.ualberta.ca/en/media-library/impact-images/our-impact-comes-to-life-2025.mp42.9 MiB
www.ualberta.ca/en/media-library/new-brand/homepage/coe-map-graphic-opt.png872.3 KiB
/en/supporting-indigenous-language-revitalization/media-l...694.6 KiB
/en/folio/media-library/2023/12/231205-qs-sustainability-...526.4 KiB
/en/media-library/new-brand/homepage/homepage-walterdale-...244.1 KiB
/en/folio/media-library/2024/11/241114-crc-carla-prado-te...240.9 KiB
/_assets/javascript/_coveo/december-2025/coveojssearch.la...210.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-KR32184.8 KiB
www.googletagmanager.com/gtag/js?id=G-21TWH2P5G7&cx=c&gtm=4e64h1177.6 KiB
www.ualberta.ca/en/media-library/ualberta/homepage/homepage-event-1600x900.jpg157.5 KiB

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

●Layout shift culprits
●Optimize DOM size
●Modern HTTP
●Optimize viewport for mobile
●Minify JavaScript
●User Timing marks and measures 8 user timings
●Avoid long main-thread tasks 20 long tasks found
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 170 ms
●Server Backend Latencies 310 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 150 ms
○INP breakdown
○Avoid non-composited animations
○Avoid large layout shifts
100

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.

○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>`
●`[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.
●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
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●`<video>` elements contain a `<track>` element with `[kind="captions"]`
●Identical links have the same purpose.
●Elements with visible text labels have matching accessible names.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Deprecated ARIA roles were not used
○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 have all required `[aria-*]` attributes
○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
○`[role]` values are valid
○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.
○Skip links are focusable.
○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.
58

Best Practices

Trust and Safety

All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Insecure URLRequest Resolution
www.ualberta.ca/en/Allowed
www.ualberta.ca/en/index.htmlAllowed

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
snap.licdn.com/li.lms-analytics/insight.min.js

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
www.ualberta.ca/_assets/javascript/framework-v2.js line 1, col 78999
[object Object]
www.ualberta.ca/_assets/javascript/framework-v2.js line 1, col 78999
[object Object]
www.ualberta.ca/en/media-library/2021/10-oct/brand-launch-b-roll-poster.jpg
Failed to load resource: the server responded with a status of 404 ()
www.ualberta.ca/en/index.html/_notification/site-message.json?_=1776803462347
Failed to load resource: the server responded with a status of 404 ()
www.ualberta.ca/en/_emergency/emergency-message.json?_=1776803462346
Failed to load resource: the server responded with a status of 404 ()

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
/_assets/javascript/_coveo/december-2025/coveojssearch.la.../_assets/javascript/_coveo/december-2025/CoveoJsSearch.La...
/_assets/javascript/_coveo/december-2025/settings.min__d5.../_assets/javascript/_coveo/december-2025/Settings.min__d5...
/_assets/javascript/_coveo/december-2025/searchbox.min__d.../_assets/javascript/_coveo/december-2025/Searchbox.min__d...
/_assets/javascript/_coveo/december-2025/facetsmobilemode.../_assets/javascript/_coveo/december-2025/FacetsMobileMode...
/_assets/javascript/_coveo/december-2025/analyticssuggest.../_assets/javascript/_coveo/december-2025/AnalyticsSuggest...
www.ualberta.ca/_assets/javascript/_coveo/coveo.extension.jswww.ualberta.ca/_assets/javascript/_coveo/coveo.extension.js.map
●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 clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
○Redirects HTTP traffic to HTTPS
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SEO

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

Content Best Practices

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
www.ualberta.ca/en/indigenous/index.htmlLEARN MORE

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

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
More ul.navbar-nav > li.nav-item > button.nav-link > a.btn
More ul.navbar-nav > li.nav-item > button.nav-link > a.btn
More ul.navbar-nav > li.nav-item > button.nav-link > a.btn
More ul.navbar-nav > li.nav-item > button.nav-link > a.btn
More ul.navbar-nav > li.nav-item > button.nav-link > a.btn

To appear in search results, crawlers need access to your app.

○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
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
○robots.txt is valid
○Document has a valid `rel=canonical`

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