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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.

71

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.carleton.ca/rds/assets/bg-images/tory.jpg0.0 ms134.1 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
/gutenberg/cutheme-twig/cutheme-styles.css.gz?ver=0.39.10.0 ms41.5 KiB
/signals/config/967742313697472?v=2.9.303&r=stable&domain...1200.0 s44.9 KiB
/gutenberg/cutheme-twig/cutheme-scripts.js.gz?ver=0.39.10.0 ms32.6 KiB
i.ytimg.com/vi_webp/QsR50Qi0gfA/maxresdefault.webp7200.0 s32.2 KiB
/signals/config/609631006259841?v=2.9.303&r=stable&domain...1200.0 s16.4 KiB
scripts.clarity.ms/0.8.59/clarity.js86400.0 s26.2 KiB
c.amazon-adsystem.com/aat/amzn.js0.0 ms9.0 KiB
cdn.carleton.ca/rds/assets/cu-logos/cu-logo-color-vertical-outlined.svg0.0 ms8.4 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
cdn.carleton.ca/rds/assets/cu-logos/cu-logo-color-right-horiztonal.svg0.0 ms7.1 KiB
s.yimg.com/wi/ytc.js0.0 ms7.1 KiB
acdn.adnxs.com/dmp/up/pixie.js86402.0 s9.0 KiB
cdn.carleton.ca/rds/assets/ravens-logos/ravens-logo.svg0.0 ms2.9 KiB
cdn.carleton.ca/rds/assets/graphics/cu-waves-footer-red.svg0.0 ms2.0 KiB
cdn.carleton.ca/rds/assets/cu-logos/cu-shield-color.svg0.0 ms2.0 KiB
cdn.carleton.ca/rds/assets/graphics/cu-waves-hard-edge-red.svg0.0 ms1.8 KiB
cdn.carleton.ca/rds/assets/graphics/cu-waves-hard-edge-black.svg0.0 ms1.8 KiB
cdn.carleton.ca/rds/assets/graphics/cu-waves-repeating-bottom-red.svg0.0 ms1.7 KiB
cdn.carleton.ca/rds/assets/graphics/quote-red-10.svg0.0 ms1.4 KiB
/collect?v=2&fmt=js&pid=2512482%2C3693620&time=1776889534...0.0 ms693 B
/config/ca/e7d46c91-9345-45b6-89e8-9d2905b3d960.js?v=3.56...0.0 ms461 B
static.doubleclick.net/instream/ad_status.js900.0 s495 B
/config/ca/fa79a99a-36f0-43b6-ab27-3a82eb173052.js?v=3.56...0.0 ms267 B
/tr/?id=967742313697472&ev=PageView&dl=https%3A%2F%2Fcarl...0.0 ms16 B
/tr/?id=609631006259841&ev=PageView&dl=https%3A%2F%2Fcarl...0.0 ms16 B
i.ytimg.com/vi_webp/QsR50Qi0gfA/maxresdefault.webp7200.0 s0 B
static.doubleclick.net/instream/ad_status.js900.0 s0 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.28141099999999997] map[node:map[boundingRect:map[bottom:1374 height:547 left:0 right:1350 top:826 width:1350] lhId:page-17-SECTION nodeLabel:Feature Celebrating Ottawa’s Rising Business Leaders Five Carleton community … path:1,HTML,1,BODY,2,MAIN,0,SECTION,2,SECTION selector:body.home > main#main-content > section.box-border > section.w-screen snippet:<section class="w-screen px-6 cu-section cu-section--white ml-offset-center md:px-8 lg:px-…"> type:node] score:0.249574] map[node:map[boundingRect:map[bottom:6716 height:6645 left:0 right:1350 top:71 width:1350] lhId:page-23-MAIN nodeLabel:Join a Smart, Caring Community Find your people and your purpose with our new … path:1,HTML,1,BODY,2,MAIN selector:body.home > main#main-content snippet:<main id="main-content" class="flex justify-center px-4 overflow-x-hidden cu-main md:px-6 lg:px-12 cu-pro…"> type:node] score:0.025015] map[node:map[boundingRect:map[bottom:54 height:36 left:212 right:1318 top:18 width:1106] lhId:page-22-DIV nodeLabel:About Admissions Academics Research Priorities Future Students Browse Apply Don… path:1,HTML,1,BODY,1,HEADER,0,NAV,0,DIV,1,DIV selector:header.sticky > nav.cu-nav--top > div.flex > div.cu-nav__aside snippet:<div class="cu-nav__aside flex items-center justify-center gap-4 lg:gap-8 grow max-sm:…"> type:node] score:0.005893] map[node:map[boundingRect:map[bottom:1253 height:144 left:695 right:975 top:1109 width:280] lhId:page-15-DIV nodeLabel:Alumna Catherine Sinclair reflects on how her Carleton education led to a leade… path:1,HTML,1,BODY,2,MAIN,0,SECTION,2,SECTION,0,DIV,0,DIV,2,DIV,2,DIV selector:div.space-y-6 > div.cu-column > div.not-prose > div.flex snippet:<div class="flex flex-col px-6 text-left"> type:node] score:0.000929]]

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.woff235 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBA.woff235 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:3.891 source:map[column:47 line:65 type:source-location url:webpack://cutheme-twig/./src/scripts/nav/scrollingNav.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:3.486 source:map[type:text value:[unattributed]]] map[reflowTime:3.891 source:map[column:32 line:13 type:source-location url:webpack://cutheme-twig/./src/scripts/nav/scrollingNav.js? urlProvider:network]] map[reflowTime:0.873 source:map[column:376 line:729 type:source-location url:https://www.googletagmanager.com/gtag/js?id=G-GPRE4N72YN&cx=c&gtm=4e64k0 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.cu-column > div.not-prose > figure.relative > img div.cu-column > div.not-prose > figure.relative > img
carleton.ca/wp-content/uploads/2026/04/art-in-practice-600x400-1.jpg130.9 KiB122.4 KiB
div.cu-column > div.not-prose > figure.relative > img div.cu-column > div.not-prose > figure.relative > img
carleton.ca/wp-content/uploads/2024/11/nursing-launch-600x400-1.jpg117.3 KiB108.8 KiB
div.cu-column > div.not-prose > figure.relative > img div.cu-column > div.not-prose > figure.relative > img
carleton.ca/wp-content/uploads/2024/10/undergradute-admissions-300x200-1.jpg80.3 KiB71.8 KiB
section.w-screen > div.space-y-6 > div.cu-imagegrid > div.relative section.w-screen > div.space-y-6 > div.cu-imagegrid > div.relative
/wp-content/uploads/2026/03/P_CarletonPhotography_MensBas...135.4 KiB71.4 KiB
div.cu-column > div.not-prose > figure.relative > img div.cu-column > div.not-prose > figure.relative > img
carleton.ca/wp-content/uploads/2024/10/continuing-education-300x200-1.jpg67.5 KiB59.0 KiB
div.cu-column > div.not-prose > figure.relative > img div.cu-column > div.not-prose > figure.relative > img
/wp-content/uploads/2026/03/my-afromania-1200x800-1-1024x...64.9 KiB56.5 KiB
div.cu-column > div.not-prose > figure.relative > img div.cu-column > div.not-prose > figure.relative > img
carleton.ca/wp-content/uploads/2024/10/attend-300x200-5.jpg64.2 KiB55.8 KiB
div.cu-column > div.not-prose > figure.relative > img div.cu-column > div.not-prose > figure.relative > img
carleton.ca/wp-content/uploads/2024/10/attend-300x200-1.jpg63.8 KiB55.4 KiB
section.w-screen > div.space-y-6 > div.cu-imagegrid > div.relative section.w-screen > div.space-y-6 > div.cu-imagegrid > div.relative
carleton.ca/wp-content/uploads/2026/03/Iron-Ring-Winter-Ceremony-768x512.jpg112.2 KiB48.2 KiB
div.cu-column > div.not-prose > figure.relative > img div.cu-column > div.not-prose > figure.relative > img
/wp-content/uploads/2026/03/overcoming-the-digital-divide...51.2 KiB42.7 KiB
section.w-screen > div.space-y-6 > div.cu-imagegrid > div.relative section.w-screen > div.space-y-6 > div.cu-imagegrid > div.relative
/wp-content/uploads/2026/04/P_CarletonPhotography_Preside...102.6 KiB38.6 KiB
section.w-screen > div.space-y-6 > div.cu-imagegrid > div.relative section.w-screen > div.space-y-6 > div.cu-imagegrid > div.relative
/wp-content/uploads/2026/02/campus-life-feb-2026-1200x800...87.2 KiB23.2 KiB
section.w-screen > div.space-y-6 > div.cu-imagegrid > div.relative section.w-screen > div.space-y-6 > div.cu-imagegrid > div.relative
/wp-content/uploads/2026/04/P_CarletonPhotography_SCE_Cap...80.4 KiB16.4 KiB
A computer monitor displays a stock market chart, with two people visible in th… div.flex > div.flex-1 > figure.wp-block-image > img.wp-image-4183
/wp-content/uploads/2026/04/real-world-investment-lessons...36.0 KiB7.6 KiB

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-14-VIDEO
nodeLabel: Aerial and ground-level footage of Carleton University’s campus, featuring stud…
path: 1,HTML,1,BODY,2,MAIN,0,SECTION,0,SECTION,0,DIV,0,VIDEO
selector: section.box-border > section.relative > div.relative > video.w-full
snippet: <video class="w-full h-auto bg-black rounded-none cu-video" autoplay="" muted="" loop="" aria-label="Aerial and ground-level footage of Carleton University’s campus, featuring…" tabindex="-1">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLProtocol
carleton.ca/http/1.1
carleton.ca/wp-content/themes/cutheme-twig/src/scripts/search-autosuggest.jshttp/1.1
cdn.carleton.ca/rds/assets/cu-logos/cu-logo-color-right-horiztonal.svghttp/1.1
cdn.carleton.ca/rds/assets/cu-logos/cu-shield-color.svghttp/1.1
carleton.ca//site.webmanifesthttp/1.1
carleton.ca/wp-content/uploads/2024/11/nursing-launch-600x400-1.jpghttp/1.1
/wp-content/uploads/2026/03/overcoming-the-digital-divide...http/1.1
carleton.ca/wp-content/uploads/2026/04/art-in-practice-600x400-1.jpghttp/1.1
cdn.carleton.ca/rds/assets/ravens-logos/ravens-logo.svghttp/1.1
cdn.carleton.ca/rds/assets/cu-logos/cu-logo-color-vertical-outlined.svghttp/1.1
carleton.ca/wp-content/plugins/page-links-to/dist/new-tab.js?ver=3.3.7http/1.1
cdn.carleton.ca/rds/assets/graphics/cu-waves-hard-edge-red.svghttp/1.1
cdn.carleton.ca/rds/assets/bg-images/tory.jpghttp/1.1
cdn.carleton.ca/rds/assets/graphics/cu-waves-repeating-bottom-red.svghttp/1.1
/wp-content/uploads/2026/04/P_CarletonPhotography_Preside...http/1.1
/wp-content/uploads/2026/04/P_CarletonPhotography_SCE_Cap...http/1.1
carleton.ca/wp-content/uploads/2026/03/Dean-Appreciation-768x787.jpeghttp/1.1
/wp-content/uploads/2026/02/campus-life-feb-2026-1200x800...http/1.1
carleton.ca/wp-content/uploads/2026/03/Iron-Ring-Winter-Ceremony-768x512.jpghttp/1.1
/wp-content/uploads/2026/03/P_CarletonPhotography_MensBas...http/1.1
cdn.carleton.ca/rds/assets/graphics/cu-waves-hard-edge-black.svghttp/1.1
carleton.ca/wp-content/uploads/2024/10/carrie-cho-2000x1334-1-768x512.jpghttp/1.1
cdn.carleton.ca/rds/assets/graphics/quote-red-10.svghttp/1.1
cdn.carleton.ca/rds/assets/graphics/cu-waves-footer-red.svghttp/1.1
/wp-content/uploads/2026/03/my-afromania-1200x800-1-1024x...http/1.1
/wp-content/uploads/2026/04/real-world-investment-lessons...http/1.1
carleton.ca/wp-content/uploads/2024/10/undergradute-admissions-300x200-1.jpghttp/1.1
carleton.ca/wp-content/uploads/2024/10/attend-300x200-1.jpghttp/1.1
carleton.ca/wp-content/uploads/2024/10/continuing-education-300x200-1.jpghttp/1.1
carleton.ca/wp-content/uploads/2024/10/attend-300x200-5.jpghttp/1.1
cdn.carleton.ca/cu-media/videos/banner/campus-2025.webmhttp/1.1
carleton.ca/wp-content/themes/cutheme-twig/src/json/cu-search.jsonhttp/1.1
cdn.carleton.ca/rds/assets/favicons/favicon-32x32.pnghttp/1.1

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
/gutenberg/cutheme-twig/cutheme-styles.css.gz?ver=0.39.141.5 KiB660 ms
carleton.ca/wp-content/themes/cutheme-twig/src/scripts/search-autosuggest.js2.4 KiB170 ms

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

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
Feature Celebrating Ottawa’s Rising Business Leaders Five Carleton community … body.home > main#main-content > section.box-border > section.w-screen
0.250
Join a Smart, Caring Community Find your people and your purpose with our new … body.home > main#main-content
0.025
About Admissions Academics Research Priorities Future Students Browse Apply Don… header.sticky > nav.cu-nav--top > div.flex > div.cu-nav__aside
0.006
Alumna Catherine Sinclair reflects on how her Carleton education led to a leade… div.space-y-6 > div.cu-column > div.not-prose > div.flex
0.001

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

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: 0.0 ms 33.8 KiB
URLTransfer SizeEst Savings
/gutenberg/cutheme-twig/cutheme-styles.css.gz?ver=0.39.141.0 KiB33.8 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: 0.0 ms 633.9 KiB
URLTransfer SizeEst Savings
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js120.9 KiB93.1 KiB
www.googletagmanager.com/gtag/js?id=G-BDW6WNFPJQ&cx=c&gtm=4e64k0176.6 KiB70.0 KiB
www.googletagmanager.com/gtag/destination?id=AW-489059193&cx=c&gtm=4e64k0144.2 KiB67.8 KiB
www.googletagmanager.com/gtag/js?id=G-9NTBQTVYKG&cx=c&gtm=4e64k0157.3 KiB65.6 KiB
www.googletagmanager.com/gtag/js?id=G-GPRE4N72YN&cx=c&gtm=4e64k0151.4 KiB63.9 KiB
www.googletagmanager.com/gtag/destination?id=AW-513270063&cx=c&gtm=4e64k0133.9 KiB61.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-MH632FV191.2 KiB61.2 KiB
www.googletagmanager.com/gtag/js?id=AW-922400606&cx=c&gtm=4e64k0146.8 KiB60.7 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js109.2 KiB56.3 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB33.8 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
cdn.carleton.ca/cu-media/videos/banner/campus-2025.webm5.8 MiB
cdn.carleton.ca/cu-media/videos/banner/campus-2025.webm2.6 MiB
www.youtube.com/s/player/1bb6ee63/player_embed.vflset/en_US/base.js471.9 KiB
www.youtube.com/s/player/1bb6ee63/player_embed_es6.vflset/en_US/base.js436.0 KiB
/s/_/ytembeds/_/js/k=ytembeds.base.en_US.-RE1iC8VNhI.es5....202.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-MH632FV191.6 KiB
/s/_/ytembeds/_/js/k=ytembeds.base.en_US.5f0apfZzpOA.2021...183.1 KiB
www.googletagmanager.com/gtag/js?id=G-BDW6WNFPJQ&cx=c&gtm=4e64k0176.6 KiB
www.googletagmanager.com/gtag/js?id=G-9NTBQTVYKG&cx=c&gtm=4e64k0157.3 KiB
/s/_/ytembeds/_/js/k=ytembeds.base.en_US.-RE1iC8VNhI.es5....156.2 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
Logo of Carleton University footer.cu-footerstandard > div.flex > div.grid > img.w-auto
cdn.carleton.ca/rds/assets/cu-logos/cu-logo-color-vertical-outlined.svg
Carleton div#footer-links > div > a.w-16 > img.w-16
cdn.carleton.ca/rds/assets/ravens-logos/ravens-logo.svg

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

●Max Potential First Input Delay 90 ms
●Document request latency
●Optimize DOM size
●LCP breakdown
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 21 user timings
●JavaScript execution time 0.7 s
●Minimizes main-thread work 1.4 s
●Avoid long main-thread tasks 7 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 120 ms
●Server Backend Latencies 170 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 140 ms
○INP breakdown
○Avoid non-composited animations
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>`
●`[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.
●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
●`<frame>` or `<iframe>` elements have a title
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Links have a discernible name
●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.
●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.
●Elements with visible text labels have matching accessible names.
○`[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
○`<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.
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
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.
a.tribalfusion.com/pixel/tags/Carleton%20University/797213/pixel.js line 113, col 39
Fledge
a.tribalfusion.com/pixel/tags/Carleton%20University/797213/pixel.js line 113, col 39
AttributionReporting
snap.licdn.com/li.lms-analytics/insight.min.js
●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

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
carleton.ca/news/2026/obj-ottawa-forty-under-40-2026/Read More
/news/2026/carleton-researchers-lead-13-5-million-project...Read More
carleton.ca/news/story/carleton-grad-catherine-sinclair-national-gallery/Read More
carleton.ca/news/story/my-afromania-international-business/Read More
/carleton-student-investment-fund-sprott/?utm_medium=webs...Read More
admissions.carleton.ca/Learn More
graduate.carleton.ca/Learn More
carleton.ca/continuing-professional/Learn More
carleton.ca/future-edge/Learn More

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

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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