Lighthouse Mobile

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

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.

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.

	URL	Resource Size	Est Savings
CU Boulder Commencement at Folsom Field. The field is filled with graduating st… `div.text-block-body > div > div.imageMediaStyle > img`	/sites/default/files/styles/large_image_style/public/2025...	253.1 KiB	225.3 KiB
Apply for Admission `div#block-boulder-base-content > article.node > div > div.ucb-bootstrap-layout-section`	/sites/default/files/styles/section_background/public/202...	408.1 KiB	108.1 KiB
Chip the buffalo mascot, wearing a graduation robe, driving a golf cart `div.campus-news-article-grid > div.campus-news-article-thumbnail > a > img.campus-news-article-thumbnail-image`	/today/sites/default/files/styles/focal_image_wide/public...	149.2 KiB	107.2 KiB
Students in a CU Boulder classroom, listening to a lecture by an instructor. `div.text-block-body > div > div.imageMediaStyle > img`	/sites/default/files/styles/large_image_style/public/2025...	120.1 KiB	98.4 KiB
person shopping at a grocery store `div.campus-news-article-grid > div.campus-news-article-thumbnail > a > img.campus-news-article-thumbnail-image`	/today/sites/default/files/styles/focal_image_wide/public...	85.0 KiB	61.1 KiB
Family taking photos of a grad on campus `div.campus-news-article-grid > div.campus-news-article-thumbnail > a > img.campus-news-article-thumbnail-image`	/today/sites/default/files/styles/focal_image_wide/public...	83.0 KiB	59.6 KiB
Jeff and Orsi Crawford `div.campus-news-article-grid > div.campus-news-article-thumbnail > a > img.campus-news-article-thumbnail-image`	/today/sites/default/files/styles/focal_image_wide/public...	68.8 KiB	49.4 KiB
the class walked by solar panels `div.campus-news-article-grid > div.campus-news-article-thumbnail > a > img.campus-news-article-thumbnail-image`	/today/sites/default/files/styles/focal_image_wide/public...	66.3 KiB	47.6 KiB
New Buffalo Chip ice cream flavor at Sweet Cow `div.campus-news-article-grid > div.campus-news-article-thumbnail > a > img.campus-news-article-thumbnail-image`	/today/sites/default/files/styles/focal_image_wide/public...	54.9 KiB	39.5 KiB
Curiosity makes us Boulder `div.text-block-body > div > div.imageMediaStyle > img`	/sites/default/files/styles/large_image_style/public/2025...	39.7 KiB	32.6 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-1-DIV

nodeLabel: Apply for Admission

path: 1,HTML,1,BODY,2,DIV,0,DIV,3,DIV,0,MAIN,1,DIV,1,DIV,0,DIV,0,DIV,0,ARTICLE,1,DIV,1,DIV

selector: div#block-boulder-base-content > article.node > div > div.ucb-bootstrap-layout-section

snippet: <div class="ucb-bootstrap-layout-section section-69b423dadd038 ucb-bootstrap-layout__b…" style="">

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.

URL	Transfer Size	Duration
/css2?family=Roboto+Condensed:wght@400;700&family=Roboto:...	2.3 KiB	817 ms
www.colorado.edu/modules/contrib/google_tag/js/gtag.js?tdkbvu	940 B
www.colorado.edu/modules/contrib/google_tag/js/gtm.js?tdkbvu	849 B
/sites/default/files/js/js_CC4KsJy_65gAP8ed2fsjJTDolBLgDb...	563 B
/sites/default/files/css/css_I4ZG2ks9Ve9_knrzGyrf58G4nmiO...	10.3 KiB	150 ms
/sites/default/files/css/css_AzWWGlWtft6L_7Tycff7EdJujNVT...	8.4 KiB	150 ms
/sites/default/files/css/css_p44OPYw9nazEbwYkmtTi1gc-pgbO...	62.1 KiB	750 ms
/sites/default/files/css/css_3Y5Q0i9r8xO3VejEVDkFp-Uglvvs...	6.1 KiB

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.

Request	Cache TTL	Transfer Size
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
/signals/config/1056901894858860?v=2.9.303&r=stable&domai...	1200.0 s	44.4 KiB
/signals/config/321674124873715?v=2.9.303&r=stable&domain...	1200.0 s	18.0 KiB
pixel.byspotify.com/ping.min.js	3600.0 s	10.2 KiB
snap.licdn.com/li.lms-analytics/insight.min.js	86400.0 s	18.7 KiB
js.ipredictive.com/viant_universal_pixel.js	0.0 ms	3.5 KiB
ugrad.apply.colorado.edu/ping	1789.0 s	968 B
grad.apply.colorado.edu/ping	1789.0 s	966 B
/collect?v=2&fmt=js&pid=55748%2C3579548&time=177679954079...	0.0 ms	691 B
/config/edu/7d749711-ff5b-4a55-9671-36852d3140af.js?v=3.5...	0.0 ms	455 B
/tr/?id=1056901894858860&ev=PageView&dl=https%3A%2F%2Fwww...	0.0 ms	19 B
/tr/?id=321674124873715&ev=PageView&dl=https%3A%2F%2Fwww....	0.0 ms	16 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.

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: 752 ms

URL	Time Spent
colorado.edu/	752 ms
www.colorado.edu/	0.0 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

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: 600 ms 60.6 KiB

URL	Transfer Size	Est Savings
/sites/default/files/css/css_p44OPYw9nazEbwYkmtTi1gc-pgbO...	61.8 KiB	60.6 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: 450 ms 631.9 KiB

URL	Transfer Size	Est Savings
/_/translate_http/_/js/k=translate_http.tr.es.eNjH1Jo6ldQ...	118.2 KiB	93.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-M3DX2QP	192.7 KiB	73.1 KiB
www.googletagmanager.com/gtag/js?id=G-WW2LE17NC1&cx=c&gtm=4e64h1	168.8 KiB	64.4 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOA.js	116.8 KiB	63.6 KiB
www.googletagmanager.com/gtag/js?id=AW-958535370&cx=c&gtm=4e64h1	144.6 KiB	63.6 KiB
www.googletagmanager.com/gtag/destination?id=DC-12399946&cx=c&gtm=4e64h1	130.8 KiB	60.1 KiB
www.googletagmanager.com/gtag/destination?id=AW-10798108385&cx=c&gtm=4e64h1	137.5 KiB	60.0 KiB
www.googletagmanager.com/gtag/destination?id=DC-12320119&cx=c&gtm=4e64h1	131.0 KiB	57.4 KiB
/sites/default/files/js/js_UAM_9otwUAyHzZOeb4woD4suuEdijC...	53.8 KiB	39.2 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	31.9 KiB
www.colorado.edu/core/assets/vendor/jquery/jquery.min.js?v=4.0.0	31.4 KiB	24.9 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.

URL	Total CPU Time	Script Evaluation	Script Parse
www.colorado.edu/	1.5 s	8.7 ms	2.0 ms
Unattributable	693 ms	119 ms	0.0 ms
www.googletagmanager.com/gtm.js?id=GTM-M3DX2QP	540 ms	448 ms	68 ms
/modules/custom/ucb_third_party_libraries/js/FontAwesome/...	367 ms	186 ms	135 ms
www.googletagmanager.com/gtag/js?id=G-WW2LE17NC1&cx=c&gtm=4e64h1	301 ms	254 ms	44 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOA.js	271 ms	223 ms	46 ms
www.googletagmanager.com/gtag/destination?id=DC-12320119&cx=c&gtm=4e64h1	239 ms	199 ms	38 ms
www.googletagmanager.com/gtag/js?id=AW-958535370&cx=c&gtm=4e64h1	211 ms	175 ms	35 ms
/_/translate_http/_/js/k=translate_http.tr.es.eNjH1Jo6ldQ...	210 ms	156 ms	40 ms
www.googletagmanager.com/gtag/destination?id=DC-12399946&cx=c&gtm=4e64h1	203 ms	173 ms	29 ms
www.googletagmanager.com/gtag/destination?id=AW-10798108385&cx=c&gtm=4e64h1	192 ms	155 ms	36 ms
sc-static.net/scevent.min.js	146 ms	134 ms	5.9 ms
/signals/config/1056901894858860?v=2.9.303&r=stable&domai...	142 ms	122 ms	19 ms
connect.facebook.net/en_US/fbevents.js	135 ms	103 ms	30 ms
/sites/default/files/js/js_UAM_9otwUAyHzZOeb4woD4suuEdijC...	125 ms	60 ms	13 ms
snap.licdn.com/li.lms-analytics/insight.min.js	86 ms	60 ms	21 ms
/signals/config/321674124873715?v=2.9.303&r=stable&domain...	60 ms	49 ms	8.8 ms
analytics.tiktok.com/i18n/pixel/static/identify_5cff1caf.js	58 ms	34 ms	23 ms
/sites/default/files/css/css_p44OPYw9nazEbwYkmtTi1gc-pgbO...	52 ms	0.0 ms	0.0 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.

Category	Time Spent
Script Evaluation	2.8 s
Other	1.2 s
Style & Layout	734 ms
Script Parsing & Compilation	623 ms
Rendering	187 ms
Parse HTML & CSS	87 ms
Garbage Collection	48 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.

URL	Transfer Size
/modules/custom/ucb_third_party_libraries/js/FontAwesome/...	633.0 KiB
/sites/default/files/styles/section_background/public/202...	408.9 KiB
/sites/default/files/styles/large_image_style/public/2025...	253.7 KiB
/sites/default/files/styles/section_background/public/202...	200.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-M3DX2QP	193.0 KiB
www.googletagmanager.com/gtag/js?id=G-WW2LE17NC1&cx=c&gtm=4e64h1	168.9 KiB
/today/sites/default/files/styles/focal_image_wide/public...	149.7 KiB
www.googletagmanager.com/gtag/js?id=AW-958535370&cx=c&gtm=4e64h1	144.7 KiB
www.googletagmanager.com/gtag/destination?id=AW-10798108385&cx=c&gtm=4e64h1	137.6 KiB
www.googletagmanager.com/gtag/destination?id=DC-12320119&cx=c&gtm=4e64h1	131.1 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
Jeff and Orsi Crawford `div.campus-news-article-grid > div.campus-news-article-thumbnail > a > img.campus-news-article-thumbnail-image`	/today/sites/default/files/styles/focal_image_wide/public...
person shopping at a grocery store `div.campus-news-article-grid > div.campus-news-article-thumbnail > a > img.campus-news-article-thumbnail-image`	/today/sites/default/files/styles/focal_image_wide/public...
Chip the buffalo mascot, wearing a graduation robe, driving a golf cart `div.campus-news-article-grid > div.campus-news-article-thumbnail > a > img.campus-news-article-thumbnail-image`	/today/sites/default/files/styles/focal_image_wide/public...
the class walked by solar panels `div.campus-news-article-grid > div.campus-news-article-thumbnail > a > img.campus-news-article-thumbnail-image`	/today/sites/default/files/styles/focal_image_wide/public...
New Buffalo Chip ice cream flavor at Sweet Cow `div.campus-news-article-grid > div.campus-news-article-thumbnail > a > img.campus-news-article-thumbnail-image`	/today/sites/default/files/styles/focal_image_wide/public...
Family taking photos of a grad on campus `div.campus-news-article-grid > div.campus-news-article-thumbnail > a > img.campus-news-article-thumbnail-image`	/today/sites/default/files/styles/focal_image_wide/public...
Be Boulder. `div.ucb-footer > p > a > img.ucb-footer-be-boulder`	cdn.colorado.edu/static/brand-assets/live/images/be-boulder-white.svg
University of Colorado Boulder `div.container > div.ucb-brand-bar > a.ucb-home-link > img.ucb-logo`	cdn.colorado.edu/static/brand-assets/live/images/cu-boulder-logo-text-white.svg

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

●Layout shift culprits

●Optimize DOM size

●Font display

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 13 user timings

●Avoid long main-thread tasks 20 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 160 ms

●Server Backend Latencies 160 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 2 layout shifts found

○INP breakdown

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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
CU Athletics to receive $6M gift to elevate student experience, campus excellen… `campus-news > div.row > div.campus-news-article-grid > a`
Read more `div.row > div.campus-news-article-grid > p.campus-news-article-summary > a`
Advice from Sustainable Buffs on being a conscious consumer `campus-news > div.row > div.campus-news-article-grid > a`
Read more `div.row > div.campus-news-article-grid > p.campus-news-article-summary > a`
Volunteer for commencement events May 1–3 `campus-news > div.row > div.campus-news-article-grid > a`
Read more `div.row > div.campus-news-article-grid > p.campus-news-article-summary > a`
Colorado snowpack tells a troubling story for water and wildfire in the West `campus-news > div.row > div.campus-news-article-grid > a`
Read more `div.row > div.campus-news-article-grid > p.campus-news-article-summary > a`
Buffalo Chip: CU Boulder, Sweet Cow serve up a sweet celebration `campus-news > div.row > div.campus-news-article-grid > a`
Read more `div.row > div.campus-news-article-grid > p.campus-news-article-summary > a`
What to expect during Grad Days 2026 `campus-news > div.row > div.campus-news-article-grid > a`
Read more `div.row > div.campus-news-article-grid > p.campus-news-article-summary > a`
Read more at CU Boulder Today `div.container > campus-news > div.ucb-campus-news-grid-link-container > a.ucb-campus-news-grid-link`

These are opportunities to improve the legibility of your content.

Names and labels

Form elements without effective labels can create frustrating experiences for screen reader users. Learn more about the `select` element.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Translate English Spanish Chinese French German Korean Lao Nepali Japanese Tibe… `div.container > div.ucb-brand-bar > div.ucb-brand-bar-controls > select.ucb-lang-select`

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.text-block-body > div > p.text-align-center > a `div.text-block-body > div > p.text-align-center > a`
div.text-block-body > div > p.text-align-center > a `div.text-block-body > div > p.text-align-center > a`
div.text-block-body > div > p.text-align-center > a `div.text-block-body > div > p.text-align-center > a`
div.text-block-body > div > p.text-align-center > a `div.text-block-body > div > p.text-align-center > a`
div.text-block-body > div > p.text-align-center > a `div.text-block-body > div > p.text-align-center > a`

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Best practices

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
University of Colorado Boulder `div.ucb-footer > div#block-site-contact-info-footer > span.h5 > a`

These items highlight common accessibility best practices.

○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

●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.

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●No element has a `[tabindex]` value greater than 0

●Heading elements appear in a sequentially-descending order

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●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

○Form elements have associated labels

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○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.

○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.

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

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.

URL
/modules/custom/ucb_third_party_libraries/js/FontAwesome/...

●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 DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

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 destination	Link Text
/today/2026/04/17/cu-athletics-receive-6m-gift-elevate-st...	Read more
/today/2026/04/15/advice-sustainable-buffs-being-consciou...	Read more
www.colorado.edu/today/2026/04/14/volunteer-commencement-events-may-1-3	Read more
/today/2026/04/13/colorado-snowpack-tells-troubling-story...	Read more
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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`