Lighthouse Desktop

· 0 checks — Desktop 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.

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:0.513045] map[node:map[boundingRect:map[bottom:864 height:759 left:0 right:1350 top:105 width:1350] lhId:page-1-VIDEO nodeLabel:Various scenes of students at U.N.L.V. path:1,HTML,1,BODY,3,DIV,3,DIV,0,DIV,1,DIV,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,SECTION,0,DIV,0,VIDEO selector:div.field > section#introduction > div.embed-responsive > video#hero-video-283863 snippet:<video id="hero-video-283863" class="hero-video" aria-label="Various scenes of students at U.N.L.V." preload="auto" autoplay="" muted="" loop="" tabindex="0"> type:node] score:0.512334 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1938 height:901 left:0 right:1350 top:1038 width:1350] lhId:page-11-IMG nodeLabel:Student wearing V.R. headset path:1,HTML,1,BODY,3,DIV,3,DIV,0,DIV,1,DIV,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,2,SECTION,0,DIV,0,PICTURE,7,IMG selector:section#innovative-academics > div.layer-image > picture > img snippet:<img src="https://www.unlv.edu/sites/default/files/media/image/2025-12/academics-D76…" alt="Student wearing V.R. headset"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:998 height:29 left:120 right:353 top:969 width:233] lhId:page-5-DIV nodeLabel:Visit Campus path:1,HTML,1,BODY,3,DIV,3,DIV,0,DIV,1,DIV,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,SECTION,0,DIV,0,DIV,1,DIV,0,DIV,1,DIV,1,DIV selector:div.col-xs-6 > div.click-region > div.stat > div.h4 snippet:<div class="h4 margin-top-sm"> type:node] score:0.000549 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1938 height:901 left:0 right:1350 top:1038 width:1350] lhId:page-11-IMG nodeLabel:Student wearing V.R. headset path:1,HTML,1,BODY,3,DIV,3,DIV,0,DIV,1,DIV,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,2,SECTION,0,DIV,0,PICTURE,7,IMG selector:section#innovative-academics > div.layer-image > picture > img snippet:<img src="https://www.unlv.edu/sites/default/files/media/image/2025-12/academics-D76…" alt="Student wearing V.R. headset"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:22 height:12 left:948 right:1260 top:10 width:312] lhId:page-2-UL nodeLabel:STUDENTS FACULTY/STAFF ALUMNI DONORS path:1,HTML,1,BODY,3,DIV,0,NAV,0,DIV,0,DIV,0,DIV,2,DIV,0,UL selector:div.container > div.row > div#audience-container > ul#audience snippet:<ul class="audience-menu menu--menu-audiences" id="audience"> type:node] score:0.000106 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1938 height:901 left:0 right:1350 top:1038 width:1350] lhId:page-11-IMG nodeLabel:Student wearing V.R. headset path:1,HTML,1,BODY,3,DIV,3,DIV,0,DIV,1,DIV,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,2,SECTION,0,DIV,0,PICTURE,7,IMG selector:section#innovative-academics > div.layer-image > picture > img snippet:<img src="https://www.unlv.edu/sites/default/files/media/image/2025-12/academics-D76…" alt="Student wearing V.R. headset"> type:node]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/robotocondensed/v31/ieVl2ZhZI2eCN5jzbjEETS9weq8-19K7DQk6YvM.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/robotoslab/v36/BngMUXZYTXPIvIBgJJSb6ufN5qWr4xCC.woff2]]] type:subitems]] map[node:map[boundingRect:map[bottom:954 height:54 left:495 right:563 top:900 width:68] lhId:page-8-I nodeLabel:div.click-region > div.stat > div.stat-icon > i.fa-solid path:1,HTML,1,BODY,3,DIV,3,DIV,0,DIV,1,DIV,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,SECTION,0,DIV,0,DIV,2,DIV,0,DIV,1,DIV,0,DIV,0,I selector:div.click-region > div.stat > div.stat-icon > i.fa-solid snippet:<i class="fa-solid fa-user-check fa-3x" aria-hidden="true"> type:node] score:5.6e-05 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1938 height:901 left:0 right:1350 top:1038 width:1350] lhId:page-11-IMG nodeLabel:Student wearing V.R. headset path:1,HTML,1,BODY,3,DIV,3,DIV,0,DIV,1,DIV,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,2,SECTION,0,DIV,0,PICTURE,7,IMG selector:section#innovative-academics > div.layer-image > picture > img snippet:<img src="https://www.unlv.edu/sites/default/files/media/image/2025-12/academics-D76…" alt="Student wearing V.R. headset"> type:node]]] type:subitems]]]

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.

URL	Est Savings
/s/robotocondensed/v31/ieVl2ZhZI2eCN5jzbjEETS9weq8-19K7DQ...	80 ms
fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	75 ms
fonts.gstatic.com/s/robotoslab/v36/BngMUXZYTXPIvIBgJJSb6ufN5qWr4xCC.woff2	75 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-brands-400-0.woff2	40 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-13.woff2	35 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-sharp-solid-900-12.woff2	35 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-1.woff2	35 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-regular-400-14.woff2	35 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-16.woff2	35 ms

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
Lied Library with the Las Vegas strip in the background `section#worldwide-destination > div.layer-image > picture > img`	/sites/default/files/media/image/2025-08/worldwide_destin...	353.7 KiB	140.9 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-VIDEO

nodeLabel: Various scenes of students at U.N.L.V.

path: 1,HTML,1,BODY,3,DIV,3,DIV,0,DIV,1,DIV,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,SECTION,0,DIV,0,VIDEO

selector: div.field > section#introduction > div.embed-responsive > video#hero-video-283863

snippet: <video id="hero-video-283863" class="hero-video" aria-label="Various scenes of students at U.N.L.V." preload="auto" autoplay="" muted="" loop="" tabindex="0">

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
/css?family=Roboto:400,100,300,500,700\|Roboto+Condensed:4...	2.9 KiB	290 ms
/npm/@unicorn-fail/drupal-bootstrap-styles@0.0.2/dist/3.4...	3.9 KiB
/npm/@unicorn-fail/drupal-bootstrap-styles@0.0.2/dist/3.3...	3.4 KiB
cdn.jsdelivr.net/npm/entreprise7pro-bootstrap@3.4.8/dist/css/bootstrap.min.css	20.0 KiB	272 ms
/npm/@unicorn-fail/drupal-bootstrap-styles@0.0.2/dist/3.2...	3.6 KiB
/npm/@unicorn-fail/drupal-bootstrap-styles@0.0.2/dist/3.2...	3.5 KiB
/npm/@unicorn-fail/drupal-bootstrap-styles@0.0.2/dist/3.1...	3.4 KiB
/npm/@unicorn-fail/drupal-bootstrap-styles@0.0.2/dist/3.1...	3.3 KiB
/npm/@unicorn-fail/drupal-bootstrap-styles@0.0.2/dist/3.3...	3.5 KiB
/sites/default/files/css/css_5c96egx3jTllSTYHPFWbUdHOw-qd...	57.8 KiB	162 ms
/sites/default/files/css/css_FxrKcQ7_rkuhHsuASpo6l3bTgLfa...	4.6 KiB
/sites/default/files/asset_injector/js/rfi_catchall-12236...	1.7 KiB
/sites/default/files/asset_injector/css/webform-dd6b84ce7...	352 B
/sites/default/files/css/css_XN_FX815l5eyMNYxrm4jm2JJ1u5U...	1.6 KiB
/sites/default/files/asset_injector/css/rfi-58a1a0ffd3cc4...	579 B
/sites/default/files/asset_injector/css/calendar-e2f7898b...	709 B
/sites/default/files/css/css_NC-7mZzsbacZjxvjtDnrhL_lNBla...	532 B
/sites/default/files/asset_injector/css/admin_overrides-e...	1.5 KiB
/sites/default/files/css/css_2Ef4FzHopLQQYh9vihrrVodYIv_J...	919 B
/sites/default/files/css/css_2wR8pHMKyVFmI6kbFetoRINTn6OV...	13.8 KiB
/sites/default/files/css/css_LRYMCAiMqw3c6vtF4tNHazpDLCf9...	633 B

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
/signals/config/1120466292801033?v=2.9.303&r=stable&domai...	1200.0 s	127.0 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
www.google-analytics.com/analytics.js	7200.0 s	20.9 KiB
scripts.clarity.ms/0.8.59/clarity.js	86400.0 s	26.2 KiB
kit.fontawesome.com/aa88d99ea8.js	60.0 s	5.7 KiB
siteimproveanalytics.com/js/siteanalyze_66356264.js	86400.0 s	8.8 KiB
cse.google.com/cse.js?cx=002367027510554248077:krw4pudpzig	0.0 ms	3.4 KiB
www.google.com/cse/static/style/look/v6/default.css	3000.0 s	1.2 KiB
/tr/?id=1120466292801033&ev=PageView&dl=https%3A%2F%2Fwww...	0.0 ms	19 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.

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: 209 ms

URL	Time Spent
unlv.edu/	209 ms
www.unlv.edu/	0.0 ms

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.

Element	Layout shift score
Various scenes of students at U.N.L.V. `div.field > section#introduction > div.embed-responsive > video#hero-video-283863`	0.512
Visit Campus `div.col-xs-6 > div.click-region > div.stat > div.h4`	0.001
STUDENTS FACULTY/STAFF ALUMNI DONORS `div.container > div.row > div#audience-container > ul#audience`	0.000
div.click-region > div.stat > div.stat-icon > i.fa-solid `div.click-region > div.stat > div.stat-icon > i.fa-solid`	0.000

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: 60 ms 191.8 KiB

URL	Transfer Size	Est Savings
/! Font Awesome Pro 6.7.2 by @fontawesome - https://fontawesome.com * License - https://fontaw…	102.9 KiB	102.2 KiB
/sites/default/files/css/css_5c96egx3jTllSTYHPFWbUdHOw-qd...	57.5 KiB	55.0 KiB
www.google.com/cse/static/element/dc329f57de078f5d/default_v6+en.css	11.9 KiB	11.9 KiB
/! Font Awesome Pro 6.7.2 by @fontawesome - https://fontawesome.com * License - https://fontaw…	11.4 KiB	11.4 KiB
/sites/default/files/css/css_2wR8pHMKyVFmI6kbFetoRINTn6OV...	13.5 KiB	11.2 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: 60 ms 327.9 KiB

URL	Transfer Size	Est Savings
/sites/default/files/js/js_1sseqp-1GXLKfRKsuF0WPIVINuZ7Xq...	92.5 KiB	59.8 KiB
www.googletagmanager.com/gtag/js?id=G-SRFR29X4TS&cx=c&gtm=4e64k0	178.5 KiB	58.2 KiB
www.googletagmanager.com/gtm.js?id=GTM-N3KMGF	145.9 KiB	56.8 KiB
/cse/static/element/dc329f57de078f5d/cse_element__en.js?u...	102.7 KiB	51.5 KiB
/signals/config/1120466292801033?v=2.9.303&r=stable&domai...	126.8 KiB	36.6 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	33.5 KiB
cse.google.com/adsense/search/async-ads.js	43.3 KiB	31.5 KiB

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 3.3 KiB

URL	Transfer Size	Est Savings
www.google.com/cse/static/element/dc329f57de078f5d/default_v6+en.css	12.0 KiB	3.3 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.

URL	Transfer Size
www.unlv.edu/sites/default/files/media/video/2026-02/homepage_2026_mar.mp4	13.2 MiB
/sites/default/files/media/image/2025-08/worldwide_destin...	354.2 KiB
/sites/default/files/media/image/2023-07/ready_rebel-D719...	202.6 KiB
/sites/default/files/media/image/2025-12/academics-D76323...	182.4 KiB
www.googletagmanager.com/gtag/js?id=G-SRFR29X4TS&cx=c&gtm=4e64k0	178.5 KiB
/sites/default/files/media/image/2025-12/campus_life-D752...	162.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-N3KMGF	146.2 KiB
/signals/config/1120466292801033?v=2.9.303&r=stable&domai...	127.0 KiB
/cse/static/element/dc329f57de078f5d/cse_element__en.js?u...	102.7 KiB
connect.facebook.net/en_US/fbevents.js	96.6 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
Student wearing V.R. headset `section#innovative-academics > div.layer-image > picture > img`	/sites/default/files/media/image/2025-12/academics-D76323...
Lied Library with the Las Vegas strip in the background `section#worldwide-destination > div.layer-image > picture > img`	/sites/default/files/media/image/2025-08/worldwide_destin...
Students walking on campus `section#campus-life > div.layer-image > picture > img`	/sites/default/files/media/image/2025-12/campus_life-D752...
Closeup of pom poms `section#ready > div.layer-image > picture > img`	/sites/default/files/media/image/2023-07/ready_rebel-D719...

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

●Max Potential First Input Delay 120 ms

●Optimize DOM size

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify JavaScript

●User Timing marks and measures 5 user timings

●JavaScript execution time 0.5 s

●Minimizes main-thread work 1.2 s

●Avoid long main-thread tasks 3 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 100 ms

●Server Backend Latencies 140 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 10 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.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Apply Now `div.col-xs-6 > div.click-region > div.click-region-link > a.apply_now_icon`

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●Form elements have associated labels

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●ARIA attributes are used as specified for the element's role

●`[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 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.

●`[lang]` attributes have a valid value

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●`<video>` elements contain a `<track>` element with `[kind="captions"]`

●Uses ARIA roles only on compatible elements

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Links are distinguishable without relying on color.

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○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.

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Image elements do not have `[alt]` attributes that are redundant text.

○Identical links have the same purpose.

○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	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

●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

●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`