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Lighthouse Desktop

· 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.

59

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
/vu-news/files/20260406102539/2026-Keegan-Travelling-Fell...86400.0 s1.8 MiB
/wp-content/uploads/sites/3/2026/03/e37927b196c2a0d506403...0.0 ms571.3 KiB
/wp-content/uploads/sites/3/2021/06/downtown-nashville-ae...0.0 ms552.4 KiB
www.vanderbilt.edu/wp-content/uploads/sites/3/2021/04/bronson-ingram-facade.jpg0.0 ms452.9 KiB
/wp-content/uploads/sites/3/2026/03/06ae58bc640de4d363cb2...0.0 ms309.6 KiB
cdn.vanderbilt.edu/vu-news/files/20260330115225/20260324HM0059-scaled.jpg86400.0 s706.1 KiB
/wp-content/uploads/sites/3/2021/07/person-book-library-1...0.0 ms281.8 KiB
/wp-content/uploads/sites/3/2021/04/graduation-line-1800x...0.0 ms256.6 KiB
/wp-content/uploads/sites/3/2026/03/9af6eb1733819344a3809...0.0 ms254.7 KiB
cdn.vanderbilt.edu/vu-news/files/20260326080837/QP-Mariah-Kramer.jpg86400.0 s522.7 KiB
cdn.vanderbilt.edu/vu-news/files/20260408193616/QP-Robert-Talisse.jpg86400.0 s483.6 KiB
/wp-content/uploads/sites/3/2026/03/d9a927204eb7ef7ac806f...0.0 ms192.6 KiB
www.vanderbilt.edu/wp-content/uploads/sites/3/2021/06/graduation-line.jpg0.0 ms143.0 KiB
/wp-content/uploads/sites/3/2021/06/student-biking-with-g...0.0 ms124.2 KiB
www.vanderbilt.edu/wp-content/uploads/sites/3/2021/06/person-book-library-1.jpg0.0 ms110.9 KiB
/vu-news/files/20260409104636/Asness-Summit-Primary-Black...86400.0 s249.8 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
cdn.vanderbilt.edu/vu-futurevu/assets/vu.js?ver=2026032386400.0 s166.4 KiB
www.vanderbilt.edu/wp-content/uploads/sites/3/2021/06/professor-in-classroom.jpg0.0 ms46.4 KiB
/wp-content/uploads/sites/3/2025/10/running-400x400-c-def...0.0 ms38.4 KiB
www.vanderbilt.edu/wp-content/uploads/sites/3/2025/10/band-400x400-c-default.jpg0.0 ms36.8 KiB
/vu-futurevu/static/fonts/JJannon/complete/JJannon-Displa...86400.0 s81.4 KiB
/vu-futurevu/static/fonts/JJannon/complete/JJannon-Displa...86400.0 s81.2 KiB
cdn.vanderbilt.edu/vu-futurevu/assets/vu.css?ver=2026032386400.0 s78.1 KiB
www.vanderbilt.edu/wp-includes/js/jquery/jquery.min.js?ver=3.6.10.0 ms31.0 KiB
/signals/config/209898002704302?v=2.9.303&r=stable&domain...1200.0 s23.2 KiB
/vu-futurevu/static/fonts/Theinhardt/complete/Theinhardt-...86400.0 s50.5 KiB
/vu-futurevu/static/fonts/Theinhardt/complete/Theinhardt-...86400.0 s50.2 KiB
/vu-futurevu/static/fonts/Theinhardt/complete/Theinhardt-...86400.0 s49.5 KiB
/vu-futurevu/static/fonts/Academica/complete/AcademicaLig...86400.0 s43.5 KiB
www.vanderbilt.edu/wp-content/plugins/page-links-to/dist/new-tab.js?ver=3.3.70.0 ms12.7 KiB
www.vanderbilt.edu/wp-includes/css/dist/block-library/style.min.css?ver=6.1.100.0 ms11.9 KiB
/vu-futurevu/static/fonts/Staff/complete/StaffXXCondensed...86400.0 s27.6 KiB
/vu-video/vu-home/Homepage_Feb2026_ADA-Compliant_FinalH26...86400.0 s23.5 KiB
/wp-content/uploads/sites/3/bb-plugin/cache/8055-layout.j...0.0 ms8.9 KiB
cdn.hu-manity.co/hu-display.min.js604800.0 s80.4 KiB
cdn.hu-manity.co/hu-consent.min.js604800.0 s77.2 KiB
/wp-content/themes/anchordown-futurevu/library/scripts/st...0.0 ms6.3 KiB
static.hotjar.com/c/hotjar-3146100.js?sv=760.0 s6.2 KiB
cdn.hu-manity.co/hu-banner.min.js604800.0 s44.6 KiB
www.vanderbilt.edu/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.3.20.0 ms4.4 KiB
/wp-content/themes/anchordown-futurevu-child-big-vanderbi...0.0 ms2.9 KiB
/wp-content/themes/anchordown-futurevu/library/scripts/ho...0.0 ms1.1 KiB
www.vanderbilt.edu/wp-content/themes/anchordown-futurevu/style.css?ver=1.0.00.0 ms997 B
www.vanderbilt.edu/wp-includes/css/classic-themes.min.css?ver=10.0 ms655 B
cdn.vanderbilt.edu/vu-www4/brandbar/emergency-fv.js86400.0 s1.3 KiB
/tr/?id=209898002704302&ev=PageView&dl=https%3A%2F%2Fwww....0.0 ms19 B
/vu-video/vu-home/Homepage_Feb2026_ADA-Compliant_FinalH26...86400.0 s0 B
/vu-video/vu-home/Homepage_Feb2026_ADA-Compliant_FinalH26...86400.0 s0 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.

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:105.762 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
Image for Transformative exploration across continents and cultures: Meet the 2… ul.story-list__list > li.story-list__list-item > a.story-list__image-link > img
/vu-news/files/20260406102539/2026-Keegan-Travelling-Fell...1.8 MiB1.8 MiB
Image for Vanderbilt awards endowed chairs to 19 faculty members  ul.story-list__list > li.story-list__list-item > a.story-list__image-link > img
cdn.vanderbilt.edu/vu-news/files/20260330115225/20260324HM0059-scaled.jpg704.9 KiB693.2 KiB
Image for Quantum Potential Podcast, EPISODE 5: Life Through a Unique Lens: Mar… ul.story-list__list > li.story-list__list-item > a.story-list__image-link > img
cdn.vanderbilt.edu/vu-news/files/20260326080837/QP-Mariah-Kramer.jpg521.7 KiB508.4 KiB
Image for Quantum Potential Podcast, EPISODE 6: Reconnecting a divided democrac… ul.story-list__list > li.story-list__list-item > a.story-list__image-link > img
cdn.vanderbilt.edu/vu-news/files/20260408193616/QP-Robert-Talisse.jpg482.6 KiB449.4 KiB
Students on Lawn div.quick-guide__col-inner > div.quick-guide__cta > figure.quick-guide__cta-figure > img.quick-guide__cta-img
/wp-content/uploads/sites/3/2026/03/06ae58bc640de4d363cb2...308.8 KiB303.1 KiB
Image for Meet the leaders shaping today’s security challenges at the Asness Su… ul.story-list__list > li.story-list__list-item > a.story-list__image-link > img
/vu-news/files/20260409104636/Asness-Summit-Primary-Black...249.0 KiB242.2 KiB
div.hp-social > div.hp-social__inner > div.hp-social__block > div.hp-social__image div.hp-social > div.hp-social__inner > div.hp-social__block > div.hp-social__image
/wp-content/uploads/sites/3/2025/10/running-400x400-c-def...37.9 KiB11.9 KiB
Band div.hp-social > div.hp-social__inner > div.hp-social__block > div.hp-social__image
www.vanderbilt.edu/wp-content/uploads/sites/3/2025/10/band-400x400-c-default.jpg36.3 KiB10.3 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:919.363 label:Time to first byte subpart:timeToFirstByte] map[duration:289.267 label:Resource load delay subpart:resourceLoadDelay] map[duration:1076.26 label:Resource load duration subpart:resourceLoadDuration] map[duration:930.894 label:Element render delay subpart:elementRenderDelay]]
lhId: page-8-VIDEO
nodeLabel: div.site-content > div.topper-background > div.topper-background__video-block > video#vb_video
path: 4,HTML,2,BODY,4,DIV,1,DIV,0,DIV,0,VIDEO
selector: div.site-content > div.topper-background > div.topper-background__video-block > video#vb_video
snippet: <video id="vb_video" autoplay="" muted="" loop="" playsinline="" poster="">

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-8-VIDEO
nodeLabel: div.site-content > div.topper-background > div.topper-background__video-block > video#vb_video
path: 4,HTML,2,BODY,4,DIV,1,DIV,0,DIV,0,VIDEO
selector: div.site-content > div.topper-background > div.topper-background__video-block > video#vb_video
snippet: <video id="vb_video" autoplay="" muted="" loop="" playsinline="" poster="">

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

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: 924 ms
URLTime Spent
vanderbilt.edu/924 ms
www.vanderbilt.edu/0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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.

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.

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 6.9 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
Students on Lawn div.quick-guide__col-inner > div.quick-guide__cta > figure.quick-guide__cta-figure > img.quick-guide__cta-img
/wp-content/uploads/sites/3/2026/03/06ae58bc640de4d363cb2...
A beautiful, intimate campus in a thriving and exciting 21st century city. li.home-statements__list-item > a.home-statements__link > figure.home-statements__figure > img.home-statements__img
/wp-content/uploads/sites/3/2021/06/downtown-nashville-ae...
Residential colleges are a distinct, communal approach to higher education. li.home-statements__list-item > a.home-statements__link > figure.home-statements__figure > img.home-statements__img
www.vanderbilt.edu/wp-content/uploads/sites/3/2021/04/bronson-ingram-facade.jpg
Benefit from financial aid that replaces student loans with grants and scholars… li.home-statements__list-item > a.home-statements__link > figure.home-statements__figure > img.home-statements__img
www.vanderbilt.edu/wp-content/uploads/sites/3/2021/06/person-book-library-1.jpg
Collaborative ethos and competitive drive make Vanderbilt a top 25 private univ… li.home-statements__list-item > a.home-statements__link > figure.home-statements__figure > img.home-statements__img
www.vanderbilt.edu/wp-content/uploads/sites/3/2021/06/graduation-line.jpg
98% of our on-campus residents actively engage in various campus activities, hi… li.home-statements__list-item > a.home-statements__link > figure.home-statements__figure > img.home-statements__img
/wp-content/uploads/sites/3/2021/06/student-biking-with-g...
You’ll thrive with our 7:1 student-to-highly-dedicated-faculty ratio. li.home-statements__list-item > a.home-statements__link > figure.home-statements__figure > img.home-statements__img
www.vanderbilt.edu/wp-content/uploads/sites/3/2021/06/professor-in-classroom.jpg

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

●Max Potential First Input Delay 90 ms
●Layout shift culprits
●Optimize DOM size
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 7 user timings
●JavaScript execution time 0.5 s
●Minimizes main-thread work 1.5 s
●Avoid long main-thread tasks 7 long tasks found
●Avoid non-composited animations 3 animated elements found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 240 ms
●Server Backend Latencies 360 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 10 ms
●Avoid large layout shifts 4 layout shifts found
○INP breakdown
97

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Anchored in Excellence div.topper-background__text-inner--right > div.standard-home__news > div.standard-home__news-col > h4.standard-home__news-title

These are opportunities to improve keyboard navigation in your application.

Best practices

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.js html.js

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
●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
●`[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.
●`[accesskey]` values are unique
●ARIA attributes are used as specified for the element's role
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Deprecated ARIA roles were not used
●`<video>` elements contain a `<track>` element with `[kind="captions"]`
●Identical links have the same purpose.
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○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
○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.
○`[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.
○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.
73

Best Practices

Browser Compatibility

A character encoding declaration is required. It can be done with a `<meta>` tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header. Learn more about declaring the character encoding.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

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
Access to font at 'https://cdn.vanderbilt.edu/vu-futurevu/static/fonts/Academica/complete/AcademicaMedium.woff' from origin 'https://www.vanderbilt.edu' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Access to font at 'https://cdn.vanderbilt.edu/vu-futurevu/static/fonts/Academica/complete/AcademicaMedium.woff2' from origin 'https://www.vanderbilt.edu' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Failed to load resource: net::ERR_FAILED
Failed to load resource: net::ERR_FAILED
●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
●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
83

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.

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
Previous div.story-list__carousel--wrapper > div.story-list__carousel--scroll-buttons > div.button-component > a.button
Next div.story-list__carousel--wrapper > div.story-list__carousel--scroll-buttons > div.button-component > a.button

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`
●Document has a valid `rel=canonical`
○robots.txt is valid

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