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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.

88

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
iu.edu/images/home/students-on-campus.jpg0.0 ms107.9 KiB
iu.edu/images/home/global-600x4001.jpeg0.0 ms86.2 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
iu.edu/images/home/brizz-charlie-600x400.jpeg0.0 ms64.9 KiB
iu.edu/_js/able-player/build/ableplayer.min.js0.0 ms60.5 KiB
fonts.iu.edu/fonts/benton-sans-bold.woff0.0 ms41.6 KiB
fonts.iu.edu/fonts/benton-sans-medium.woff0.0 ms41.3 KiB
fonts.iu.edu/fonts/benton-sans-regular.woff0.0 ms41.0 KiB
/signals/config/661123017718972?v=2.9.303&r=stable&domain...1200.0 s46.0 KiB
iu.edu/_css/site.css?202312080.0 ms38.1 KiB
iu.edu/images/homepage-header-image_brand2.0.webp0.0 ms38.0 KiB
iu.edu/images/home-research.jpg0.0 ms36.3 KiB
/live/resource/js/\livewhale\thirdparty\jquery\jquery.no-...10800.0 s35.8 KiB
js.adsrvr.org/up_loader.1.1.0.js0.0 ms12.3 KiB
iu.edu/_js/site.js?202310180.0 ms12.2 KiB
s.dpmsrv.com/dpm_599e9ef3575ae3622fe4bc5b1b01c3705a7e848c.min.js0.0 ms12.2 KiB
scripts.clarity.ms/0.8.59/clarity.js86400.0 s26.2 KiB
collector-45862.tvsquared.com/tv2track.js600.0 s8.7 KiB
iu.edu/_css/home.css?202508270.0 ms7.8 KiB
player.vimeo.com/api/player.js1800.0 s9.0 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
js.ipredictive.com/viant_universal_pixel.js0.0 ms3.5 KiB
js.adsrvr.org/universal_pixel.js0.0 ms935 B
/live/resource/css/\livewhale\theme\global\styles\widgets...10800.0 s1.3 KiB
process.indiana.edu/ping1793.0 s968 B
/collect?v=2&fmt=js&pid=677940&time=1776803933544&url=htt...0.0 ms695 B
/config/edu/e6d07076-4be1-4b7d-bc78-432a8623c95a.js?v=3.5...0.0 ms456 B
/tv2track.php?action_name=Bring%20On%20Tomorrow%3A%20Solv...0.0 ms276 B
news.iu.edu/livewhale/theme/core/scripts/lwcw.js604800.0 s2.7 KiB
insight.adsrvr.org/track/pxl/?adv=f6ba480&ct=0:0vvgx9s&fmt=30.0 ms149 B
insight.adsrvr.org/track/pxl/?adv=f6ba480&ct=0:bdw6qpv&fmt=30.0 ms148 B
insight.adsrvr.org/track/pxl/?adv=f6ba480&ct=0:ev51d05&fmt=30.0 ms148 B
insight.adsrvr.org/track/pxl/?adv=brvk6m8&ct=0:jhzy5ju&fmt=30.0 ms148 B
/tr/?id=661123017718972&ev=PageView&dl=https%3A%2F%2Fiu.e...0.0 ms19 B
/tr/?id=661123017718972&ev=PageView&dl=https%3A%2F%2Fiu.e...0.0 ms16 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:0.10358300000000001] map[node:map[boundingRect:map[bottom:1171 height:376 left:0 right:1350 top:795 width:1350] lhId:page-6-DIV nodeLabel:9 campuses 930+ academic programs 90,000+ students 170 countries represented #1… path:1,HTML,1,BODY,2,MAIN,1,DIV selector:body > main#main-content > div.rvt-m-top-xxl snippet:<div class="rvt-m-top-xxl"> type:node] score:0.101443 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:731 height:623 left:727 right:1350 top:108 width:623] lhId:page-0-IMG nodeLabel:Collaged image of doctor holding a patient's hands overlaid with a scientist wo… path:1,HTML,1,BODY,2,MAIN,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,IMG selector:div.rvt-c-campaigns-home-banner > div.rvt-c-campaigns-home-banner__image-container > div.rvt-c-campaigns-home-banner__image > img snippet:<img alt="Collaged image of doctor holding a patient's hands overlaid with a scienti…" src="images/homepage-header-image_brand2.0.webp"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:1171 height:32 left:129 right:1221 top:1139 width:1092] lhId:page-2-DIV nodeLabel:main#main-content > div.rvt-m-top-xxl > div.rvt-container-lg > div.rvt-flex path:1,HTML,1,BODY,2,MAIN,1,DIV,0,DIV,1,DIV selector:main#main-content > div.rvt-m-top-xxl > div.rvt-container-lg > div.rvt-flex snippet:<div class="rvt-flex rvt-justify-start rvt-m-tb-xs"> type:node] score:0.002136 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/azeretmono/v21/3XFuErsiyJsY9O_Gepph-HHhZfn23vRK.woff2]]] type:subitems]] map[node:map[boundingRect:map[bottom:610 height:16 left:336 right:352 top:594 width:16] lhId:page-1-::after nodeLabel:div.rvt-c-campaigns-home-banner__content > div.rvt-c-campaigns-home-banner__cta > a.rvt-cta > ::after path:1,HTML,1,BODY,2,MAIN,0,DIV,0,DIV,0,DIV,1,DIV,2,DIV,0,A,0,::after selector:div.rvt-c-campaigns-home-banner__content > div.rvt-c-campaigns-home-banner__cta > a.rvt-cta > ::after snippet:<::after> type:node] score:4e-06 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://fonts.iu.edu/fonts/benton-sans-medium.woff]]] type:subitems]]]

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-0-IMG
nodeLabel: Collaged image of doctor holding a patient's hands overlaid with a scientist wo…
path: 1,HTML,1,BODY,2,MAIN,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,IMG
selector: div.rvt-c-campaigns-home-banner > div.rvt-c-campaigns-home-banner__image-container > div.rvt-c-campaigns-home-banner__image > img
snippet: <img alt="Collaged image of doctor holding a patient's hands overlaid with a scienti…" src="images/homepage-header-image_brand2.0.webp">

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
iu.edu/http/1.1
iu.edu/_css/site.css?20231208http/1.1
iu.edu/_css/home.css?20250827http/1.1
iu.edu/images/homepage-header-image_brand2.0.webphttp/1.1
iu.edu/images/home/brizz-charlie-600x400.jpeghttp/1.1
iu.edu/images/home/students-on-campus.jpghttp/1.1
iu.edu/images/home-research.jpghttp/1.1
iu.edu/images/home/global-600x4001.jpeghttp/1.1
iu.edu/_js/site.js?20231018http/1.1
iu.edu/_js/able-player/build/ableplayer.min.jshttp/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
value: No additional origins are good candidates for preconnecting

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
iu.edu/_css/site.css?2023120838.1 KiB307 ms
iu.edu/_css/home.css?202508277.8 KiB453 ms
unpkg.com/rivet-core@2.5.2/css/rivet.min.css24.3 KiB340 ms
/css2?family=Azeret+Mono:ital,wght@0,100..900;1,100..900&...1.3 KiB267 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.

URLResource SizeEst Savings
President Whitten and Ivan Tornos sign a new agreement between Indiana Universi… div.rvt-c-teaser__image > figure.rvt-m-all-none > picture > img
/live/image/scale/2x/gid/2/width/768/height/768/crop/1/sr...150.3 KiB143.3 KiB
Luke Alka sits at a desk and works on a computer. div.rvt-c-teaser__image > figure.rvt-m-all-none > picture > img
/live/image/scale/2x/gid/2/width/768/height/768/crop/1/sr...104.6 KiB99.7 KiB
Three students sit under a tree, smiling and talking div.rvt-row > div.rvt-cols-6-md > div.rvt-c-promo-image > img
iu.edu/images/home/students-on-campus.jpg107.6 KiB78.1 KiB
Student holding a notebook in front of signage in multiple languages div.rvt-row > div.rvt-cols-6-md > div.rvt-c-promo-image > img
iu.edu/images/home/global-600x4001.jpeg85.9 KiB56.4 KiB
Student leaning on stair railing and smiling div.rvt-row > div.rvt-cols-6-md > div.rvt-c-promo-image > img
iu.edu/images/home/brizz-charlie-600x400.jpeg64.6 KiB35.1 KiB
div.rvt-c-teaser__image > figure.rvt-m-all-none > picture > img div.rvt-c-teaser__image > figure.rvt-m-all-none > picture > img
/live/image/scale/2x/gid/2/width/768/height/768/crop/1/sr...28.1 KiB22.8 KiB
Student drops research sample into tube div.rvt-row > div.rvt-cols-6-md > div.rvt-c-promo-image > img
iu.edu/images/home-research.jpg36.1 KiB19.4 KiB
Collaged image of doctor holding a patient's hands overlaid with a scientist wo… div.rvt-c-campaigns-home-banner > div.rvt-c-campaigns-home-banner__image-container > div.rvt-c-campaigns-home-banner__image > img
iu.edu/images/homepage-header-image_brand2.0.webp37.7 KiB9.5 KiB

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

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 51.8 KiB
URLTransfer SizeEst Savings
iu.edu/_css/site.css?2023120837.8 KiB29.9 KiB
unpkg.com/rivet-core@2.5.2/css/rivet.min.css23.9 KiB21.9 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 3.9 KiB
URLTransfer SizeEst Savings
iu.edu/_css/site.css?2023120838.1 KiB3.9 KiB

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 17.9 KiB
URLTransfer SizeEst Savings
unpkg.com/rivet-core@2.5.2/js/rivet-iife.js21.2 KiB14.1 KiB
iu.edu/_js/site.js?2023101811.9 KiB3.8 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 525.2 KiB
URLTransfer SizeEst Savings
connect.facebook.net/en_US/fbevents.js96.5 KiB90.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-NFLPFVV&gtm=4e64k0h2157.7 KiB77.1 KiB
www.googletagmanager.com/gtag/js?id=G-61CH0D2DQW&cx=c&gtm=4e64k0h2173.8 KiB64.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-5X98FWD&gtm=4e64k0h2169.7 KiB63.1 KiB
www.googletagmanager.com/gtm.js?id=GTM-WJFT899123.0 KiB62.7 KiB
www.googletagmanager.com/gtag/destination?id=DC-13775325&cx=c&gtm=4e64k0h2129.2 KiB61.8 KiB
iu.edu/_js/able-player/build/ableplayer.min.js59.8 KiB53.6 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB30.5 KiB
code.jquery.com/jquery-3.7.1.min.js29.6 KiB21.2 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
Collaged image of doctor holding a patient's hands overlaid with a scientist wo… div.rvt-c-campaigns-home-banner > div.rvt-c-campaigns-home-banner__image-container > div.rvt-c-campaigns-home-banner__image > img
iu.edu/images/homepage-header-image_brand2.0.webp
Student drops research sample into tube div.rvt-row > div.rvt-cols-6-md > div.rvt-c-promo-image > img
iu.edu/images/home-research.jpg
Student leaning on stair railing and smiling div.rvt-row > div.rvt-cols-6-md > div.rvt-c-promo-image > img
iu.edu/images/home/brizz-charlie-600x400.jpeg
Three students sit under a tree, smiling and talking div.rvt-row > div.rvt-cols-6-md > div.rvt-c-promo-image > img
iu.edu/images/home/students-on-campus.jpg
Student holding a notebook in front of signage in multiple languages div.rvt-row > div.rvt-cols-6-md > div.rvt-c-promo-image > img
iu.edu/images/home/global-600x4001.jpeg
Get it on Google Play div.rvt-card__button > div.rvt-c-app-stores__badges > a.rvt-c-app-stores__badge > img
Download on the App Store div.rvt-card__button > div.rvt-c-app-stores__badges > a.rvt-c-app-stores__badge > img

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

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
9 campuses 930+ academic programs 90,000+ students 170 countries represented #1… body > main#main-content > div.rvt-m-top-xxl
0.101
main#main-content > div.rvt-m-top-xxl > div.rvt-container-lg > div.rvt-flex main#main-content > div.rvt-m-top-xxl > div.rvt-container-lg > div.rvt-flex
0.002
div.rvt-c-campaigns-home-banner__content > div.rvt-c-campaigns-home-banner__cta > a.rvt-cta > ::after div.rvt-c-campaigns-home-banner__content > div.rvt-c-campaigns-home-banner__cta > a.rvt-cta > ::after
0.000
●Time to Interactive 1.5 s
●Document request latency
●Optimize DOM size
●Font display
●Forced reflow
●LCP breakdown
●Optimize viewport for mobile
●Max Potential First Input Delay 50 ms
●Avoids enormous network payloads Total size was 2,322 KiB
●User Timing marks and measures 8 user timings
●JavaScript execution time 0.3 s
●Minimizes main-thread work 0.8 s
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 120 ms
●Server Backend Latencies 310 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 120 ms
○INP breakdown
○Avoid long main-thread tasks
○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
●`<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
●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
●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
○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.
○No element has a `[tabindex]` value greater than 0
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<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.
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
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 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`

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