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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

27

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
indianapolis.iu.edu/images/homepage/home-hero_2400x1200_alt-374k.webp0.0 ms365.6 KiB
indianapolis.iu.edu/images/homepage/skyline-background-with-trident-216k.webp0.0 ms216.5 KiB
indianapolis.iu.edu/images/homepage/skyline-background-light-220k.webp0.0 ms215.7 KiB
indianapolis.iu.edu/images/homepage/skyline-indianapolis-light-215k.webp0.0 ms214.5 KiB
indianapolis.iu.edu/images/homepage/iu-indianapolis-regatta-rowing.webp0.0 ms127.8 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
indianapolis.iu.edu/images/homepage/iu-indianapolis-medical-student.webp0.0 ms70.4 KiB
indianapolis.iu.edu/images/homepage/iu-indianapolis-students-laughing.webp0.0 ms70.1 KiB
indianapolis.iu.edu/images/homepage/iu-indianapolis-student-vr.webp0.0 ms68.8 KiB
indianapolis.iu.edu/images/homepage/iu-trident-downtown-indianapolis.webp0.0 ms63.7 KiB
fonts.iu.edu/fonts/benton-sans-bold.woff0.0 ms41.6 KiB
/images/homepage/iu-indianapolis-students-studying-smilin...0.0 ms41.4 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
indianapolis.iu.edu/images/homepage/student-smiling-iu-indianapolis-library.webp0.0 ms40.2 KiB
/signals/config/521554415416662?v=2.9.303&r=stable&domain...1200.0 s44.8 KiB
fonts.iu.edu/fonts/benton-sans-cond-black.woff0.0 ms39.0 KiB
siteimproveanalytics.com/js/siteanalyze_11378.js86400.0 s92.9 KiB
fonts.iu.edu/fonts/georgia-pro-regular.woff0.0 ms35.0 KiB
fonts.iu.edu/fonts/georgia-pro-bold.woff0.0 ms34.6 KiB
indianapolis.iu.edu/images/homepage/iu-indianapolis-students-outside.webp0.0 ms31.2 KiB
/live/resource/js/\livewhale\thirdparty\jquery\jquery.no-...10800.0 s35.8 KiB
indianapolis.iu.edu/css/site.css?26130404060.0 ms13.0 KiB
js.adsrvr.org/up_loader.1.1.0.js0.0 ms12.3 KiB
indianapolis.iu.edu/images/homepage/skyline-iu-trident-8k.webp0.0 ms8.0 KiB
collector-45540.tvsquared.com/tv2track.js600.0 s8.7 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
s.yimg.com/wi/ytc.js0.0 ms7.1 KiB
indianapolis.iu.edu/js/home-20240815-2.js0.0 ms5.4 KiB
indianapolis.iu.edu/js/site.js?26020324230.0 ms2.4 KiB
js.adsrvr.org/universal_pixel.js0.0 ms958 B
/live/resource/css/\livewhale\theme\global\styles\widgets...10800.0 s1.3 KiB
process.indiana.edu/ping1786.0 s969 B
/collect?v=2&fmt=js&pid=7515041&time=1776900159349&url=ht...0.0 ms692 B
exdd-resources.webapps.iu.edu/js/rave/rave.js0.0 ms653 B
/config/edu/34ad7e6d-5b07-44a5-9916-024f47e2c48f.js?v=3.5...0.0 ms475 B
/tv2track.php?action_name=IU%20Indianapolis%20-%20Your%20...0.0 ms276 B
news.iu.edu/livewhale/theme/core/scripts/lwcw.js604800.0 s2.7 KiB
/config/edu/1e5d1155-4d00-4c7b-8d75-61aa162aa8a6.js?v=3.5...0.0 ms213 B
/config/edu/00b282dd-5eb1-4507-bd1e-81a362988c47.js?v=3.5...0.0 ms213 B
/tr/?id=521554415416662&ev=PageView&dl=https%3A%2F%2Findi...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:0.176339] map[node:map[boundingRect:map[bottom:737 height:171 left:24 right:388 top:566 width:364] lhId:page-13-DIV nodeLabel:You're admitted! What's next? Tell us you're IU Indianapolis bound by reserving… path:1,HTML,1,BODY,5,MAIN,4,DIV,0,DIV,0,DIV,0,DIV selector:div#home-hero-card > div.rvt-container-md > div.rvt-c-card > div.rvt-card snippet:<div class="rvt-card rvt-card--horizontal rvt-card--raised rvt-flex rvt-items-center r…"> type:node] score:0.146898 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:689 height:309 left:-103 right:515 top:380 width:618] lhId:page-0-IMG nodeLabel:A group of students walk confidently through the IU Indianapolis Campus Center … path:1,HTML,1,BODY,5,MAIN,3,DIV,0,DIV,3,DIV,0,DIV,0,IMG selector:div.rvt-m-top-xxl > div > div.simpleParallax > img.rvt-c-full-width snippet:<img class="rvt-c-full-width rvt-c-hero-home__parallax-image" alt="A group of students walk confidently through the IU Indianapolis Campus Ce…" src="https://indianapolis.iu.edu/images/homepage/home-hero_2400x1200_alt-374k.w…" style="transform: translate3d(0px, 11px, 0px) scale(1.5); will-change: transform;"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:1452 height:523 left:24 right:388 top:929 width:364] lhId:page-11-DIV nodeLabel:IU Indianapolis is the hub for a new era of innovation—right in the heart of Am… path:1,HTML,1,BODY,5,MAIN,5,DIV,0,DIV,0,DIV,2,DIV selector:div.rvt-c-statement-home > div.rvt-c-statement-home__gradient > div.rvt-container-sm > div.rvt-color-crimson snippet:<div class="rvt-color-crimson rvt-m-top-md rvt-ts-23 rvt-ts-29-md-up rvt-c-vertical-se…"> type:node] score:0.027349 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:3243 height:182 left:24 right:388 top:3061 width:364] lhId:page-3-IMG nodeLabel:A female student in a lab coat with “IU School of Medicine” logo, wearing blue … path:1,HTML,1,BODY,5,MAIN,8,DIV,0,DIV,0,IMG selector:main#main-content > div.rvt-c-container-xxl > div.rvt-c-animate--image-fade-in-start > img snippet:<img alt="A female student in a lab coat with “IU School of Medicine” logo, wearing …" src="images/homepage/iu-indianapolis-medical-student.webp"> type:node]] map[cause:Web font extra:map[type:url value:https://fonts.iu.edu/fonts/benton-sans-cond-black.woff]] map[cause:Web font extra:map[type:url value:https://fonts.iu.edu/fonts/georgia-pro-regular.woff]]] type:subitems]] map[node:map[boundingRect:map[bottom:713 height:83 left:48 right:364 top:630 width:316] lhId:page-9-H2 nodeLabel:Tell us you're IU Indianapolis bound by reserving your spot for Fall 2026, sche… path:1,HTML,1,BODY,5,MAIN,4,DIV,0,DIV,0,DIV,0,DIV,1,DIV,1,H2 selector:div.rvt-c-card > div.rvt-card > div.rvt-card__body > h2.rvt-card__title snippet:<h2 class="rvt-card__title rvt-m-top-xxs rvt-p-right-lg rvt-text-medium rvt-ts-16 rvt…"> type:node] score:0.002092 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:3243 height:182 left:24 right:388 top:3061 width:364] lhId:page-3-IMG nodeLabel:A female student in a lab coat with “IU School of Medicine” logo, wearing blue … path:1,HTML,1,BODY,5,MAIN,8,DIV,0,DIV,0,IMG selector:main#main-content > div.rvt-c-container-xxl > div.rvt-c-animate--image-fade-in-start > img snippet:<img alt="A female student in a lab coat with “IU School of Medicine” logo, wearing …" src="images/homepage/iu-indianapolis-medical-student.webp"> type:node]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/azeretmono/v21/3XFuErsiyJsY9O_Gepph-HHhZfn23vRK.woff2]]] type:subitems]]]

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:132.911 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
A group of students walk confidently through the IU Indianapolis Campus Center … div.rvt-m-top-xxl > div > div.simpleParallax > img.rvt-c-full-width
indianapolis.iu.edu/images/homepage/home-hero_2400x1200_alt-374k.webp365.3 KiB332.4 KiB
A vibrant cityscape at dusk featuring the Soldiers and Sailors Monument in Indi… main#main-content > div.rvt-c-statement-home > div.rvt-c-layered-parallax__skyline-background > img.rvt-c-full-width
indianapolis.iu.edu/images/homepage/skyline-background-with-trident-216k.webp216.3 KiB172.4 KiB
A male student wearing a VR headset and an “Indianapolis IU” sweatshirt interac… div.rvt-c-container-xxl > div.rvt-flex > div.rvt-m-left-sm > img
indianapolis.iu.edu/images/homepage/iu-indianapolis-student-vr.webp68.6 KiB62.4 KiB
A female student in a lab coat with “IU School of Medicine” logo, wearing blue … main#main-content > div.rvt-c-container-xxl > div.rvt-c-animate--image-fade-in-start > img
indianapolis.iu.edu/images/homepage/iu-indianapolis-medical-student.webp70.1 KiB59.0 KiB
Two students paddling a canoe during the Regatta, wearing life vests, with the … div.rvt-border-bottom > div.rvt-billboard > div.rvt-billboard__image > img
indianapolis.iu.edu/images/homepage/iu-indianapolis-regatta-rowing.webp127.6 KiB32.6 KiB
Two students, one wearing a red IU shirt, walk together in a courtyard outside … div.rvt-c-container-xxl > div.rvt-flex > div.rvt-m-left-sm > img
indianapolis.iu.edu/images/homepage/iu-indianapolis-students-outside.webp30.9 KiB27.1 KiB
A view of the IU Campus Center tower featuring a prominent red Indiana Universi… div.rvt-cols-6-md > div.rvt-m-top-xxl > figure#image > img
indianapolis.iu.edu/images/homepage/iu-trident-downtown-indianapolis.webp63.4 KiB19.4 KiB
link hub image div.rvt-p-tb-xxl > div.rvt-flex-md-up > div.rvt-c-full-width > img
indianapolis.iu.edu/images/homepage/student-smiling-iu-indianapolis-library.webp39.9 KiB14.6 KiB
The Indiana University (IU) logo is prominently overlaid in the center of the i… main#main-content > div.rvt-c-statement-home > div.simpleParallax > img.rvt-c-layered-parallax__trident
indianapolis.iu.edu/images/homepage/skyline-iu-trident-8k.webp7.7 KiB6.1 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-0-IMG
nodeLabel: A group of students walk confidently through the IU Indianapolis Campus Center …
path: 1,HTML,1,BODY,5,MAIN,3,DIV,0,DIV,3,DIV,0,DIV,0,IMG
selector: div.rvt-m-top-xxl > div > div.simpleParallax > img.rvt-c-full-width
snippet: <img class="rvt-c-full-width rvt-c-hero-home__parallax-image" alt="A group of students walk confidently through the IU Indianapolis Campus Ce…" src="https://indianapolis.iu.edu/images/homepage/home-hero_2400x1200_alt-374k.w…" style="transform: translate3d(0px, 11px, 0px) scale(1.5); will-change: transform;">

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
indianapolis.iu.edu/http/1.1
indianapolis.iu.edu/css/site.css?2613040406http/1.1
indianapolis.iu.edu/images/homepage/skyline-background-with-trident-216k.webphttp/1.1
indianapolis.iu.edu/images/homepage/iu-indianapolis-medical-student.webphttp/1.1
indianapolis.iu.edu/images/homepage/iu-trident-downtown-indianapolis.webphttp/1.1
indianapolis.iu.edu/js/site.js?2602032423http/1.1
indianapolis.iu.edu/js/home-20240815-2.jshttp/1.1
/images/homepage/iu-indianapolis-students-studying-smilin...http/1.1
indianapolis.iu.edu/images/homepage/iu-indianapolis-students-outside.webphttp/1.1
indianapolis.iu.edu/images/homepage/iu-indianapolis-student-vr.webphttp/1.1
indianapolis.iu.edu/images/homepage/student-smiling-iu-indianapolis-library.webphttp/1.1
indianapolis.iu.edu/images/homepage/iu-indianapolis-students-laughing.webphttp/1.1
indianapolis.iu.edu/images/homepage/iu-indianapolis-regatta-rowing.webphttp/1.1
indianapolis.iu.edu/images/homepage/home-hero_2400x1200_alt-374k.webphttp/1.1
indianapolis.iu.edu/images/homepage/skyline-iu-trident-8k.webphttp/1.1
indianapolis.iu.edu/images/homepage/skyline-indianapolis-light-215k.webphttp/1.1
indianapolis.iu.edu/images/homepage/skyline-background-light-220k.webphttp/1.1
indianapolis.iu.edu/favicon.icohttp/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
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.

URLTransfer SizeDuration
indianapolis.iu.edu/css/site.css?261304040613.0 KiB512 ms
unpkg.com/rivet-core@2.6.0/css/rivet.min.css24.5 KiB1.3 s
unpkg.com/rivet-stickers@0.3.0/dist/rivet-sticker-element.css1018 B791 ms
unpkg.com/rivet-icons@2.0.0/dist/rivet-icons.css617 B791 ms
unpkg.com/rivet-core@2.6.0/tokens/css/variables.css1.8 KiB791 ms
/css2?family=Azeret+Mono:ital,wght@0,100..900;1,100..900&...915 B759 ms

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: 1.1 s
URLTime Spent
iupui.edu/1.1 s
indianapolis.iu.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.

ElementLayout shift score
You're admitted! What's next? Tell us you're IU Indianapolis bound by reserving… div#home-hero-card > div.rvt-container-md > div.rvt-c-card > div.rvt-card
0.147
IU Indianapolis is the hub for a new era of innovation—right in the heart of Am… div.rvt-c-statement-home > div.rvt-c-statement-home__gradient > div.rvt-container-sm > div.rvt-color-crimson
0.027
Tell us you're IU Indianapolis bound by reserving your spot for Fall 2026, sche… div.rvt-c-card > div.rvt-card > div.rvt-card__body > h2.rvt-card__title
0.002

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 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: 2.4 s 620.6 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtm.js?id=GTM-NFLPFVV&gtm=4e64k1157.7 KiB77.0 KiB
siteimproveanalytics.com/js/siteanalyze_11378.js92.2 KiB70.8 KiB
www.googletagmanager.com/gtag/destination?id=AW-11294882779&cx=c&gtm=4e64k1145.5 KiB69.0 KiB
www.googletagmanager.com/gtag/js?id=G-61CH0D2DQW&cx=c&gtm=4e64k1173.8 KiB65.3 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js120.8 KiB63.2 KiB
www.googletagmanager.com/gtag/destination?id=DC-10777741&cx=c&gtm=4e64k1129.5 KiB63.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-WJFT899123.0 KiB62.8 KiB
www.googletagmanager.com/gtag/destination?id=DC-10346257&cx=c&gtm=4e64k1129.2 KiB62.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-KPRMDMJJ&gtm=4e64k1170.4 KiB54.0 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB33.6 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.

URLTotal CPU TimeScript EvaluationScript Parse
indianapolis.iu.edu/1.1 s73 ms4.8 ms
indianapolis.iu.edu/js/home-20240815-2.js975 ms279 ms6.8 ms
Unattributable915 ms88 ms0.0 ms
www.googletagmanager.com/gtm.js?id=GTM-WJFT899691 ms601 ms64 ms
www.googletagmanager.com/gtag/js?id=G-61CH0D2DQW&cx=c&gtm=4e64k1647 ms497 ms103 ms
www.googletagmanager.com/gtag/destination?id=DC-10346257&cx=c&gtm=4e64k1475 ms401 ms71 ms
www.googletagmanager.com/gtm.js?id=GTM-NFLPFVV&gtm=4e64k1458 ms361 ms89 ms
www.googletagmanager.com/gtm.js?id=GTM-KPRMDMJJ&gtm=4e64k1452 ms336 ms102 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js408 ms317 ms84 ms
/signals/config/521554415416662?v=2.9.303&r=stable&domain...389 ms300 ms29 ms
connect.facebook.net/en_US/fbevents.js329 ms267 ms58 ms
www.googletagmanager.com/gtag/destination?id=AW-11294882779&cx=c&gtm=4e64k1318 ms249 ms67 ms
www.googletagmanager.com/gtag/destination?id=DC-10777741&cx=c&gtm=4e64k1288 ms228 ms56 ms
sc-static.net/scevent.min.js208 ms187 ms8.5 ms
siteimproveanalytics.com/js/siteanalyze_11378.js199 ms135 ms60 ms
unpkg.com/rivet-stickers@0.3.0/dist/rivet-sticker-element.js158 ms91 ms0.2 ms
/live/resource/js/\livewhale\thirdparty\jquery\jquery.no-...142 ms100 ms17 ms
analytics.tiktok.com/i18n/pixel/static/identify_5cff1caf.js80 ms48 ms31 ms
snap.licdn.com/li.lms-analytics/insight.min.js70 ms56 ms8.3 ms
js.adsrvr.org/up_loader.1.1.0.js58 ms44 ms6.3 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.

CategoryTime Spent
Script Evaluation4.9 s
Other1.5 s
Script Parsing & Compilation905 ms
Style & Layout860 ms
Parse HTML & CSS217 ms
Rendering172 ms
Garbage Collection150 ms

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 34.0 KiB
URLTransfer SizeEst Savings
unpkg.com/rivet-core@2.6.0/css/rivet.min.css24.1 KiB22.5 KiB
indianapolis.iu.edu/css/site.css?261304040612.7 KiB11.5 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
indianapolis.iu.edu/images/homepage/home-hero_2400x1200_alt-374k.webp365.6 KiB
indianapolis.iu.edu/images/homepage/skyline-background-with-trident-216k.webp216.5 KiB
indianapolis.iu.edu/images/homepage/skyline-background-light-220k.webp215.7 KiB
indianapolis.iu.edu/images/homepage/skyline-indianapolis-light-215k.webp214.5 KiB
www.googletagmanager.com/gtag/js?id=G-61CH0D2DQW&cx=c&gtm=4e64k1173.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-KPRMDMJJ&gtm=4e64k1170.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-NFLPFVV&gtm=4e64k1157.7 KiB
www.googletagmanager.com/gtag/destination?id=AW-11294882779&cx=c&gtm=4e64k1145.5 KiB
www.googletagmanager.com/gtag/destination?id=DC-10777741&cx=c&gtm=4e64k1129.5 KiB
www.googletagmanager.com/gtag/destination?id=DC-10346257&cx=c&gtm=4e64k1129.2 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
A group of students walk confidently through the IU Indianapolis Campus Center … div.rvt-m-top-xxl > div > div.simpleParallax > img.rvt-c-full-width
indianapolis.iu.edu/images/homepage/home-hero_2400x1200_alt-374k.webp
A vibrant cityscape at dusk featuring the Soldiers and Sailors Monument in Indi… main#main-content > div.rvt-c-statement-home > div.rvt-c-layered-parallax__skyline-background > img.rvt-c-full-width
indianapolis.iu.edu/images/homepage/skyline-background-with-trident-216k.webp
A female student in a lab coat with “IU School of Medicine” logo, wearing blue … main#main-content > div.rvt-c-container-xxl > div.rvt-c-animate--image-fade-in-start > img
indianapolis.iu.edu/images/homepage/iu-indianapolis-medical-student.webp
Two students walking outside on a brick pathway, smiling and engaged in convers… div.rvt-border-bottom > div.rvt-billboard > div.rvt-billboard__image > img
indianapolis.iu.edu/images/homepage/iu-indianapolis-students-laughing.webp
Two students paddling a canoe during the Regatta, wearing life vests, with the … div.rvt-border-bottom > div.rvt-billboard > div.rvt-billboard__image > img
indianapolis.iu.edu/images/homepage/iu-indianapolis-regatta-rowing.webp
link hub image div.rvt-p-tb-xxl > div.rvt-flex-md-up > div.rvt-c-full-width > img
indianapolis.iu.edu/images/homepage/student-smiling-iu-indianapolis-library.webp
A view of the IU Campus Center tower featuring a prominent red Indiana Universi… div.rvt-cols-6-md > div.rvt-m-top-xxl > figure#image > img
indianapolis.iu.edu/images/homepage/iu-trident-downtown-indianapolis.webp
Three students working together on laptops at a table in a bright room with lar… div.rvt-c-container-xxl > div.rvt-flex > div.rvt-c-animate--image-fade-in-start > img
/images/homepage/iu-indianapolis-students-studying-smilin...
Two students, one wearing a red IU shirt, walk together in a courtyard outside … div.rvt-c-container-xxl > div.rvt-flex > div.rvt-m-left-sm > img
indianapolis.iu.edu/images/homepage/iu-indianapolis-students-outside.webp
A male student wearing a VR headset and an “Indianapolis IU” sweatshirt interac… div.rvt-c-container-xxl > div.rvt-flex > div.rvt-m-left-sm > img
indianapolis.iu.edu/images/homepage/iu-indianapolis-student-vr.webp

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

●Optimize DOM size
●Font display
●LCP breakdown
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 6 user timings
●Avoid long main-thread tasks 20 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 160 ms
●Server Backend Latencies 170 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 120 ms
○INP breakdown
○Avoid non-composited animations
100

Accessibility

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

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<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
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●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
○Form elements have associated labels
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○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.
○Image elements do not have `[alt]` attributes that are redundant text.
○Identical links have the same purpose.
○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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