https://uni-stuttgart.de
Lighthouse Mobile
· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.SCORE
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Detailed Report
Audit breakdown by category with detailed findings.
31
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.
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:0.7637419999999999] map[node:map[boundingRect:map[bottom:1211 height:710 left:0 right:412 top:501 width:412] lhId:page-21-DIV nodeLabel:Studieninteressierte
Studierende
Wissenschaftlicher Nachwuchs
Gründer*innen
Bes… path:6,HTML,2,BODY,6,DIV,0,DIV,0,MAIN,0,DIV,4,DIV,0,DIV,0,DIV,0,DIV,0,DIV selector:div > div.segment > div.container > div.col-md-12 snippet:<div class="col-md-12 oc-container-column"> type:node] score:0.413025 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:372 height:232 left:-412 right:0 top:140 width:412] lhId:page-30-IMG nodeLabel:Unsere Spitzenforschung: Aerospace Technologies path:6,HTML,2,BODY,6,DIV,0,DIV,0,MAIN,0,DIV,3,DIV,0,DIV,1,DIV,0,DIV,1,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,FIGURE,0,A,0,DIV,0,PICTURE,1,IMG selector:a > div.figure__wrapper > picture.c-picture > img snippet:<img src="https://www.uni-stuttgart.de/forschung/img/profilbild-aerospace-technologi…" style="" alt="Unsere Spitzenforschung: Aerospace Technologies"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:501 height:130 left:412 right:824 top:371 width:412] lhId:page-19-DIV nodeLabel:Workshops und Beratung zur Studienwahl
[Bild: © Universität Stuttgart / Ludmill… path:6,HTML,2,BODY,6,DIV,0,DIV,0,MAIN,0,DIV,3,DIV,0,DIV,1,DIV,0,DIV,1,DIV,0,DIV,2,DIV,1,DIV,0,DIV,1,DIV selector:div.slider__item > div.c-intro-teaser--news-slider > div.intro-teaser__wrapper > div.intro-teaser__news-wrapper snippet:<div class="intro-teaser__news-wrapper"> type:node] score:0.110493 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:372 height:232 left:412 right:824 top:140 width:412] lhId:page-5-IMG nodeLabel:Workshops und Beratung zur Studienwahl path:6,HTML,2,BODY,6,DIV,0,DIV,0,MAIN,0,DIV,3,DIV,0,DIV,1,DIV,0,DIV,1,DIV,0,DIV,2,DIV,1,DIV,0,DIV,0,FIGURE,0,A,0,DIV,0,PICTURE,1,IMG selector:a > div.figure__wrapper > picture.c-picture > img snippet:<img src="https://www.uni-stuttgart.de/universitaet/aktuelles/img-slider/260316_Slid…" style="" alt="Workshops und Beratung zur Studienwahl"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:501 height:361 left:-412 right:0 top:140 width:412] lhId:page-25-DIV nodeLabel:Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] path:6,HTML,2,BODY,6,DIV,0,DIV,0,MAIN,0,DIV,3,DIV,0,DIV,1,DIV,0,DIV,1,DIV,0,DIV,0,DIV selector:div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item snippet:<div class="slider__item is-cloned" data-js-atom="slider-item" style="width: 412px;"> type:node] score:0.054364 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:6810 height:382 left:15 right:397 top:6428 width:382] lhId:page-1-IMG nodeLabel:IntCDC Spring Conference 2026 path:6,HTML,2,BODY,6,DIV,0,DIV,0,MAIN,0,DIV,4,DIV,3,DIV,0,DIV,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,1,DIV,0,A,2,DIV,0,DIV,0,DIV,0,FIGURE,0,DIV,0,PICTURE,1,IMG selector:figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img snippet:<img src="https://www.intcdc.uni-stuttgart.de/img/news/news-2026/03/2.png?__scale=w:…" style="" alt="IntCDC Spring Conference 2026"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:501 height:361 left:-412 right:0 top:140 width:412] lhId:page-25-DIV nodeLabel:Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] path:6,HTML,2,BODY,6,DIV,0,DIV,0,MAIN,0,DIV,3,DIV,0,DIV,1,DIV,0,DIV,1,DIV,0,DIV,0,DIV selector:div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item snippet:<div class="slider__item is-cloned" data-js-atom="slider-item" style="width: 412px;"> type:node] score:0.024517 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:6275 height:382 left:15 right:397 top:5893 width:382] lhId:page-6-IMG nodeLabel:figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img path:6,HTML,2,BODY,6,DIV,0,DIV,0,MAIN,0,DIV,4,DIV,3,DIV,0,DIV,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,A,2,DIV,0,DIV,0,DIV,0,FIGURE,0,DIV,0,PICTURE,1,IMG selector:figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img snippet:<img src="https://www.uni-stuttgart.de/universitaet/aktuelles/img/AdobeStock_2417327…" style="" alt=""> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:501 height:361 left:-412 right:0 top:140 width:412] lhId:page-25-DIV nodeLabel:Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] path:6,HTML,2,BODY,6,DIV,0,DIV,0,MAIN,0,DIV,3,DIV,0,DIV,1,DIV,0,DIV,1,DIV,0,DIV,0,DIV selector:div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item snippet:<div class="slider__item is-cloned" data-js-atom="slider-item" style="width: 412px;"> type:node] score:0.023984 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:6275 height:382 left:15 right:397 top:5893 width:382] lhId:page-6-IMG nodeLabel:figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img path:6,HTML,2,BODY,6,DIV,0,DIV,0,MAIN,0,DIV,4,DIV,3,DIV,0,DIV,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,A,2,DIV,0,DIV,0,DIV,0,FIGURE,0,DIV,0,PICTURE,1,IMG selector:figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img snippet:<img src="https://www.uni-stuttgart.de/universitaet/aktuelles/img/AdobeStock_2417327…" style="" alt=""> type:node]]] 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.
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.
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 | |
|---|---|---|---|
Zukunftsweisende Forschung auf der Hannover Messe a > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-news/260420_THE_LAEND_HM26-12... | 1.3 MiB | 1.2 MiB |
IntCDC Spring Conference 2026 figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img | /img/news/news-2026/03/2.png?__scale=w:555,h:555,cx:148,c... | 903.5 KiB | 853.4 KiB |
Strom ohne Kabel und Stecker a > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-slider/nejila-parspour-jan-po... | 702.9 KiB | 655.3 KiB |
Unsere Spitzenforschung: Aerospace Technologies a > div.figure__wrapper > picture.c-picture > img | /forschung/img/profilbild-aerospace-technologies.jpg?__sc... | 630.4 KiB | 582.8 KiB |
figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-news/pm-09-flashphos-logo-var... | 568.0 KiB | 543.8 KiB |
Workshops und Beratung zur Studienwahl a > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-slider/260316_Slider_Beratung... | 448.5 KiB | 400.9 KiB |
figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img/AdobeStock_241732787.jpeg?__s... | 313.1 KiB | 240.3 KiB |
figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img | /dokumente/Gestwa-Klaus-006-Feb-2024.jpg?__scale=w:1110,h... | 258.7 KiB | 186.0 KiB |
figure.c-figure--story-teaser > div.figure__wrapper > picture.c-picture > img figure.c-figure--story-teaser > div.figure__wrapper > picture.c-picture > img | /universitaet/img/02_Hoersaal-Vorlesung.jpg?__scale=w:740... | 203.5 KiB | 155.6 KiB |
Girls´Day a > div.figure__wrapper > picture.c-picture > img | /studium/orientierung/img/girlsday.jpg?__scale=w:1170,h:6... | 182.1 KiB | 134.5 KiB |
figure.c-figure--story-teaser > div.figure__wrapper > picture.c-picture > img figure.c-figure--story-teaser > div.figure__wrapper > picture.c-picture > img | /universitaet/img/04_Luftaufnahme-Campus-Vaihingen.jpg?__... | 147.9 KiB | 100.0 KiB |
figure.c-figure--story-teaser > div.figure__wrapper > picture.c-picture > img figure.c-figure--story-teaser > div.figure__wrapper > picture.c-picture > img | /universitaet/arbeitgeberin/img/FL2A9029_websize.jpg?__sc... | 143.5 KiB | 95.6 KiB |
Ein weißes Elektroflugzeug mit der Aufschrift 'e-Genius hybrid' fliegt vor eine… figure.c-figure--story-teaser > div.figure__wrapper > picture.c-picture > img | /forschung/img/profilbild-aerospace-technologies.jpg?__sc... | 142.2 KiB | 94.3 KiB |
figure.c-figure--story-teaser > div.figure__wrapper > picture.c-picture > img figure.c-figure--story-teaser > div.figure__wrapper > picture.c-picture > img | /.uni/hkom/forschung/img/imwf1.jpg?__scale=w:740,h:740,cx... | 115.1 KiB | 67.2 KiB |
Zwei Forschende stehen vor einem Laboraufbau. figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-news/news-04-26-MWK-Gratuiert... | 85.2 KiB | 61.1 KiB |
figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-news/Wettbewerb-auf-IT-gebaut... | 75.0 KiB | 50.8 KiB |
figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-news/news-04-26-quantenrepeat... | 57.0 KiB | 32.8 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-17-IMG
nodeLabel: Zukunftsweisende Forschung auf der Hannover Messe
path: 6,HTML,2,BODY,6,DIV,0,DIV,0,MAIN,0,DIV,3,DIV,0,DIV,1,DIV,0,DIV,1,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,FIGURE,0,A,0,DIV,0,PICTURE,1,IMG
selector: a > div.figure__wrapper > picture.c-picture > img
snippet: <img src="https://www.uni-stuttgart.de/universitaet/aktuelles/img-news/260420_THE_LA…" style="" alt="Zukunftsweisende Forschung auf der Hannover Messe">
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
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.
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: 751 ms
| URL | Time Spent |
|---|---|
| uni-stuttgart.de/ | 751 ms |
| www.uni-stuttgart.de/ | 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 |
|---|---|
Studieninteressierte
Studierende
Wissenschaftlicher Nachwuchs
Gründer*innen
Bes… div > div.segment > div.container > div.col-md-12 | 0.413 |
Workshops und Beratung zur Studienwahl
[Bild: © Universität Stuttgart / Ludmill… div.slider__item > div.c-intro-teaser--news-slider > div.intro-teaser__wrapper > div.intro-teaser__news-wrapper | 0.110 |
Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item | 0.054 |
Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item | 0.025 |
Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item | 0.024 |
Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item | 0.023 |
Girls´Day
[Bild: © luchschen, Fotolia] div.slider__item > div.c-intro-teaser--news-slider > div.intro-teaser__wrapper > div.intro-teaser__news-wrapper | 0.022 |
Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item | 0.020 |
Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item | 0.017 |
Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item | 0.013 |
Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item | 0.011 |
Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item | 0.009 |
Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item | 0.007 |
Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item | 0.005 |
Unsere Spitzenforschung: Aerospace Technologies
[Bild: © NASA, Unsplash] div.c-slider--default > div.slider__list-wrapper > div.slider__list > div.slider__item | 0.004 |
Diagnostics
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: 760 ms 127.6 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| /system/modules/de.stuttgart.uni.v3.basics/resources/css/... | 324.4 KiB | 78.0 KiB |
| /system/modules/de.stuttgart.uni.v3.basics/resources/css/... | 172.4 KiB | 45.4 KiB |
| /system/modules/de.stuttgart.uni.v3.basics/resources/css/... | 5.2 KiB | 2.1 KiB |
| /system/modules/de.stuttgart.uni.v3.basics/resources/css/... | 11.2 KiB | 2.0 KiB |
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: 2.5 s 465.7 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| /system/modules/de.stuttgart.uni.v3.basics/resources/css/... | 324.1 KiB | 266.6 KiB |
| /system/modules/de.stuttgart.uni.v3.basics/resources/css/... | 172.1 KiB | 157.4 KiB |
| /system/modules/de.stuttgart.uni.v3.basics/resources/css/... | 29.3 KiB | 29.2 KiB |
| /system/modules/de.stuttgart.uni.v3.basics/resources/css/... | 12.5 KiB | 12.5 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: 4.6 s 930.4 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| /system/modules/de.stuttgart.uni.v3.zsb/resources/videoin... | 571.5 KiB | 459.9 KiB |
| /system/modules/de.stuttgart.uni.v3.basics/resources/js/j... | 234.8 KiB | 209.6 KiB |
| /system/modules/de.stuttgart.uni.v3.basics/resources/js/a... | 130.1 KiB | 96.8 KiB |
| /system/modules/de.stuttgart.uni.v3.basics/resources/js/b... | 120.9 KiB | 66.8 KiB |
| /system/modules/de.stuttgart.uni.v3.basics/resources/js/f... | 66.7 KiB | 52.7 KiB |
| www.uni-stuttgart.de/piwik/piwik.js | 67.3 KiB | 44.5 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 26.4 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| /system/modules/de.stuttgart.uni.v3.basics/resources/js/l... | 38.9 KiB | 16.5 KiB |
| /system/modules/de.stuttgart.uni.v3.basics/resources/js/t... | 19.1 KiB | 7.8 KiB |
| /system/modules/de.stuttgart.uni.filters/resources/js/fil... | 6.0 KiB | 2.1 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.
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 | |
|---|---|
figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img/AdobeStock_241732787.jpeg?__s... |
IntCDC Spring Conference 2026 figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img | /img/news/news-2026/03/2.png?__scale=w:555,h:555,cx:148,c... |
figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img figure.c-figure--stream-event > div.figure__wrapper > picture.c-picture > img | /dokumente/Gestwa-Klaus-006-Feb-2024.jpg?__scale=w:1110,h... |
figure.c-figure--story-teaser > div.figure__wrapper > picture.c-picture > img figure.c-figure--story-teaser > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-news/News-10-24-Nature-DNA-Pr... |
figure.c-figure--story-teaser > div.figure__wrapper > picture.c-picture > img figure.c-figure--story-teaser > div.figure__wrapper > picture.c-picture > img | /universitaet/fueralle/img/mikro.png?__scale=w:640,h:640,... |
Unsere Spitzenforschung: Aerospace Technologies a > div.figure__wrapper > picture.c-picture > img | /forschung/img/profilbild-aerospace-technologies.jpg?__sc... |
Zukunftsweisende Forschung auf der Hannover Messe a > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-news/260420_THE_LAEND_HM26-12... |
Workshops und Beratung zur Studienwahl a > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-slider/260316_Slider_Beratung... |
Strom ohne Kabel und Stecker a > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-slider/nejila-parspour-jan-po... |
Girls´Day a > div.figure__wrapper > picture.c-picture > img | /studium/orientierung/img/girlsday.jpg?__scale=w:1170,h:6... |
Unsere Spitzenforschung: Aerospace Technologies a > div.figure__wrapper > picture.c-picture > img | /forschung/img/profilbild-aerospace-technologies.jpg?__sc... |
Zukunftsweisende Forschung auf der Hannover Messe a > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-news/260420_THE_LAEND_HM26-12... |
Zwei Forschende stehen vor einem Laboraufbau. figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-news/news-04-26-MWK-Gratuiert... |
figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-news/news-04-26-quantenrepeat... |
figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-news/Wettbewerb-auf-IT-gebaut... |
figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img figure.c-figure--stream-portrait > div.figure__wrapper > picture.c-picture > img | /universitaet/aktuelles/img-news/pm-09-flashphos-logo-var... |
Logo: Universität Stuttgart - zur Startseite div.row > div.col-md-3 > a > img.logo-rectangle-inverted-footer | /system/modules/de.stuttgart.uni.v3.basics/resources/img/... |
More information about the performance of your application. These numbers don't directly affect the Performance score.
●Max Potential First Input Delay 100 ms
●Optimize DOM size
●Forced reflow
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●JavaScript execution time 0.4 s
●Minimizes main-thread work 1.6 s
●Avoid long main-thread tasks 4 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 30 ms
●Server Backend Latencies 160 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 60 ms
○INP breakdown
○User Timing marks and measures
92
Accessibility
These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.
Contrast
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Why this matters
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
[Fotos: Universität Stuttgart / Uli Regenscheit, o. A., o. A., o. A.] div.row > div.st_extended > p > small |
o. A. div.st_extended > p > small > abbr |
o. A. div.st_extended > p > small > abbr |
o. A. div.st_extended > p > small > abbr |
[Fotos: NASA, Unsplash, ICD/ITKE/IntCDC, Universität Stuttgart / Roland Halbe, … div.row > div.st_extended > p > small |
[Fotos: Arizona State University, Biodesign Institute / Jason Drees , Canva] div.col-md-12 > div.b-teaser > p > small |
These are opportunities to improve the legibility of your content.
Best practices
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
Why this matters
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Slider pausieren / wieder anstoßen div.isnt-overflow > div.c-slider--default > div.slider__pagination > button.slider__playpause |
These items highlight common accessibility best practices.
○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links 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
●Heading elements appear in a sequentially-descending order
●Skip links are focusable.
●Document has a main landmark.
●Deprecated ARIA roles were not used
○`[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.
○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.
○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.
100
Best Practices
●Uses HTTPS
●Avoids deprecated APIs
●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`