Lighthouse Mobile
· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.Detailed Report
Audit breakdown by category with detailed findings.
Performance
Insights
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
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
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| web.cmp.usercentrics.eu/ui/loader.js | 3600.0 s | 15.4 KiB |
| statistik.mpg.de/api.js | 604800.0 s | 66.4 KiB |
| app.usercentrics.eu/session/1px.png?settingsId=oO9e28BlWRtyf2 | 1800.0 s | 1.0 KiB |
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Est Savings |
|---|---|
| /assets/mpg_icons-webfont-fbcdd2a22910ced3dda265405bb43de... | 320 ms |
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.
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
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
Zwei Personen bei einer Demonstration, eine hält ein Schild mit der Aufschrift … div.img-box > a > picture > img.img-responsive | /26406691/original-1776705102.webp?t=ZXlKM2FXUjBhQ0k2TnpV... | 78.0 KiB | 62.1 KiB |
Ein Gehirnmodell mit farbigen, sich spiegelnden neuronalen Verbindungen, die di… div.img-box > a > picture > img.img-responsive | /18060310/teaser-1758883982.webp?t=ZXlKM2FXUjBhQ0k2TnpVd0... | 77.3 KiB | 61.5 KiB |
Vier Personen in einem Besprechungsraum, mit Laptops und Notizen vor einem Whit… div.container-full-width > a > picture.picture-hero > img.img-hero | /26373310/original-1776178586.webp?t=ZXlKM2FXUjBhQ0k2TVRV... | 62.3 KiB | 57.9 KiB |
Nächtliche Skyline einer Großstadt mit beleuchteten Hochhäusern und einer mehrs… div.img-box > a > picture > img.img-responsive | /11841708/teaser-1776083483.webp?t=ZXlKM2FXUjBhQ0k2TnpVd0... | 55.8 KiB | 41.3 KiB |
Eine Schale mit frischen Früchten und Gemüse, daneben eine Illustration des Ver… div.img-box > a > picture > img.img-responsive | /26411921/original-1776750707.webp?t=ZXlKM2FXUjBhQ0k2TnpV... | 50.8 KiB | 37.6 KiB |
Innenaufnahme eines großen, dunkelroten Roboterarms und eines daran hängenden d… div.img-box > a > picture > img.img-responsive | /12367091/original-1762349977.webp?t=ZXlKM2FXUjBhQ0k2TnpV... | 41.2 KiB | 30.5 KiB |
epiray-Gründer Hans Boschker (links) und Wolfgang Braun mit ihrem TLE-System div.img-box > a > picture > img.img-responsive | /26384619/teaser-1776692297.webp?t=ZXlKM2FXUjBhQ0k2TnpVd0... | 33.9 KiB | 25.1 KiB |
Eine Person im weißen Laborkittel gestikuliert sitzend, während im Hintergrund … div.img-box > a > picture > img.img-responsive | /26127580/original-1770894723.webp?t=ZXlKM2FXUjBhQ0k2TnpV... | 22.9 KiB | 17.0 KiB |
Grafik mit AI-Symbol in der Mitte, umgeben von digitalen Schaltkreisen. Rechts … div.img-box > a > picture > img.img-responsive | /26242970/original-1773389244.webp?t=ZXlKM2FXUjBhQ0k2TnpV... | 19.9 KiB | 14.8 KiB |
Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.
Performance issues directly impact user engagement and conversion rates.
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| mpg.de/ | 891 ms |
| www.mpg.de/ | 951 ms |
| www.mpg.de/de | 0.0 ms |
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /assets/responsive_live_green-7b920186ea92e729a1ed8639751... | 102.4 KiB | 95.9 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /assets/mpg_base-9108b3aa613f4551f661af067a1cc41438d882db... | 81.4 KiB | 40.5 KiB |
| statistik.mpg.de/api.js | 65.9 KiB | 40.0 KiB |
| web.cmp.usercentrics.eu/ui/v/3.116.0/WebSdk.lib.d00a93b7.js | 56.0 KiB | 35.9 KiB |
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
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Style & Layout | 991 ms |
| Script Evaluation | 808 ms |
| Other | 778 ms |
| Rendering | 183 ms |
| Parse HTML & CSS | 143 ms |
| Script Parsing & Compilation | 94 ms |
| Garbage Collection | 11 ms |
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
Vier Personen in einem Besprechungsraum, mit Laptops und Notizen vor einem Whit… div.container-full-width > a > picture.picture-hero > img.img-hero | /26373310/original-1776178586.webp?t=ZXlKM2FXUjBhQ0k2TVRV... |
Evaluation - Die Verfahren der Max-Planck-Gesellschaft div.col-xs-12 > a > picture > img.img-responsive | |
Talentbegeleiter - Wegweiser durch die Angebote der Personalentwicklung div.col-xs-12 > a > picture > img.img-responsive | |
Nachhaltigkeit in der MPG - Mehr Biodiversität an Max-Planck-Instituten div.col-xs-12 > a > picture > img.img-responsive | |
MaxPlanckForschung 4/2025 Cover div.col-xs-12 > a > picture > img.img-responsive | |
Geomax 32 - Demokratie schützen – was sie gefährdet und wie man sie stärkt div.col-xs-12 > a > picture > img.img-responsive | |
Biomax 40: Voll im Stress?! – Was steckt dahinter?
Wissenschaft auf Spurensuche div.col-xs-12 > a > picture > img.img-responsive | |
Techmax 40: Exoplaneten - Wie die Wissenschaft ferne Welten entdeckt div.col-xs-12 > a > picture > img.img-responsive | |
MaxPlanckForschung 1/2026 Cover div.col-xs-12 > a > picture > img.img-responsive | |
Imagebroschüre der Max-Planck-Gesellschaft div.col-xs-12 > a > picture > img.img-responsive | |
Cover - Jahresbericht 2024 der Max-Planck-Gesellschaft div.col-xs-12 > a > picture > img.img-responsive | |
Highlights 2024 aus dem Jahrbuch der Max-Planck-Gesellschaft div.col-xs-12 > a > picture > img.img-responsive | |
Evaluation - Die Verfahren der Max-Planck-Gesellschaft div.col-xs-12 > a > picture > img.img-responsive | |
Talentbegeleiter - Wegweiser durch die Angebote der Personalentwicklung div.col-xs-12 > a > picture > img.img-responsive | |
Nachhaltigkeit in der MPG - Mehr Biodiversität an Max-Planck-Instituten div.col-xs-12 > a > picture > img.img-responsive | |
MaxPlanckForschung 4/2025 Cover div.col-xs-12 > a > picture > img.img-responsive | |
Geomax 32 - Demokratie schützen – was sie gefährdet und wie man sie stärkt div.col-xs-12 > a > picture > img.img-responsive | |
Biomax 40: Voll im Stress?! – Was steckt dahinter?
Wissenschaft auf Spurensuche div.col-xs-12 > a > picture > img.img-responsive | |
Techmax 40: Exoplaneten - Wie die Wissenschaft ferne Welten entdeckt div.col-xs-12 > a > picture > img.img-responsive | |
MaxPlanckForschung 1/2026 Cover div.col-xs-12 > a > picture > img.img-responsive | |
Imagebroschüre der Max-Planck-Gesellschaft div.col-xs-12 > a > picture > img.img-responsive | |
Cover - Jahresbericht 2024 der Max-Planck-Gesellschaft div.col-xs-12 > a > picture > img.img-responsive | |
Highlights 2024 aus dem Jahrbuch der Max-Planck-Gesellschaft div.col-xs-12 > a > picture > img.img-responsive | |
Evaluation - Die Verfahren der Max-Planck-Gesellschaft div.col-xs-12 > a > picture > img.img-responsive | |
Talentbegeleiter - Wegweiser durch die Angebote der Personalentwicklung div.col-xs-12 > a > picture > img.img-responsive |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
10 table.calendar_table > tbody > tr > td.day |
11 table.calendar_table > tbody > tr > td.day |
12 table.calendar_table > tbody > tr > td.day |
13 table.calendar_table > tbody > tr > td.day |
14 table.calendar_table > tbody > tr > td.day |
15 table.calendar_table > tbody > tr > td.day |
16 table.calendar_table > tbody > tr > td.day |
17 table.calendar_table > tbody > tr > td.day |
18 table.calendar_table > tbody > tr > td.day |
19 table.calendar_table > tbody > tr > td.day |
20 table.calendar_table > tbody > tr > td.day |
22 table.calendar_table > tbody > tr > td.day |
23 table.calendar_table > tbody > tr > td.day |
24 table.calendar_table > tbody > tr > td.day |
25 table.calendar_table > tbody > tr > td.day |
26 table.calendar_table > tbody > tr > td.day |
27 table.calendar_table > tbody > tr > td.day |
28 table.calendar_table > tbody > tr > td.day |
29 table.calendar_table > tbody > tr > td.day |
30 table.calendar_table > tbody > tr > td.day |
These are opportunities to improve the legibility of your content.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Quick Links div.row > div.col-md-12 > div.footer-focus > h4.h3 |
These are opportunities to improve keyboard navigation in your application.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Zahlen & Fakten div.footer-focus > ul.footer-links > li > a |
Jahresbericht div.footer-focus > ul.footer-links > li > a |
Bluesky div.footer-focus > ul.footer-links > li > a.external |
Mastodon div.footer-focus > ul.footer-links > li > a.external |
These items highlight common accessibility best practices.
Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Previous div.container > div.slick-slider > div.slick-slider-content > button.slick-prev |
Next div.container > div.slick-slider > div.slick-slider-content > button.slick-next |
Previous div.container > div.slick-slider > div.box-color-slider > button.slick-prev |
Next div.container > div.slick-slider > div.box-color-slider > button.slick-next |
Best Practices
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.
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.