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.
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.
Performance issues directly impact user engagement and conversion rates.
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.
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 | |
|---|---|---|---|
Offshore Windpark div.img > div > a > img.protected | www.niedersachsen.de/assets/image/988/249536 | 1.0 MiB | 1.0 MiB |
Blick in einen Sitzungsraum mit Tischreihen rechts und links sowie einer Frontr… div > div.slide > a > img | www.niedersachsen.de/assets/image/988/272106 | 852.2 KiB | 803.7 KiB |
Offshore Windpark div > div.slide > a > img.protected | www.niedersachsen.de/assets/image/988/250606 | 582.6 KiB | 534.0 KiB |
China-Reise div > div.slide > a > img | www.niedersachsen.de/assets/image/988/274705 | 413.3 KiB | 364.7 KiB |
Logo Niedersachsen packt an div.img > div > a > img | www.niedersachsen.de/assets/image/988/273853 | 354.7 KiB | 345.2 KiB |
Foto: Heizthermostat div.img > div > a > img.protected | www.niedersachsen.de/assets/image/988/245605 | 303.7 KiB | 294.1 KiB |
Finanzminister Gerald Heere steht am Rednerpult des Niedersächsischen Landtags div > div.slide > a > img | www.niedersachsen.de/assets/image/988/271740 | 311.5 KiB | 262.9 KiB |
Vier Männer und eine Frau sitzen in einer Reihe und blicken in in den Raum. Im … div > div.slide > a > img | www.niedersachsen.de/assets/image/988/273122 | 300.7 KiB | 252.1 KiB |
Logo unbezahlbar & freiwillig div.img > div > a > img | www.niedersachsen.de/assets/image/988/273829 | 214.1 KiB | 204.5 KiB |
div.img > div > a > img.protected div.img > div > a > img.protected | www.niedersachsen.de/assets/image/988/217338 | 164.8 KiB | 155.3 KiB |
"Der Niedersächsische Weg" als Zeichnung div > div.slide > a > img | www.niedersachsen.de/assets/image/988/230632 | 171.2 KiB | 122.6 KiB |
Tag der Niedersachsen div.img > div > a > img | www.niedersachsen.de/assets/image/988/225924 | 112.2 KiB | 102.8 KiB |
Symbolbild Straßenbau div > div.slide > a > img | www.niedersachsen.de/assets/image/988/272737 | 146.0 KiB | 97.4 KiB |
Ausschnitt einer Definition des Worts Rassismus aus einem Wörterbuch div.img > div > a > img | www.niedersachsen.de/assets/image/988/168798 | 76.1 KiB | 71.5 KiB |
Niedersächsischer Weg div.img > div > a > img | www.niedersachsen.de/assets/image/988/231729 | 76.2 KiB | 66.6 KiB |
Projektnetzwerk ländliche Räume, Niedersachsen div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/158874 | 65.5 KiB | 59.2 KiB |
Notfall-Monitor Niedersachsen: ZENTRALE INFORMATIONSSEITE DER LANDESREGIERUNG Z… div.img > div > a > img | www.niedersachsen.de/assets/image/988/257309 | 61.5 KiB | 51.9 KiB |
Symbolbild div.img > div > a > img | www.niedersachsen.de/assets/image/988/254126 | 49.6 KiB | 40.6 KiB |
Arbeitgeber Niedersachsen div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/214327 | 47.1 KiB | 39.0 KiB |
Logo Europa für Niedersachsen div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/266952 | 39.9 KiB | 30.7 KiB |
Logo vom Bündnis für bezahlbares Wohnen in Niedersachsen div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/175446 | 27.5 KiB | 20.5 KiB |
Symbolbild: Einfacher. Schneller. Günstiger. div > div.slide > a > img | www.niedersachsen.de/assets/image/988/255127 | 50.2 KiB | 20.4 KiB |
div.col > div.content > a.dottedborder > img div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/226361 | 18.2 KiB | 13.1 KiB |
div.img > div > a > img div.img > div > a > img | www.niedersachsen.de/assets/image/988/218609 | 7.8 KiB | 7.3 KiB |
Paragraphenzeichen vor einem Gesetzbuch div.img > div > a > img | www.niedersachsen.de/assets/image/988/112105 | 12.7 KiB | 4.8 KiB |
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.
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.
Performance issues directly impact user engagement and conversion rates.
Tap interactions may be delayed by up to 300 ms if the viewport is not optimized for mobile.
Performance issues directly impact user engagement and conversion rates.
head > meta head > meta |
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.
Performance issues directly impact user engagement and conversion rates.
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 |
|---|---|
| niedersachsen.de/ | 898 ms |
| www.niedersachsen.de/ | 811 ms |
| www.niedersachsen.de/startseite/ | 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
Performance issues directly impact user engagement and conversion rates.
| Element | Layout shift score |
|---|---|
Niedersachsen – Energieland Nr. 1
Bildrechte: StK, Ole Spata
Niedersachsen ist… body.mobil > div.wrapper > div.maincontent > div.content | 0.224 |
Einfacher. Schneller. Günstiger.
Bildrechte: StK
Niedersachsen strebt eine sch… div.maincontent > div.content > div#mainpage > div.group | 0.204 |
Niedersachsen – Energieland Nr. 1
Bildrechte: StK, Ole Spata
Niedersachsen ist… body.mobil > div.wrapper > div.maincontent > div.content | 0.120 |
Niedersachsen – Energieland Nr. 1
Bildrechte: StK, Ole Spata
Niedersachsen ist… body.mobil > div.wrapper > div.maincontent > div.content | 0.080 |
div.section > div.col > div.fullslider > div.galctrl div.section > div.col > div.fullslider > div.galctrl | 0.016 |
Niedersachsen – Energieland Nr. 1
Bildrechte: StK, Ole Spata
Niedersachsen ist… body.mobil > div.wrapper > div.maincontent > div.content | 0.005 |
Niedersachsen – Energieland Nr. 1
Bildrechte: StK, Ole Spata
Niedersachsen ist… body.mobil > div.wrapper > div.maincontent > div.content | 0.005 |
Diagnostics
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.niedersachsen.de/assets/css/ds2.css?v=1753091405 | 48.8 KiB | 13.5 KiB |
| www.niedersachsen.de/assets/css/cssfixes.css?v=1684828951 | 8.5 KiB | 2.9 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.niedersachsen.de/assets/js/video-js-7.20.1/video-js.min.css?v=1657706794 | 40.0 KiB | 40.0 KiB |
| www.niedersachsen.de/assets/css/ds2.css?v=1753091405 | 48.7 KiB | 36.2 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 |
|---|---|---|
| www.niedersachsen.de/assets/js/video-js-7.20.1/video.min.js | 568.5 KiB | 503.5 KiB |
| www.niedersachsen.de/assets/js/datatable/datatables.min.js | 113.4 KiB | 97.1 KiB |
| www.niedersachsen.de/piwik.php | 64.8 KiB | 37.5 KiB |
| www.niedersachsen.de/assets/js/jquery-3.4.1.min.js | 86.1 KiB | 35.0 KiB |
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.niedersachsen.de/assets/js/fds.live.js?v=1774534987 | 20.4 KiB | 10.3 KiB |
| www.niedersachsen.de/assets/js/ds.js?v=1583755880 | 18.2 KiB | 6.0 KiB |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
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
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
Offshore Windpark div.img > div > a > img.protected | www.niedersachsen.de/assets/image/988/249536 |
div.img > div > a > img div.img > div > a > img | www.niedersachsen.de/assets/image/988/218609 |
Logo Niedersachsen packt an div.img > div > a > img | www.niedersachsen.de/assets/image/988/273853 |
Logo unbezahlbar & freiwillig div.img > div > a > img | www.niedersachsen.de/assets/image/988/273829 |
Ausschnitt einer Definition des Worts Rassismus aus einem Wörterbuch div.img > div > a > img | www.niedersachsen.de/assets/image/988/168798 |
Foto: Heizthermostat div.img > div > a > img.protected | www.niedersachsen.de/assets/image/988/245605 |
Symbolbild: Einfacher. Schneller. Günstiger. div > div.slide > a > img | www.niedersachsen.de/assets/image/988/255127 |
Symbolbild: Einfacher. Schneller. Günstiger. div > div.slide > a > img | www.niedersachsen.de/assets/image/988/255127 |
China-Reise div > div.slide > a > img | www.niedersachsen.de/assets/image/988/274705 |
Vier Männer und eine Frau sitzen in einer Reihe und blicken in in den Raum. Im … div > div.slide > a > img | www.niedersachsen.de/assets/image/988/273122 |
Symbolbild Straßenbau div > div.slide > a > img | www.niedersachsen.de/assets/image/988/272737 |
Finanzminister Gerald Heere steht am Rednerpult des Niedersächsischen Landtags div > div.slide > a > img | www.niedersachsen.de/assets/image/988/271740 |
Offshore Windpark div > div.slide > a > img.protected | www.niedersachsen.de/assets/image/988/250606 |
China-Reise div > div.slide > a > img | www.niedersachsen.de/assets/image/988/274705 |
Vier Männer und eine Frau sitzen in einer Reihe und blicken in in den Raum. Im … div > div.slide > a > img | www.niedersachsen.de/assets/image/988/273122 |
Symbolbild Straßenbau div > div.slide > a > img | www.niedersachsen.de/assets/image/988/272737 |
Finanzminister Gerald Heere steht am Rednerpult des Niedersächsischen Landtags div > div.slide > a > img | www.niedersachsen.de/assets/image/988/271740 |
Offshore Windpark div > div.slide > a > img.protected | www.niedersachsen.de/assets/image/988/250606 |
"Der Niedersächsische Weg" als Zeichnung div > div.slide > a > img | www.niedersachsen.de/assets/image/988/230632 |
"Der Niedersächsische Weg" als Zeichnung div > div.slide > a > img | www.niedersachsen.de/assets/image/988/230632 |
"Der Niedersächsische Weg" als Zeichnung div > div.slide > a > img | www.niedersachsen.de/assets/image/988/230632 |
Blick in einen Sitzungsraum mit Tischreihen rechts und links sowie einer Frontr… div > div.slide > a > img | www.niedersachsen.de/assets/image/988/272106 |
Blick in einen Sitzungsraum mit Tischreihen rechts und links sowie einer Frontr… div > div.slide > a > img | www.niedersachsen.de/assets/image/988/272106 |
Symbolbild div.img > div > a > img | www.niedersachsen.de/assets/image/988/254126 |
Notfall-Monitor Niedersachsen: ZENTRALE INFORMATIONSSEITE DER LANDESREGIERUNG Z… div.img > div > a > img | www.niedersachsen.de/assets/image/988/257309 |
Niedersächsischer Weg div.img > div > a > img | www.niedersachsen.de/assets/image/988/231729 |
div.img > div > a > img.protected div.img > div > a > img.protected | www.niedersachsen.de/assets/image/988/217338 |
Tag der Niedersachsen div.img > div > a > img | www.niedersachsen.de/assets/image/988/225924 |
Logo Europa für Niedersachsen div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/266952 |
Arbeitgeber Niedersachsen div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/214327 |
Paragraphenzeichen vor einem Gesetzbuch div.img > div > a > img | www.niedersachsen.de/assets/image/988/112105 |
Logo vom Bündnis für bezahlbares Wohnen in Niedersachsen div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/175446 |
Projektnetzwerk ländliche Räume, Niedersachsen div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/158874 |
div.col > div.content > a.dottedborder > img div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/226361 |
Logo für Kommission Niedersachsen 2030 div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/182123 |
div.col > div.content > a.dottedborder > img div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/182116 |
Graphisches Element mit Hinweis auf Facebook div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/176500 |
Graphisches Element mit Hinweis auf YouTube div.col > div.content > a.dottedborder > img | www.niedersachsen.de/assets/image/250/176503 |
Niedersachsen klar Logo div.section > div.mobinav > span.klar > img | www.niedersachsen.de/assets/img/klar.png |
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.
Names and labels
When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.col > div.fullslider > div.prev > button div.col > div.fullslider > div.prev > button |
div.col > div.fullslider > div.next > button div.col > div.fullslider > div.next > button |
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.fullslider > div.galctrl > div.startstop > a.js-stop-slide div.fullslider > div.galctrl > div.startstop > a.js-stop-slide |
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
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 |
|---|
22.04.2026 div.galSlider > div.col > div.content > span.datum |
Drucken div.content > div#mainpage > div.teilerzeile > a#print |
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 |
|---|
PRESSEINFORMATIONEN div.maincontent > div.content > div.bcolb0 > h4 |
These are opportunities to improve keyboard navigation in your application.
Best practices
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
html html |
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 |
|---|
Niedersachsen stärkt Kooperation bei Mobilität, Häfen und Innovation div.slide > div.desc > h2 > a |
Best Practices
General
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.
Performance issues directly impact user engagement and conversion rates.
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
Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.
Performance issues directly impact user engagement and conversion rates.
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.
Crawling and Indexing
Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable
Performance issues directly impact user engagement and conversion rates.
| Uncrawlable Link |
|---|
div.fullslider > div.galctrl > div.startstop > a.js-start-slide div.fullslider > div.galctrl > div.startstop > a.js-start-slide |
div.fullslider > div.galctrl > div.startstop > a.js-stop-slide div.fullslider > div.galctrl > div.startstop > a.js-stop-slide |
To appear in search results, crawlers need access to your app.