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.
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.
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 | |
|---|---|---|---|
Construction work on a railway line section.current-topics > div.current-topics__cards > muse-card > img | /portal/media/small_Foto2_von_Kevin_Seibel_auf_Pixabay_ba... | 103.7 KiB | 57.7 KiB |
Logo NextGenerationEU muse-footer > muse-footer-logo.footer__logo-link > img.is-image-color | /portal/media/EN_Funded_by_the_European_Union_RGB_POS_5d7... | 37.8 KiB | 37.5 KiB |
Selfies by the sea section.current-topics > div.current-topics__cards > muse-card > img | verwaltung.bund.de/portal/media/small_Pelayo_Arbues_unsplash_258482be33.jpg | 78.2 KiB | 32.0 KiB |
Logo Gründungswoche Deutschland div.logos-teaser__logos-container > div > a.logos-teaser__logo-link > img.logos-teaser__logo-image | verwaltung.bund.de/portal/media/thumbnail_gruenderwoche_c28782066d.jpeg | 15.6 KiB | 12.1 KiB |
Logo Das Datenportal für Deutschland GOVDATA div.logos-teaser__logos-container > div > a.logos-teaser__logo-link > img.logos-teaser__logo-image | verwaltung.bund.de/portal/media/thumbnail_govdata_0a671bb0b9.jpeg | 13.9 KiB | 10.4 KiB |
Logo Deutschland sicher im Netz div.logos-teaser__logos-container > div > a.logos-teaser__logo-link > img.logos-teaser__logo-image | verwaltung.bund.de/portal/media/thumbnail_banner_sicher_im_netz_7e09bbbe48.jpeg | 12.7 KiB | 9.2 KiB |
Logo Gut Leben in Deutschland div.logos-teaser__logos-container > div > a.logos-teaser__logo-link > img.logos-teaser__logo-image | /portal/media/thumbnail_gut_leben_in_deutschland_4a5c314d... | 12.6 KiB | 9.1 KiB |
Logo Deutsche Digitale Bibliothek div.logos-teaser__logos-container > div > a.logos-teaser__logo-link > img.logos-teaser__logo-image | /portal/media/thumbnail_banner_deutsche_digitale_biblioth... | 11.8 KiB | 8.2 KiB |
Logo wir sind bund div.logos-teaser__logos-container > div > a.logos-teaser__logo-link > img.logos-teaser__logo-image | verwaltung.bund.de/portal/media/thumbnail_wir_sind_bund_Logo_fb9c868926.jpeg | 11.0 KiB | 7.5 KiB |
Logo karriere.bund.de div.logos-teaser__logos-container > div > a.logos-teaser__logo-link > img.logos-teaser__logo-image | verwaltung.bund.de/portal/media/thumbnail_karriere_bund_klein02_b115201d42.png | 10.6 KiB | 7.0 KiB |
Logo Deutschland Digital Sicher BSI div.logos-teaser__logos-container > div > a.logos-teaser__logo-link > img.logos-teaser__logo-image | /portal/media/thumbnail_banner_bsi_fuer_buerger_d71c7d78d... | 10.0 KiB | 6.4 KiB |
Logo Stiftung Datenschutz div.logos-teaser__logos-container > div > a.logos-teaser__logo-link > img.logos-teaser__logo-image | /portal/media/thumbnail_banner_stiftungdatenschutz_ce0f5e... | 9.1 KiB | 5.6 KiB |
Mother holding the hand of her infant section.current-topics > div.current-topics__cards > muse-card > img | /portal/media/small_mariano_rivas_WA_5g_C3_h78_unsplash_0... | 31.0 KiB | 4.6 KiB |
Thoughtful woman section.current-topics > div.current-topics__cards > muse-card > img | /portal/media/small_denys_nevozhai_z0n_Vqfr_Oq_WA_unsplas... | 28.6 KiB | 4.3 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 |
|---|---|
| bund.de/ | 807 ms |
| verwaltung.bund.de/ | 763 ms |
| verwaltung.bund.de/portal/ | 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 |
|---|---|
footer.footer footer.footer | 0.564 |
footer.footer footer.footer | 0.252 |
footer.footer footer.footer | 0.058 |
Help us improve the federal portal!
The Federal Portal is a central building b… div.cookie-banner-container | 0.024 |
body.is-home body.is-home | 0.019 |
header.header > div.header__main-wrapper > div.header__main > div.header__menu-area header.header > div.header__main-wrapper > div.header__main > div.header__menu-area | 0.002 |
header.header > div.header__main-wrapper > div.header__main > div.header__menu-area header.header > div.header__main-wrapper > div.header__main > div.header__menu-area | 0.000 |
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 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 |
|---|---|---|
| verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js | 218.2 KiB | 71.0 KiB |
| verwaltung.bund.de/leistungsverzeichnis/scripts/lv-search.v3.bundle.js | 118.3 KiB | 33.1 KiB |
| verwaltung.bund.de/konto/scripts/konto-frontend/p-58c65092.entry.js | 62.1 KiB | 32.2 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
| verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js | 1.2 s | 942 ms | 4.5 ms |
| Unattributable | 563 ms | 40 ms | 0.0 ms |
| verwaltung.bund.de/portal/ | 502 ms | 7.4 ms | 1.6 ms |
| verwaltung.bund.de/leistungsverzeichnis/scripts/lv-search.v3.bundle.js | 215 ms | 208 ms | 1.9 ms |
| verwaltung.bund.de/konto/scripts/konto-frontend/p-bLMYUFxa.js | 104 ms | 70 ms | 0.2 ms |
| verwaltung.bund.de/konto/scripts/konto-frontend/p-58c65092.entry.js | 58 ms | 49 ms | 1.3 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
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Script Evaluation | 1.3 s |
| Other | 848 ms |
| Style & Layout | 346 ms |
| Rendering | 129 ms |
| Parse HTML & CSS | 72 ms |
| Script Parsing & Compilation | 20 ms |
Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure type |
|---|---|
| Pages whose main resource has cache-control:no-store cannot enter back/forward cache. | Not actionable |
| Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header. | Not actionable |
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 |
|---|---|---|
| html { font-family: sans-serif; text-size-adjust: 100%; } … | 33.0 KiB | 4.4 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 |
|---|---|---|
| html { font-family: sans-serif; text-size-adjust: 100%; } … | 33.0 KiB | 32.0 KiB |
| :root { --muse-font-family-default: "Fira Sans", sans-serif; --muse-icon-size-xxs: 16px; --muse-ico… | 21.1 KiB | 20.0 KiB |
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 |
|---|
Privacy Policy div.cookie-banner > div.cookie-banner-body > p > a |
These are opportunities to improve the legibility of your content.
Best Practices
General
Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js line 93, col 4387 | Applying inline style violates the following Content Security Policy directive 'style-src 'self' 'nonce-9873936''. Either the 'unsafe-inline' keyword, a hash ('sha256-a+5iQLKgOMjX+/MfqtkveQnjdhaFHQkNmebfh/uZOQI='), or a nonce ('nonce-...') is required to enable inline execution. Note that hashes do not apply to event handlers, style attributes and javascript: navigations unless the 'unsafe-hashes' keyword is present. The action has been blocked. |
verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js line 20, col 18884 | Applying inline style violates the following Content Security Policy directive 'style-src 'self' 'nonce-9873936''. Either the 'unsafe-inline' keyword, a hash ('sha256-a+5iQLKgOMjX+/MfqtkveQnjdhaFHQkNmebfh/uZOQI='), or a nonce ('nonce-...') is required to enable inline execution. Note that hashes do not apply to event handlers, style attributes and javascript: navigations unless the 'unsafe-hashes' keyword is present. The action has been blocked. |
Applying inline style violates the following Content Security Policy directive 'style-src 'self' 'nonce-9873936''. Either the 'unsafe-inline' keyword, a hash ('sha256-a+5iQLKgOMjX+/MfqtkveQnjdhaFHQkNmebfh/uZOQI='), or a nonce ('nonce-...') is required to enable inline execution. Note that hashes do not apply to event handlers, style attributes and javascript: navigations unless the 'unsafe-hashes' keyword is present. The action has been blocked. | |
verwaltung.bund.de/konto/scripts/konto-frontend/p-bLMYUFxa.js line 1, col 1581 | Applying inline style violates the following Content Security Policy directive 'style-src 'self' 'nonce-9873936''. Either the 'unsafe-inline' keyword, a hash ('sha256-AcTU+4WjdxTemFkSA7bsI5V8rEl0WiZUMEV2eGEZqKI='), or a nonce ('nonce-...') is required to enable inline execution. The action has been blocked. |
Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.
Performance issues directly impact user engagement and conversion rates.
| Issue type |
|---|
| Content security policy |
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.
Canonical links suggest which URL to show in search results. Learn more about canonical links.
Informational: a Permissions-Policy directive showing feature -> allowed origins.
Source: MDN Permissions-Policy
Format your HTML in a way that enables crawlers to better understand your app’s content.