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Results for https://bund.de

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DE · EUR (€) · Estimated Applicable regulations: DSGVO · ePrivacy Directive · EAA Dev cost: €90/hr How jurisdiction is detected
Singapore Singapore · Singapore Completed: Apr 21, 2026 19:00 UTC
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Mobile 375 × 812

Screenshot of the audited page (Mobile 375×812)

Desktop 1440 × 900

Screenshot of the audited page (Desktop 1440×900)
C74

Site Health

Score: 74 / 100

Based on 8 categories, 0 sections

Decent speed, but optimizing further could improve engagement.

Good foundation, but a few gaps could be exploited.

Several issues make your site difficult for assistive technology users.

Solid SEO basics — a few optimizations could boost rankings.

Good server performance with room for optimization.

Several regulatory requirements are not yet met.

Missing metadata means poor previews on social media and search.

Reasonable footprint with room for optimization.

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

How the composite score is calculated

How you compare

Google Search Console · 2306 peers
You 74
·
Avg 73
At average
0 50 100
Better than 55% of Google Search Console sites See full Google Search Console benchmark →
Apache · 269 peers
You 74
·
Avg 73
At average
0 50 100
Better than 52% of Apache sites See full Apache benchmark →

Top Priorities (5)

1

Content-Security-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers
2

HSTS header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers
3

No Content-Security-Policy header found

Security gaps expose your site and users to attacks, eroding trust.

Security › Content Security Policy
4

No <main> landmark found

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Landmark Structure
5

87 third-party resources (100% of weight)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Inventory
View fix priority matrix

Fix Priority Matrix

5 findings

Quick Wins

3

High impact, low effort — start here.

Strategic

2

High impact, requires investment.

Easy Improvements

0

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

0

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →
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What fixing these means

Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 5.2s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Addressing the critical issues below would have the most immediate impact on your user trust.

3 security gaps detected — browsers may warn visitors about your site.
1 accessibility issue excludes users who rely on assistive technology.
Your LCP is 5.2s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.

Conversion Barriers

3 critical 7 warning

10 barrier(s) likely increasing bounce by ~39%.

Speed (2)

Page takes 5.2s to load

+12% bounce

Users abandon at ~3s — you're 2.7s over the 2.5s threshold

Fix: Optimize render-blocking resources, preload the hero image, and compress images

High main-thread blocking time

+2% bounce

Page is non-interactive for 306ms after first paint

Fix: Defer third-party scripts and split large bundles

Trust (2)

No HSTS header

+1% bounce

Returning visitors are briefly exposed to downgrade attacks on first request

Fix: Set Strict-Transport-Security: max-age=31536000; includeSubDomains

No Content-Security-Policy header

+1% bounce

Higher XSS blast radius — one compromised script can exfiltrate the checkout form

Fix: Ship a reporting-only CSP first, then enforce once violations are clean

Usability (2)

Severe layout shift during page load

+6% bounce

Users mis-click when content jumps — converting intent into frustration

Fix: Reserve space for images, ads, and embeds with explicit width/height

No viewport meta tag

+15% bounce

Mobile browsers render at desktop width and shrink — text unreadable, tap targets miniature

Fix: Add <meta name="viewport" content="width=device-width, initial-scale=1">

Content (3)

No Open Graph tags

+2% bounce

Links shared on LinkedIn / Slack / Facebook show bare URLs — referral clicks drop

Fix: Add og:title, og:description, og:image, og:url to the page head

No structured data

+2% bounce

No rich-result eligibility in Google — lower SERP CTR vs competitors with stars and prices

Fix: Add JSON-LD for your page type (Product, Article, FAQPage, LocalBusiness, …)

Thin content

+3% bounce

Under 300 words — visitors bounce looking for substance, search engines rank competitors first

Fix: Add a substantive FAQ, product detail, or case-study section

Navigation (1)

No skip-to-content link

+1% bounce

Keyboard and screen-reader users must tab through the entire header on every page

Fix: Add a visible-on-focus <a href="#main">Skip to content</a> as the first focusable element

Preliminary CRO audit — each barrier links to the tab with detailed analysis.

Return on Investment

€450 investment → €3,185/month returns + EUR 120,500,000 risk avoided

Payback period: < 1 month First-year ROI: +8393%

Investment

€450

5h · 5 findings

Monthly returns

€3,185 /mo

~€38,220 / year

  • Conversions recovered €3,185
  • Bandwidth savings €0.26

Regulatory risk avoided

EUR 120,500,000

if kept compliant

  • ePrivacy Directive EUR 100,000,000
  • DSGVO EUR 20,000,000
  • EAA EUR 500,000

Payback period

0 12mo 24mo

€135 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Full methodology & sources

Estimated Remediation Cost

€450

5.0 developer hours at €90/hr

Based on Germany rates (€90/hr)

Quick wins
€135 3 fixes in ~90 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions
/hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

€10,041,667 / month at risk

~€120,500,003 / year if left unfixed

Compliance Risk

€120,500,000

ePrivacy DirectiveDSGVOEAA
  • No privacy policy link detected
    DSGVO: EUR 10,000 – EUR 20,000,000
  • Trackers detected but no cookie policy found
    DSGVO: EUR 5,000 – EUR 10,000,000
  • Trackers detected but no cookie policy found
    DSGVO: EUR 10,000 – EUR 20,000,000

+7 more

Bandwidth Waste

€0.26 /mo

3491.3 MB/mo × 0.074 EUR/GB

  • Optimize transfer: save ~349 KB per page load
    Saves €0.26/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Unique monthly visitors from your analytics

Purchases, signups, or key actions

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue
Current bounce (est.)
After fixes (est.)
Estimated bounce reduction

Fix 4 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

35
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
92
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
85
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

3.12 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

5.17 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

306 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.920

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

11.63 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

5.62 s

Detailed Report

Audit breakdown by category with detailed findings.

35

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

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

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.

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:0.9201159999999999] map[node:map[boundingRect:map[bottom:5694 height:956 left:0 right:412 top:4738 width:412] lhId:page-19-FOOTER nodeLabel:footer.footer path:1,HTML,1,BODY,4,P-FOOTER,a,#document-fragment,0,MUSE-FOOTER,a,#document-fragment,1,FOOTER selector:footer.footer snippet:<footer class="footer"> type:node] score:0.563807 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:5392 height:48 left:67 right:143 top:5344 width:76] lhId:page-25-IMG nodeLabel:Logo OZG path:1,HTML,1,BODY,4,P-FOOTER,a,#document-fragment,0,MUSE-FOOTER,3,MUSE-FOOTER-LOGO,0,IMG selector:muse-footer > muse-footer-logo.footer__logo-link > img snippet:<img alt="Logo OZG" src="/portal/media/logo_ozg_18ac90f949.svg" class=""> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:5694 height:956 left:0 right:412 top:4738 width:412] lhId:page-19-FOOTER nodeLabel:footer.footer path:1,HTML,1,BODY,4,P-FOOTER,a,#document-fragment,0,MUSE-FOOTER,a,#document-fragment,1,FOOTER selector:footer.footer snippet:<footer class="footer"> type:node] score:0.251955 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:5392 height:48 left:67 right:143 top:5344 width:76] lhId:page-25-IMG nodeLabel:Logo OZG path:1,HTML,1,BODY,4,P-FOOTER,a,#document-fragment,0,MUSE-FOOTER,3,MUSE-FOOTER-LOGO,0,IMG selector:muse-footer > muse-footer-logo.footer__logo-link > img snippet:<img alt="Logo OZG" src="/portal/media/logo_ozg_18ac90f949.svg" class=""> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:5694 height:956 left:0 right:412 top:4738 width:412] lhId:page-19-FOOTER nodeLabel:footer.footer path:1,HTML,1,BODY,4,P-FOOTER,a,#document-fragment,0,MUSE-FOOTER,a,#document-fragment,1,FOOTER selector:footer.footer snippet:<footer class="footer"> type:node] score:0.058323 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:5392 height:48 left:67 right:143 top:5344 width:76] lhId:page-25-IMG nodeLabel:Logo OZG path:1,HTML,1,BODY,4,P-FOOTER,a,#document-fragment,0,MUSE-FOOTER,3,MUSE-FOOTER-LOGO,0,IMG selector:muse-footer > muse-footer-logo.footer__logo-link > img snippet:<img alt="Logo OZG" src="/portal/media/logo_ozg_18ac90f949.svg" class=""> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:811 height:540 left:12 right:400 top:271 width:388] lhId:page-22-DIV nodeLabel:Help us improve the federal portal! The Federal Portal is a central building b… path:1,HTML,1,BODY,2,P-HEADER,a,#document-fragment,0,P-COOKIE-BANNER,a,#document-fragment,0,DIV selector:div.cookie-banner-container snippet:<div class="cookie-banner-container" data-testid="cookie-banner" lang="EN"> type:node] score:0.023807 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:20 height:18 left:20 right:49 top:2 width:29] lhId:page-29-IMG nodeLabel:Flag of the Federal Republic of Germany path:1,HTML,1,BODY,2,P-HEADER,a,#document-fragment,2,MUSE-HEADER,0,P-HEADER-BANNER,a,#document-fragment,0,SECTION,0,DIV,0,IMG selector:section.header-banner > div > img snippet:<img src="data:image/webp;base64,UklGRkQAAABXRUJQVlA4TDcAAAAvf8JfABcwzgKBJJb9lXaJ+Q/…" alt="Flag of the Federal Republic of Germany" loading="lazy"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:5694 height:5694 left:0 right:412 top:0 width:412] lhId:page-15-BODY nodeLabel:body.is-home path:1,HTML,1,BODY selector:body.is-home snippet:<body class="is-home "> type:node] score:0.019441]]

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.

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
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 KiB57.7 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 KiB37.5 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.jpg78.2 KiB32.0 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.jpeg15.6 KiB12.1 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.jpeg13.9 KiB10.4 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.jpeg12.7 KiB9.2 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 KiB9.1 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 KiB8.2 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.jpeg11.0 KiB7.5 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.png10.6 KiB7.0 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 KiB6.4 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 KiB5.6 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 KiB4.6 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 KiB4.3 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:5584.378 label:Time to first byte subpart:timeToFirstByte] map[duration:1783.316 label:Resource load delay subpart:resourceLoadDelay] map[duration:165.565 label:Resource load duration subpart:resourceLoadDuration] map[duration:21.822 label:Element render delay subpart:elementRenderDelay]]
lhId: page-14-IMG
nodeLabel: img.start-stage__background-image
path: 1,HTML,1,BODY,3,MAIN,0,P-START-PAGE,a,#document-fragment,0,SECTION,0,P-START-STAGE,a,#document-fragment,0,SECTION,0,DIV,0,P-RESPONSIVE-IMAGE,a,#document-fragment,0,IMG
selector: img.start-stage__background-image
snippet: <img srcset="/portal/media/thumbnail_header_image_bundesportal_1_francesco_luca_labianc…" src="/portal/media/small_header_image_bundesportal_1_francesco_luca_labianca_s6…" sizes="100dvw" alt="" class="start-stage__background-image">

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-14-IMG
nodeLabel: img.start-stage__background-image
path: 1,HTML,1,BODY,3,MAIN,0,P-START-PAGE,a,#document-fragment,0,SECTION,0,P-START-STAGE,a,#document-fragment,0,SECTION,0,DIV,0,P-RESPONSIVE-IMAGE,a,#document-fragment,0,IMG
selector: img.start-stage__background-image
snippet: <img srcset="/portal/media/thumbnail_header_image_bundesportal_1_francesco_luca_labianc…" src="/portal/media/small_header_image_bundesportal_1_francesco_luca_labianca_s6…" sizes="100dvw" alt="" class="start-stage__background-image">

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

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.6 s

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
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.

Why this matters

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

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.

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 Evaluation1.3 s
Other848 ms
Style & Layout346 ms
Rendering129 ms
Parse HTML & CSS72 ms
Script Parsing & Compilation20 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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 4.4 KiB
URLTransfer SizeEst Savings
html { font-family: sans-serif; text-size-adjust: 100%; } …33.0 KiB4.4 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Use efficient cache lifetimes
Optimize DOM size
Font display
Forced reflow
Modern HTTP
Render blocking requests
Optimize viewport for mobile
Minify JavaScript
Avoids enormous network payloads Total size was 1,121 KiB
Avoid long main-thread tasks 10 long tasks found
Image elements have explicit `width` and `height`
Network Requests
Network Round Trip Times 160 ms
Server Backend Latencies 10 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 230 ms
INP breakdown
User Timing marks and measures
Avoid non-composited animations
97

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
Privacy Policy div.cookie-banner > div.cookie-banner-body > p > a

These are opportunities to improve the legibility of your content.

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]`s are contained by their required parent element
`[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
Form elements have associated labels
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`button`, `link`, and `menuitem` elements have accessible names
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 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
No element has a `[tabindex]` value greater than 0
Touch targets have sufficient size and spacing.
`[lang]` attributes have a valid value
Heading elements appear in a sequentially-descending order
Document has a main landmark.
Deprecated ARIA roles were not used
Identical links have the same purpose.
`[accesskey]` values are unique
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.
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
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Select elements have associated label elements.
Skip links are focusable.
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.
`<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.
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.
92

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
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.
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-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.

Why this matters

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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
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
Redirects HTTP traffic to HTTPS
Mitigate clickjacking with XFO or CSP
85

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Canonical links suggest which URL to show in search results. Learn more about canonical links.

Why this matters

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.

Structured data is valid
Page isn’t blocked from indexing
Document has a `<title>` element
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`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

90
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
83
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

649 ms

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

690 ms

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

4 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.004

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

5.59 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

700 ms

Detailed Report

Audit breakdown by category with detailed findings.

90

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

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

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.

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.

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:7719.934 label:Time to first byte subpart:timeToFirstByte] map[duration:1357.171 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-SPAN
nodeLabel: a.link > span.link__content
path: 1,HTML,1,BODY,2,P-HEADER,a,#document-fragment,2,MUSE-HEADER,5,K-ACCOUNT-MENU,0,MUSE-LINK,a,#document-fragment,1,A,1,SPAN
selector: a.link > span.link__content
snippet: <span class="link__content">

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

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

Estimated savings: 40 ms 81.7 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
Internal error.Not actionable

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

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: 407 ms
Use efficient cache lifetimes
Layout shift culprits
Optimize DOM size
Font display
Forced reflow
Improve image delivery
Modern HTTP
Render blocking requests
Optimize viewport for mobile
Time to Interactive 0.7 s
Max Potential First Input Delay 60 ms
Minify CSS
Minify JavaScript
Reduce unused CSS
Avoids enormous network payloads Total size was 228 KiB
JavaScript execution time 0.1 s
Minimizes main-thread work 0.2 s
Avoid long main-thread tasks 1 long task found
Image elements have explicit `width` and `height`
Network Requests
Network Round Trip Times 160 ms
Server Backend Latencies 10 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 190 ms
Avoid large layout shifts 1 layout shift found
INP breakdown
LCP request discovery
User Timing marks and measures
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.
`button`, `link`, and `menuitem` elements have accessible names
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 have a discernible name
No element has a `[tabindex]` value greater than 0
Touch targets have sufficient size and spacing.
`[lang]` attributes have a valid value
Document has a main landmark.
Deprecated ARIA roles were not used
`[accesskey]` values are unique
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
Heading elements appear in a sequentially-descending order
`<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.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Select elements have associated label elements.
Skip links are focusable.
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.
`<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.
96

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
ApiError: Generic Error at MI (https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:434:2993) at https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:434:3268
ApiError: Generic Error at MI (https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:434:2993) at https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:434:3268
ApiError: Generic Error at MI (https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:434:2993) at https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:434:3268
ApiError: Generic Error at tO (https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:126:7971) at https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:126:8246
ApiError: Generic Error at tO (https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:126:7971) at https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:126:8246
ApiError: Generic Error at tO (https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:126:7971) at https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:126:8246
ApiError: Generic Error at tO (https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:126:7971) at https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780.js:126:8246
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
Failed to load resource: the server responded with a status of 429 ()
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780147.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780185.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780186.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780187.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780197.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780197.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780200.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780201.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780202.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780213.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-2933780216.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-293378033.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-293378037.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-293378056.js
TypeError: Failed to fetch dynamically imported module: https://verwaltung.bund.de/portal/public/assets/portal-frontend.2.0.0-293378084.js

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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 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
Redirects HTTP traffic to HTTPS
Mitigate clickjacking with XFO or CSP
83

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Canonical links suggest which URL to show in search results. Learn more about canonical links.

Why this matters

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.

Structured data is valid
Page isn’t blocked from indexing
Document has a `<title>` element
Page has successful HTTP status code
Links have descriptive text
Links are crawlable
Image elements have `[alt]` attributes
Document has a valid `hreflang`
robots.txt is valid

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