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Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

36

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLEst Savings
idcdn.de/static/common/img/basis/responsive/iconfonts39/id-icons-m.woff2420 ms
idcdn.de/static-files/common/fonts/Poppins/Poppins400normal.woff2?20231205175 ms
/release/dCPv4iwI6Upv0ya/v5/css/plugins/googlefonts/robot...125 ms
/release/dCPv4iwI6Upv0ya/v5/css/plugins/googlefonts/robot...5.0 ms
fonts.gstatic.com/s/abeezee/v23/esDR31xSG-6AGleN2tWkkA.woff25.0 ms
fonts.gstatic.com/s/abeezee/v23/esDR31xSG-6AGleN2tWkkA.woff25.0 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:75.439 source:map[column:399 line:52 type:source-location url:https://widgets.outbrain.com/outbrain.js urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:0.53 source:map[column:287 line:108 type:source-location url:https://widgets.outbrain.com/outbrain.js urlProvider:network]] map[reflowTime:0.603 source:map[column:44 line:258 type:source-location url:https://widgets.outbrain.com/outbrain.js urlProvider:network]] map[reflowTime:75.439 source:map[column:417 line:51 type:source-location url:https://widgets.outbrain.com/outbrain.js urlProvider:network]] map[reflowTime:162.29 source:map[type:text value:[unattributed]]] map[reflowTime:4.025 source:map[column:409 line:7 type:source-location url:https://www.fr.de/sso/static/login/common/js/id-userid-sso.min-1798d8d1f7e05f44dff8486ffce2b026.js urlProvider:network]] map[reflowTime:0.663 source:map[column:8611 line:11 type:source-location url:https://www.fr.de/fdn/bootstrap/ urlProvider:network]] map[reflowTime:6.278 source:map[column:25004 line:0 type:source-location url:https://idcdn.de/static/common/js/build/vendor/cd7115a64f8f5a67925bef79bbed4fe5/vendor-combined.js urlProvider:network]] map[reflowTime:12.529 source:map[column:62 line:608 type:source-location url:https://widgets.outbrain.com/outbrain.js urlProvider:network]] map[reflowTime:20.19 source:map[column:263 line:264 type:source-location url:https://widgets.outbrain.com/outbrain.js urlProvider:network]] map[reflowTime:15.442 source:map[column:57 line:679 type:source-location url:https://widgets.outbrain.com/outbrain.js urlProvider:network]] map[reflowTime:0.153 source:map[column:3588 line:0 type:source-location url:https://cdn.binsiad.com/ins-ag/ins-ag.min.js?e=1 urlProvider:network]]]

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-0-IMG
nodeLabel: Hochschulpräsident sieht „Noteninflation“ im Abitur – und beklagt „eklatante Mä…
path: 5,HTML,3,BODY,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,IMG
selector: div.id-Teaser-el-image > div.id-RatioWrap > div.id-RatioWrap-content > img
snippet: <img srcset="//www.fr.de/bilder/2026/04/22/94274341/42309452-der-abischnitt-wird-immer-…" sizes="(min-width:900px) 1004px, (min-width:640px) 97vw, (min-width:480px) 96vw, …" src="https://www.fr.de/bilder/2026/04/22/94274341/42309452-der-abischnitt-wird-…" alt="Hochschulpräsident sieht „Noteninflation“ im Abitur&nbsp;– und beklagt „eklatan…">

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
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
idcdn.de/static/common/webfonts/fontCombination/merriweather400700Roboto500.css513 B1.3 s
www.fr.de/static/fr/id-css/60dea8b21062dbbd276fb818ab8d6ad6/prod_touch.css36.0 KiB602 ms
www.fr.de/generated/css/270-89-grid.css693 B

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
cdntrf.com/prebid9.js7200.0 s178.9 KiB
widgets.outbrain.com/outbrain.js14500.0 s109.7 KiB
cdntrf.com/trf-id-fr.js7200.0 s88.9 KiB
client.aps.amazon-adsystem.com/publisher.js3600.0 s82.3 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
js.appboycdn.com/web-sdk/5.6/braze.no-amd.min.js14400.0 s62.8 KiB
utiq.fr.de/utiqLoader.js0.0 ms40.8 KiB
cdn.opencmp.net/tcf-v2/platforms/modern/cmp-latest.js14400.0 s50.5 KiB
cdn.id5-sync.com/api/1.0/id5-api.js3600.0 s34.5 KiB
www.fr.de/fdn/bootstrap/3600.0 s30.4 KiB
cdn.id5-sync.com/api/1.0/id5PrebidModule.js3600.0 s29.2 KiB
cl.k5a.io/614855c8e16cdd72901684f2.module.js3600.0 s29.2 KiB
cdn.binsiad.com/ins-ag/ins-ag.min.js?e=13600.0 s26.3 KiB
secure.cdn.fastclick.net/js/pubcid/latest/pubcid.min.js900.0 s21.7 KiB
macro.adnami.io/macro/gen/adsm.macro.rmb.js13311.0 s25.4 KiB
script.4dex.io/a/latest/adagio.js1800.0 s19.4 KiB
s0.2mdn.net/879366/express_html_inpage_rendering_lib_200_287.js86400.0 s40.9 KiB
amplify.outbrain.com/cp/obtp.js1200.0 s18.0 KiB
cdntrf.com/lib/templates/index.js7200.0 s20.7 KiB
ep2.adtrafficquality.google/sodar/VFc2VJAc.js3000.0 s14.4 KiB
players.yumpu.com/hub.js7200.0 s13.3 KiB
cdn.opencmp.net/tcf-v2/cmp-stub-latest.js14400.0 s11.5 KiB
functions.adnami.io/api/macro/adsm.macro.fr.de.js12140.0 s7.8 KiB
/release/dCPv4iwI6Upv0ya/v5/css/plugins/googlefonts/robot...604800.0 s49.8 KiB
widgets.outbrain.com/nanoWidget/90acd988123_2026-04-20/module/timeline.js?e=114400.0 s5.3 KiB
players.yumpu.com/libs/jquery-1.9.1.min.js?v=245604800.0 s32.7 KiB
cdn.browsiprod.com/web-vitals/web-vitals-4.2.3.js0.0 ms3.0 KiB
/release/j72juZnTEi/v4/js/plugins/bootstrap4/css/bootstra...604800.0 s23.8 KiB
/release/j72juZnTEi/v4/js/plugins/bootstrap4/js/bootstrap...604800.0 s22.1 KiB
cdntrf.com/trfAdSetup.js7200.0 s2.7 KiB
/transform/v3/eyJpdSI6ImRlYWQ3MTRmODBiOGYyOTUxZDFlOTEyYzd...2014934.0 s11.6 KiB
config.aps.amazon-adsystem.com/configs/3d5c995c-a93a-4a9c-9821-d0ff060d6ee83600.0 s1.3 KiB
pagead2.googlesyndication.com/pagead/js/r20260421/r20110914/abg_lite.js1209600.0 s10.5 KiB
id5-sync.com/c/1546/0/8/1.gif?gdpr=0&gdpr_consent=&us_privacy=0.0 ms1.0 KiB
id5-sync.com/c/1546/0/8/1.gif?gdpr=0&gdpr_consent=&us_privacy=0.0 ms1.0 KiB
widgets.outbrainimg.com/nanoWidget/externals/obPixelFrame/obPixelFrame.js14400.0 s1.4 KiB
/s/164/9.gif?puid=ePHvDKRZz3vq3A2vqmAp7mXNnSKxZstvpz1_rMY...0.0 ms916 B
/pagead/js/r20260421/r20110914/client/qs_click_protection...1209600.0 s8.9 KiB
/transform/v3/eyJpdSI6IjI0MDA5YzA5MDcwMmZlMzVlYzc2Mzg4MjZ...1967691.0 s8.7 KiB
/nanoWidget/90acd988123_2026-04-20/module/publisherIDsCol...14400.0 s984 B
widgets.outbrainimg.com/images/widgetIcons/achoice.svg14400.0 s951 B
/api/adx/cm/pixel-outbrain?obUid=ePHvDKRZz3vq3A2vqmAp7mXN...0.0 ms620 B
/transform/v3/eyJpdSI6Ijg2OTFkOGVjMGYwNmJjMjNkYTEwZGYzMTY...2462400.0 s6.1 KiB
players.yumpu.com/libs/json2.js604800.0 s5.5 KiB
wave.outbrain.com/mtWavesBundler/handler/00a49c0df4ad3b69daff39bd1d894be6eb60.0 s539 B
/cookie?redirect_url=https%3A%2F%2Fsync.outbrain.com%2Fco...0.0 ms521 B
/transform/v3/eyJpdSI6ImYwNmE4YzkzZTE1YTg0N2FhNDc1NDczNDJ...2462400.0 s5.1 KiB
/pagead/js/r20260421/r20110914/elements/html/omrhp.js1209600.0 s4.7 KiB
/i?v=1&sr=412x823&vp=412x823&cd=24&md=true&h=21&t=21%3A24...0.0 ms359 B
/match/bounce/?bid=1mpn7m0&uid=ePHvDKRZz3vq3A2vqmAp7mXNnS...0.0 ms354 B
/obuid?uuid=ePHvDKRZz3vq3A2vqmAp7mXNnSKxZstvpz1_rMYMrH2vw...0.0 ms352 B
assets.yumpu.com/release/j72juZnTEi/v4/js/modules/tracking/tracking.js604800.0 s3.0 KiB
tr.outbrain.com/cachedClickId?marketerId=00a49c0df4ad3b69daff39bd1d894be6eb0.0 ms293 B
players.yumpu.com/assets/embed/centipede/arrow_right_dark_retina.png604800.0 s2.6 KiB
widget-pixels.outbrain.com/widget/detect/px.gif?ch=114400.0 s389 B
/track/cmb/generic?ttd_pid=icco6m5&ttd_tpi=1&gdpr=0&gdpr_...0.0 ms254 B
/traffective/1/info?_referrer=https%3A//www.fr.de/&sType=...0.0 ms239 B
assets.yumpu.com/release/dCPv4iwI6Upv0ya/v5/js/modules/embed/bookshelf_player.js604800.0 s2.2 KiB
players.yumpu.com/modules/embed/fullscreenExtensions.js?v=245604800.0 s1.8 KiB
/pagead/js/r20260421/r20110914/client/window_focus_fy2021.js1209600.0 s1.3 KiB
/cm-notify?pi=outbrain&obUid=ePHvDKRZz3vq3A2vqmAp7mXNnSKx...0.0 ms124 B
/release/dCPv4iwI6Upv0ya/v5/css/plugins/bookshelf/bookshe...604800.0 s1.0 KiB
/release/dCPv4iwI6Upv0ya/v5/css/plugins/googlefonts/googl...604800.0 s900 B
/usync/prbds2s?gdpr=0&gdpr_consent=&us_privacy=1---&r=htt...0.0 ms68 B
/AdServer/ImgSync?p=160065&gdpr=0&gdpr_consent=&pu=https%...0.0 ms40 B
/sync?redirect=https%3A%2F%2Fsync.outbrain.com%2Fcookie-s...0.0 ms40 B
/release/j72juZnTEi/v4/js/plugins/bootstrap4/css/bootstra...604800.0 s0 B
players.yumpu.com/libs/jquery-1.9.1.min.js?v=245604800.0 s0 B
/release/j72juZnTEi/v4/js/plugins/bootstrap4/js/bootstrap...604800.0 s0 B
players.yumpu.com/hub.js7200.0 s0 B
/release/dCPv4iwI6Upv0ya/v5/css/plugins/googlefonts/robot...604800.0 s0 B
players.yumpu.com/libs/json2.js604800.0 s0 B
assets.yumpu.com/release/j72juZnTEi/v4/js/modules/tracking/tracking.js604800.0 s0 B
assets.yumpu.com/release/dCPv4iwI6Upv0ya/v5/js/modules/embed/bookshelf_player.js604800.0 s0 B
players.yumpu.com/modules/embed/fullscreenExtensions.js?v=245604800.0 s0 B
/release/dCPv4iwI6Upv0ya/v5/css/plugins/googlefonts/googl...604800.0 s0 B
players.yumpu.com/assets/embed/centipede/arrow_right_dark_retina.png604800.0 s0 B
/release/dCPv4iwI6Upv0ya/v5/css/plugins/bookshelf/bookshe...604800.0 s0 B

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

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.9 s
URLTime Spent
fr.de/1.3 s
www.fr.de/630 ms
www.fr.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.

Why this matters

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 230 ms 29.1 KiB
URLTransfer SizeEst Savings
www.fr.de/static/fr/id-css/60dea8b21062dbbd276fb818ab8d6ad6/prod_touch.css35.7 KiB29.1 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
www.fr.de/2.3 s27 ms6.7 ms
Unattributable2.1 s624 ms0.0 ms
cdntrf.com/prebid9.js1.2 s1.0 s81 ms
/Multivac/api/get?url=https%3A%2F%2Fwww.fr.de%2F&idx=0&ra...821 ms575 ms27 ms
client.aps.amazon-adsystem.com/publisher.js813 ms737 ms60 ms
cdntrf.com/trf-id-fr.js792 ms716 ms47 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js754 ms529 ms83 ms
utiq.fr.de/utiqLoader.js727 ms679 ms18 ms
widgets.outbrain.com/outbrain.js601 ms245 ms40 ms
idcdn.de/static/common/js/vendor/requirejs/require.2.1.18.min.js443 ms342 ms2.2 ms
www.fr.de/fdn/bootstrap/413 ms200 ms15 ms
cdn.opencmp.net/tcf-v2/platforms/modern/cmp-latest.js265 ms216 ms25 ms
securepubads.g.doubleclick.net/tag/js/gpt.js208 ms173 ms34 ms
cl.k5a.io/614855c8e16cdd72901684f2.module.js183 ms165 ms0.9 ms
js.appboycdn.com/web-sdk/5.6/braze.no-amd.min.js162 ms110 ms30 ms
cdn.id5-sync.com/api/1.0/id5-api.js157 ms119 ms16 ms
cdn.binsiad.com/ins-ag/ins-ag.min.js?e=1130 ms93 ms12 ms
cdn.opencmp.net/tcf-v2/cmp-stub-latest.js130 ms103 ms4.0 ms
/static/common/js/build/modules/2883373e8603b86fc54df3725...128 ms122 ms1.6 ms
config.aps.amazon-adsystem.com/configs/3d5c995c-a93a-4a9c-9821-d0ff060d6ee8118 ms108 ms2.5 ms
secure.cdn.fastclick.net/js/pubcid/latest/pubcid.min.js91 ms78 ms11 ms
ep2.adtrafficquality.google/sodar/sodar2.js76 ms68 ms3.8 ms
/sso/static/login/common/js/id-userid-sso.min-1798d8d1f7e...74 ms52 ms3.8 ms
amplify.outbrain.com/cp/obtp.js67 ms54 ms8.8 ms
www.fr.de/static/external/idbraze/id.braze.min.js?v=61661 ms52 ms3.0 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

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation7.4 s
Style & Layout2.3 s
Other2.2 s
Script Parsing & Compilation635 ms
Rendering493 ms
Garbage Collection138 ms
Parse HTML & CSS135 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 with cache-control:no-store header cannot enter back/forward cache.Actionable
The page has an unload handler in a sub frame.Actionable
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

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 381.4 KiB
URLTransfer SizeEst Savings
/pagead/managed/js/gpt/m202604160201/pubads_impl.js187.7 KiB92.8 KiB
cdntrf.com/prebid9.js178.3 KiB64.9 KiB
widgets.outbrain.com/outbrain.js109.3 KiB52.0 KiB
cdntrf.com/trf-id-fr.js88.3 KiB45.6 KiB
js.appboycdn.com/web-sdk/5.6/braze.no-amd.min.js62.5 KiB43.9 KiB
client.aps.amazon-adsystem.com/publisher.js81.9 KiB32.8 KiB
cdn.opencmp.net/tcf-v2/platforms/modern/cmp-latest.js49.8 KiB27.3 KiB
macro.adnami.io/macro/gen/adsm.macro.rmb.js25.1 KiB22.2 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
s0.2mdn.net/sadbundle/5632163487310703144/dream300250/dream300250.jpeg486.1 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js187.7 KiB
cdntrf.com/prebid9.js178.9 KiB
www.googletagmanager.com/gtag/js?id=G-C5NW3HRZCQ&cx=c&gtm=4e64k0174.2 KiB
www.fr.de/135.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-M9CWR6134.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-W9GL68ZQ118.0 KiB
widgets.outbrain.com/outbrain.js109.7 KiB
www.fr.de/favicon.ico102.1 KiB
cdntrf.com/trf-id-fr.js88.9 KiB

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

●Layout shift culprits
●Optimize DOM size
●Improve image delivery
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 6 user timings
●Avoid long main-thread tasks 20 long tasks found
●Image elements have explicit `width` and `height`
●Network Requests
●Network Round Trip Times 1,240 ms
●Server Backend Latencies 1,040 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 370 ms
●Avoid large layout shifts 4 layout shifts found
○INP breakdown
○Avoid non-composited animations
91

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
MAGAZINE div.id-Container-content > ul.id-SimpleTab-nav > li > a.idjs-simpletab-nav-item
Anzeige - DBS Bank div.ob-dynamic-rec-container > a.ob-dynamic-rec-link > section.ob-sub-units > span.ob-unit
Kontakt div.id-LB > div > div.id-Teaser-el--blockStyle--stCnt--link > a.id-Link
Impressum div.id-LB > div > div.id-Teaser-el--blockStyle--stCnt--link > a.id-Link
Redaktionelle Leitlinien div.id-LB > div > div.id-Teaser-el--blockStyle--stCnt--link > a.id-Link
Datenschutz div.id-LB > div > div.id-Teaser-el--blockStyle--stCnt--link > a.id-Link
Utiq verwalten div.id-LB > div > div.id-Teaser-el--blockStyle--stCnt--link > a.id-Link
AGB div.id-LB > div > div.id-Teaser-el--blockStyle--stCnt--link > a.id-Link
Newsletter div.id-LB > div > div.id-Teaser-el--blockStyle--stCnt--link > a.id-Link
Mediadaten div.id-LB > div > div.id-Teaser-el--blockStyle--stCnt--link > a.id-Link
Partner div.id-LB > div > div.id-Teaser-el--blockStyle--stCnt--link > a.id-Link
Anzeigen div.id-LB > div > div.id-Teaser-el--blockStyle--stCnt--link > a.id-Link
Cookie-Einstellungen div > div.id-custom-text2 > button > span.id-Link

These are opportunities to improve the legibility of your content.

Names and labels

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.id-g25-c2 > div.id-Container > div.id-Container-content > iframe div.id-g25-c2 > div.id-Container > div.id-Container-content > iframe
div#id-Container-546194 > div.id-Container-content > div > iframe div#id-Container-546194 > div.id-Container-content > div > iframe
div#id-Container-546195 > div.id-Container-content > div > iframe div#id-Container-546195 > div.id-Container-content > div > iframe

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.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
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These are opportunities to improve keyboard navigation in your application.

○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
●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.
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Image elements do not have `[alt]` attributes that are redundant text.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<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
○Links are distinguishable without relying on color.
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○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.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○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.
54

Best Practices

Trust and Safety

All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Insecure URLRequest Resolution
www.fr.de/Allowed

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Topics
amplify.outbrain.com/cp/obtp.js
AttributionReporting
amplify.outbrain.com/cp/obtp.js

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
www.fr.de/
Access to fetch at 'https://hb-api.omnitagjs.com/hb-api/prebid/v1?RefererUrl=https%3A%2F%2Fwww.fr.de%2F&PageUrl=https%3A%2F%2Fwww.fr.de%2F&PageReferrer=https%3A%2F%2Fwww.fr.de%2F&CanonicalUrl=https%3A%2F%2Fwww.fr.de%2F' from origin 'https://www.fr.de' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
static.cleverpush.com/channel/loader/4Dc5cYweSTjQ74PY5.js
Failed to load resource: net::ERR_BLOCKED_BY_RESPONSE.NotSameOrigin
/hb-api/prebid/v1?RefererUrl=https%3A%2F%2Fwww.fr.de%2F&P...
Failed to load resource: net::ERR_FAILED
tcheck.outbrainimg.com/tcheck/check/d3d3LmZyLmRl
Failed to load resource: the server responded with a status of 404 (Not Found)

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
Blocked by cross-origin policy
●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 clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
100

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

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

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