Lighthouse Mobile

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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.

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.

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.

Request	Cache TTL	Transfer Size
taz.de/picture/8391415/665/40964926.webp	120.0 s	88.7 KiB
taz.de/picture/8391927/665/40976751.webp	120.0 s	82.0 KiB
taz.de/picture/8391476/665/40984150.webp	120.0 s	79.8 KiB
taz.de/picture/8391994/665/40983430.webp	120.0 s	77.9 KiB
taz.de/picture/8392287/665/40983740.webp	120.0 s	74.8 KiB
taz.de/picture/8392281/665/40984134.webp	120.0 s	41.4 KiB
taz.de/lib/taz-verlag-node/js/swiper/swiper-bundle.esm.browser.min.js	120.0 s	40.6 KiB
cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js	3600.0 s	42.5 KiB
taz.de/lib/taz-verlag-node/css/styles__news.min.css	120.0 s	33.7 KiB
taz.de/lib/taz-verlag-node/js/alpinejs/dist/module.esm.js	120.0 s	25.3 KiB
taz.de/lib/taz-verlag-node/icons/instagram_white_darkhov.svg	120.0 s	25.1 KiB
taz.de/lib/taz-verlag-node/fonts/KnileCondensed-Light.woff2	120.0 s	23.0 KiB
taz.de/lib/taz-verlag-node/fonts/KnileCompressed-Light.woff2	120.0 s	22.9 KiB
taz.de/lib/share/js/piwik.js	120.0 s	22.4 KiB
taz.de/picture/8391802/665/40984581.webp	120.0 s	22.1 KiB
taz.de/lib/taz-verlag-node/fonts/AktivGrotesk_W_It.latin.woff2	120.0 s	18.8 KiB
/images/p/03/03_tzi_assets/taz-herz-transparent/665/taz-h...	0.0 ms	18.0 KiB
taz.de/lib/taz-verlag-node/fonts/QuaText-Bold.latin.woff2	120.0 s	17.4 KiB
taz.de/lib/taz-verlag-node/fonts/AktivGrotesk_W_Md.latin.woff2	120.0 s	17.3 KiB
taz.de/lib/taz-verlag-node/fonts/AktivGrotesk_W_Rg.latin.woff2	120.0 s	17.1 KiB
taz.de/lib/taz-verlag-node/fonts/AktivGrotesk_W_Bd.latin.woff2	120.0 s	17.0 KiB
taz.de/lib/taz-verlag-node/fonts/Knile-Regular.latin.woff2	120.0 s	16.5 KiB
taz.de/lib/taz-verlag-node/fonts/AktivGrotesk_W_Bd.latin-ext.woff2	120.0 s	12.3 KiB
taz.de/kommune/files/images/profile/192x192/35.webp	0.0 ms	12.1 KiB
taz.de/kommune/files/images/profile/192x192/2334.webp	0.0 ms	10.4 KiB
taz.de/lib/taz-verlag-node/fonts/knilecondensed-semibold-webfont.latin.woff2	120.0 s	10.5 KiB
taz.de/kommune/files/images/profile/192x192/46.webp	0.0 ms	8.5 KiB
taz.de/kommune/files/images/profile/192x192/42526.webp	0.0 ms	8.3 KiB
taz.de/lib/taz-verlag-node/js/own_functions.js	120.0 s	8.3 KiB
taz.de/kommune/files/images/profile/192x192/131735.webp	0.0 ms	8.1 KiB
taz.de/lib/taz-verlag-node/fonts/fontello-icon-font.woff2	120.0 s	7.7 KiB
taz.de/kommune/files/images/profile/192x192/3.webp	0.0 ms	7.3 KiB
taz.de/lib/taz-verlag-node/js/cash-dom/dist/cash.min.js	120.0 s	7.0 KiB
taz.de/kommune/files/images/profile/192x192/49.webp	0.0 ms	6.0 KiB
taz.de/kommune/files/images/profile/192x192/156.webp	0.0 ms	5.2 KiB
taz.de/lib/taz-verlag-node/js/steffiOtaz_de.WebelementSwitch.js	120.0 s	4.5 KiB
taz.de/lib/taz-verlag-node/icons/podcast_redhov.svg	120.0 s	4.1 KiB
taz.de/lib/taz-verlag-node/js/swiper/swiper-bundle.min.css	120.0 s	3.8 KiB
taz.de/lib/taz-verlag-node/icons/M_taz_Logo-min.svg	120.0 s	3.6 KiB
taz.de/lib/taz-verlag-node/css/photoswipe.css	120.0 s	3.6 KiB
taz.de/lib/taz-verlag-node/icons/menu_suche_redhov.svg	120.0 s	3.6 KiB
taz.de/kommune/files/images/profile/192x192/55500.webp	0.0 ms	3.3 KiB
taz.de/lib/taz-verlag-node/js/shariff/dist/shariff.min.css	120.0 s	3.1 KiB
taz.de/lib/taz-verlag-node/icons/DT_taz_logo-min.svg	120.0 s	3.0 KiB
taz.de/lib/taz-verlag-node/icons/share_redhov.svg	120.0 s	2.7 KiB
taz.de/lib/taz-verlag-node/fonts/Taz-Bold_tazze_private_only.woff	120.0 s	2.6 KiB
taz.de/lib/taz-verlag-node/icons/close_redhov.svg	120.0 s	2.5 KiB
taz.de/lib/taz-verlag-node/icons/mastodon_darkhov.svg	120.0 s	2.3 KiB
taz.de/lib/taz-verlag-node/icons/suche_redhov.svg	120.0 s	2.3 KiB
taz.de/lib/taz-verlag-node/icons/show_more_grey_redhov.svg	120.0 s	1.8 KiB
taz.de/lib/taz-verlag-node/icons/read_more_redhov.svg	120.0 s	1.8 KiB
taz.de/lib/taz-verlag-node/icons/read_more_grey_redhov.svg	120.0 s	1.8 KiB
taz.de/lib/taz-verlag-node/icons/label_redhov.svg	120.0 s	1.7 KiB
taz.de/lib/taz-verlag-node/icons/included_redhov.svg	120.0 s	1.7 KiB
taz.de/lib/taz-verlag-node/icons/arrow_right_white_darkhov.svg	120.0 s	1.7 KiB
taz.de/lib/taz-verlag-node/icons/arrow_right_redhov.svg	120.0 s	1.7 KiB
taz.de/lib/taz-verlag-node/icons/heart_white_redhov.svg	120.0 s	1.6 KiB
taz.de/lib/taz-verlag-node/icons/bluesky_media_kit_logo_darkhov.svg	120.0 s	1.6 KiB
taz.de/picture/8391802/14/40984581.webp	120.0 s	1.1 KiB

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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:41.301 source:map[column:18 line:3 type:source-location url: urlProvider:network]] map[reflowTime:13.551 source:map[column:15 line:13 type:source-location url:https://taz.de/lib/taz-verlag-node/js/own_functions.js urlProvider:network]] map[reflowTime:0.613 source:map[column:34 line:2383 type:source-location url:https://taz.de/ urlProvider:network]]]

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.

	URL	Resource Size	Est Savings
Eine Person steht in einem Trümmerfeld `div > figure.image > picture > img`	taz.de/picture/8391415/665/40964926.webp	87.9 KiB	71.5 KiB
Ein Bild aus Social Media zeigt einen Soldaten, der mit einem Hammer auf eine F… `div > figure.image > picture > img`	taz.de/picture/8391927/665/40976751.webp	81.1 KiB	64.8 KiB
Baustelle mit Kabeln `div > figure.image > picture > img`	taz.de/picture/8391476/665/40984150.webp	79.0 KiB	62.6 KiB
Rekruten der Bundeswehr in einer Kaserne in NRW `div > figure.image > picture > img`	taz.de/picture/8391994/665/40983430.webp	77.1 KiB	60.7 KiB
Eine Pride-Fahne hängt an einem Balkon in Budapest `div > figure.image > picture > img`	taz.de/picture/8392287/665/40983740.webp	74.0 KiB	57.6 KiB
Ein Mitarbeiter richtet in Budapest, Ungarn, eine EU-Flagge neben ungarischen F… `div > figure.image > picture > img`	taz.de/picture/8392281/665/40984134.webp	40.6 KiB	26.8 KiB
Kanzler Merz bei einem Veranstaltung mit Christine Lagarde `div.image-overflow-right > figure.image > picture > img`	taz.de/picture/8391802/665/40984581.webp	21.2 KiB	12.6 KiB
div.is-flex > figure.pr-small > picture.image > img.is-rounded `div.is-flex > figure.pr-small > picture.image > img.is-rounded`	taz.de/kommune/files/images/profile/192x192/35.webp	11.4 KiB	5.4 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:362.28 label:Time to first byte subpart:timeToFirstByte] map[duration:499.826 label:Resource load delay subpart:resourceLoadDelay] map[duration:166.385 label:Resource load duration subpart:resourceLoadDuration] map[duration:1503.368 label:Element render delay subpart:elementRenderDelay]]

lhId: page-6-IMG

nodeLabel: Kanzler Merz bei einem Veranstaltung mit Christine Lagarde

path: 1,HTML,1,BODY,4,DIV,3,MAIN,0,SECTION,0,SECTION,1,ARTICLE,0,A,0,DIV,0,DIV,0,FIGURE,0,PICTURE,4,IMG

selector: div.image-overflow-right > figure.image > picture > img

snippet: <img src="https://taz.de/picture/8391802/665/40984581.webp" alt="Kanzler Merz bei einem Veranstaltung mit Christine Lagarde" height="443" type="image/webp">

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-6-IMG

nodeLabel: Kanzler Merz bei einem Veranstaltung mit Christine Lagarde

path: 1,HTML,1,BODY,4,DIV,3,MAIN,0,SECTION,0,SECTION,1,ARTICLE,0,A,0,DIV,0,DIV,0,FIGURE,0,PICTURE,4,IMG

selector: div.image-overflow-right > figure.image > picture > img

snippet: <img src="https://taz.de/picture/8391802/665/40984581.webp" alt="Kanzler Merz bei einem Veranstaltung mit Christine Lagarde" height="443" type="image/webp">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Protocol
taz.de/	http/1.1
taz.de/lib/taz-verlag-node/fonts/Taz-Bold_tazze_private_only.woff	http/1.1
taz.de/lib/taz-verlag-node/fonts/AktivGrotesk_W_Bd.latin.woff2	http/1.1
taz.de/lib/taz-verlag-node/fonts/AktivGrotesk_W_Rg.latin.woff2	http/1.1
taz.de/lib/taz-verlag-node/fonts/AktivGrotesk_W_Md.latin.woff2	http/1.1
taz.de/lib/taz-verlag-node/fonts/AktivGrotesk_W_It.latin.woff2	http/1.1
taz.de/lib/taz-verlag-node/fonts/fontello-icon-font.woff2	http/1.1
taz.de/lib/taz-verlag-node/icons/heart_white_redhov.svg	http/1.1
taz.de/lib/taz-verlag-node/icons/menu_suche_redhov.svg	http/1.1
taz.de/lib/taz-verlag-node/icons/M_taz_Logo-min.svg	http/1.1
taz.de/lib/taz-verlag-node/icons/DT_taz_logo-min.svg	http/1.1
taz.de/lib/taz-verlag-node/icons/show_more_grey_redhov.svg	http/1.1
taz.de/lib/taz-verlag-node/fonts/QuaText-Bold.latin.woff2	http/1.1
taz.de/lib/taz-verlag-node/fonts/KnileCondensed-Light.woff2	http/1.1
taz.de/lib/taz-verlag-node/icons/read_more_redhov.svg	http/1.1
taz.de/lib/taz-verlag-node/icons/share_redhov.svg	http/1.1
taz.de/lib/taz-verlag-node/fonts/KnileCompressed-Light.woff2	http/1.1
taz.de/lib/taz-verlag-node/fonts/Knile-Regular.latin.woff2	http/1.1
taz.de/lib/taz-verlag-node/fonts/knilecondensed-semibold-webfont.latin.woff2	http/1.1
taz.de/lib/taz-verlag-node/css/styles__news.min.css	http/1.1
taz.de/lib/taz-verlag-node/js/cash-dom/dist/cash.min.js	http/1.1
taz.de/lib/taz-verlag-node/js/steffiOtaz_de.WebelementSwitch.js	http/1.1
taz.de/lib/taz-verlag-node/css/photoswipe.css	http/1.1
taz.de/lib/taz-verlag-node/js/shariff/dist/shariff.min.css	http/1.1
taz.de/picture/8391802/14/40984581.webp	http/1.1
taz.de/lib/taz-verlag-node/js/swiper/swiper-bundle.min.css	http/1.1
taz.de/lib/taz-verlag-node/js/own_functions.js	http/1.1
taz.de/lib/share/js/piwik.js	http/1.1
taz.de/lib/taz-verlag-node/js/alpinejs/dist/module.esm.js	http/1.1
taz.de/picture/8391802/665/40984581.webp	http/1.1
taz.de/lib/taz-verlag-node/icons/arrow_right_redhov.svg	http/1.1
taz.de/lib/taz-verlag-node/icons/label_redhov.svg	http/1.1
taz.de/lib/taz-verlag-node/site.webmanifest	http/1.1
taz.de/lib/taz-verlag-node/js/swiper/swiper-bundle.esm.browser.min.js	http/1.1
taz.de/lib/taz-verlag-node/icons/included_redhov.svg	http/1.1
taz.de/lib/taz-verlag-node/icons/podcast_redhov.svg	http/1.1
taz.de/lib/taz-verlag-node/icons/mastodon_darkhov.svg	http/1.1
taz.de/lib/taz-verlag-node/icons/bluesky_media_kit_logo_darkhov.svg	http/1.1
taz.de/lib/taz-verlag-node/icons/instagram_white_darkhov.svg	http/1.1
taz.de/lib/taz-verlag-node/icons/arrow_right_white_darkhov.svg	http/1.1
taz.de/lib/taz-verlag-node/fonts/AktivGrotesk_W_Bd.latin-ext.woff2	http/1.1
taz.de/lib/taz-verlag-node/icons/read_more_grey_redhov.svg	http/1.1
taz.de/kommune/files/images/profile/192x192/46.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/35.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/122313.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/131735.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/55500.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/156.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/22739.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/49.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/400803.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/400802.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/3.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/59169.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/2334.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/42526.webp	http/1.1
taz.de/lib/taz-verlag-node/icons/suche_redhov.svg	http/1.1
taz.de/lib/taz-verlag-node/icons/close_redhov.svg	http/1.1
taz.de/!v=8b0790d4-53b5-43ba-9e14-e827d7f07de7/c.xml	http/1.1
/stats/piwik.php?action_name=p4608%3A%20taz.de&idsite=1&r...	http/1.1
taz.de/kommune/files/images/profile/192x192/122313.png	http/1.1
taz.de/picture/8392287/665/40983740.webp	http/1.1
taz.de/picture/8392281/665/40984134.webp	http/1.1
/images/p/03/03_tzi_assets/taz-herz-transparent/665/taz-h...	http/1.1
taz.de/picture/8391415/665/40964926.webp	http/1.1
taz.de/picture/8391927/665/40976751.webp	http/1.1
taz.de/picture/8391994/665/40983430.webp	http/1.1
taz.de/picture/8391476/665/40984150.webp	http/1.1
taz.de/kommune/files/images/profile/192x192/22739.png	http/1.1
taz.de/kommune/files/images/profile/192x192/400803.png	http/1.1
taz.de/kommune/files/images/profile/192x192/400802.png	http/1.1
taz.de/kommune/files/images/profile/192x192/59169.png	http/1.1
taz.de/lib/taz-verlag-node/favicon-32x32.png	http/1.1
/stats/piwik.php?e_c=TZI&e_a=layer&e_n=displayed&ca=1&ids...	http/1.1
/stats/piwik.php?e_c=TZI&e_a=displayed&e_n=TZI_LASCHE_202...	http/1.1

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

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.

URL	Transfer Size	Duration
taz.de/lib/taz-verlag-node/js/steffiOtaz_de.WebelementSwitch.js	4.5 KiB	466 ms
taz.de/lib/taz-verlag-node/js/cash-dom/dist/cash.min.js	7.0 KiB	466 ms
data-502d5cce76.taz.de/iomm/latest/bootstrap/stub.js	805 B	997 ms
taz.de/lib/taz-verlag-node/css/styles__news.min.css	33.7 KiB	1.6 s
taz.de/lib/taz-verlag-node/js/shariff/dist/shariff.min.css	3.1 KiB	695 ms
taz.de/lib/taz-verlag-node/css/photoswipe.css	3.6 KiB	695 ms

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

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

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 9.1 KiB

URL	Transfer Size	Est Savings
taz.de/lib/taz-verlag-node/js/alpinejs/dist/module.esm.js	24.3 KiB	5.7 KiB
taz.de/lib/taz-verlag-node/js/own_functions.js	7.5 KiB	3.4 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.

Estimated savings: 230 ms 27.5 KiB

URL	Transfer Size	Est Savings
taz.de/lib/taz-verlag-node/css/styles__news.min.css	32.8 KiB	27.5 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 800 ms 130.5 KiB

URL	Transfer Size	Est Savings
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...	187.4 KiB	107.3 KiB
taz.de/lib/taz-verlag-node/js/swiper/swiper-bundle.esm.browser.min.js	39.6 KiB	23.2 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
taz.de/lib/taz-verlag-node/js/alpinejs/dist/module.esm.js	887 ms	662 ms	0.9 ms
Unattributable	683 ms	33 ms	0.0 ms
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...	646 ms	497 ms	76 ms
taz.de/	608 ms	109 ms	20 ms
cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js	494 ms	422 ms	18 ms
taz.de/lib/taz-verlag-node/js/swiper/swiper-bundle.esm.browser.min.js	189 ms	95 ms	1.2 ms
taz.de/lib/taz-verlag-node/js/own_functions.js	146 ms	23 ms	3.6 ms
securepubads.g.doubleclick.net/tag/js/gpt.js	107 ms	92 ms	13 ms
cdn.privacy-mgmt.com/unified/4.40.1/gdpr-tcf.27718c8cb9d29947d2c1.bundle.js	73 ms	54 ms	19 ms
taz.de/lib/taz-verlag-node/js/cash-dom/dist/cash.min.js	59 ms	44 ms	3.2 ms
data-502d5cce76.taz.de/iomm/latest/manager/base/es6/bundle.js	57 ms	40 ms	8.1 ms
taz.de/lib/share/js/piwik.js	53 ms	36 ms	7.5 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.

Category	Time Spent
Script Evaluation	2.2 s
Other	820 ms
Style & Layout	642 ms
Script Parsing & Compilation	180 ms
Parse HTML & CSS	164 ms
Rendering	97 ms
Garbage Collection	18 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 reason	Failure type
Pages with cache-control:no-store header cannot enter back/forward cache.	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

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.


karikatur `section.outerwrapper > section.module > div.column > img.full`

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

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Font display

●Optimize viewport for mobile

●Minify CSS

●Avoids enormous network payloads Total size was 1,439 KiB

●Avoid long main-thread tasks 12 long tasks found

●Network Requests

●Network Round Trip Times 80 ms

●Server Backend Latencies 350 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Initial server response time was short Root document took 90 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○User Timing marks and measures

○Avoid non-composited animations

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.

ARIA

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
ungarn Urteil zu LGBTIQ+-Rechten in Ungarn Die Menschenwürde gilt Der Europäis… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
libanon-krieg Israelische Armee zerstört Jesus-Statue Wenn ein Stück Holz mehr … `div.container > main#hauptinhalt > section.outerwrapper > section.module`
ausgezeichnete taz Preisgekrönte Texte von taz-Autor:innen Sexualisierte Gewa… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
themen des tages „Allenfalls noch Basisabsicherung“ Merz bringt mit Renten-Äuße… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
iran-krieg Feuerpause im Irankrieg Vor der nächsten Kriegsrunde? Zunächst bis … `div.container > main#hauptinhalt > section.outerwrapper > section.module`
40 jahre tschornobyl Am 26. April 1986 kam es zum Super-GAU in der Sowjetunion… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
meistgelesen 1 Der Kanzler attackiert die SPD Die Methode Merz Kommentar von St… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
reportage und recherche Neonazis organisieren Volkstanzgruppen Die Ringelreihen… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
empfehlungen der redaktion Hausangestellte in Hongkong Im Schatten der Katastro… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
debatte Waffenexporte in Japan Vertane Chance Kommentar von Martin Fritz Japan… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
karikatur `div.container > main#hauptinhalt > section.outerwrapper > section.module`
politik AfD-Streit um Außenpolitik eskaliert Fraktionsvorstand ruft Putins Cell… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
öko Klimaklage in den Niederlanden Jedes neue Ölfeld zählt Nächste Runde im Re… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
gesellschaft Eva Michelmann Journalistin offenbar in syrischer Isolationshaft … `div.container > main#hauptinhalt > section.outerwrapper > section.module`
podcast Nach den Wahlen in Baden-Württemberg Alles gleich, alles anders? Podca… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
kultur Im Regen am Maybachufer High und heiser Ohne Stimme auf dem Flohmarkt v… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
berlin Rechte Gewalt nimmt zu Mehr Übergriffe gegen Minderjährige und Geflüchte… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
nord Massenunterkünfte wieder erlaubt Zwei Schritte zurück bei Behindertenrecht… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
sport Preisexplosion bei der Fußball-WM Wucher mit Weltmeisterschaft Kolumne Am… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
die wahrheit Die Wahrheit Teurer als die Polizei erlaubt NRW kommt nicht zur R… `div.container > main#hauptinhalt > section.outerwrapper > section.module`
streifen der wahrheit 21.04.2026 Shuffle TOM und mehr Tom im taz shop `div.container > main#hauptinhalt > section.outerwrapper > section.module`
Die Abo-Abteilung der taz sucht eine:n Marketingmanager:in Leads & Subscriptio… `div.container > main#hauptinhalt > section.outerwrapper > section.module`

Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
 taz zahl ich taz zahl ich themen politik öko gesellschaft kultur sport berli… `body#body > div.header-nav-wing > nav.header-nav-wing-inner`
Autonome Region Kurdistan Abwarten in Erbil Die Feuerpause zwischen Iran und d… `section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-74d55710e67cc58d0 > article.column`
Landratswahl in Brandenburg Der Rechte oder die Anti-Populistin Bei der Landra… `section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-74d55710e67cc58d0 > article.column`
Bremer V-Mann-Skandal Das Misstrauen wächst Eigentlich hat Bremen den Ruf eine… `section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-74d55710e67cc58d0 > article.column`
Theater in Georgien Die Kunst des Widerstandes Die prorussische Regierung Geor… `section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-74d55710e67cc58d0 > article.column`
Fußball-WM in Mexiko Und die Fans singen neben verscharrten Leichen Im Juni ko… `section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-74d55710e67cc58d0 > article.column`
Sexualisierte Gewalt Lässt sich mit Tätern reden? Gegen ihren Willen wurde uns… `section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-74d55710e67cc58d0 > article.column`
OB-Wahl in Schwerin Eine muss es ja tun Schwerin ist pleite, die AfD stark. Am… `section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-74d55710e67cc58d0 > article.column`
Denker*innen zur Krise der Demokratie Ist die liberale Demokratie noch zu re… `section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-74d55710e67cc58d0 > article.column`

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.image-overflow-right > figure.image > picture > img `div.image-overflow-right > figure.image > picture > img`

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.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Werden Sie Unterstützer:in! Ihnen liegt die taz am Herzen? Dann hätten wir ei… `section.outerwrapper > section.module > article.column > a.columns`
HEUTE: taz Talk zu Journalismus Der Blick über den Tellerrand Wer Europa verst… `section.outerwrapper > section.module > article.column > a.headline`
10 Wochen wochentaz + Linke Socken Life socks! Zusammen mit der Künstlerin Mo… `section.outerwrapper > section.module > article.column > a.columns`
Reinhard Loske gratuliert Michael Succow Als Oberbarnim zum Herzen des Umwelts… `section.outerwrapper > section.module > article.column > a.headline`
10 Wochen wochentaz + Linke Socken Life socks! Zusammen mit der Künstlerin Mo… `section.outerwrapper > section.module > article.column > a.columns`
KONTEXT über Musikduo LISÆ Pop zwischen Wut und Zärtlichkeit Das Tübinger Duo … `section.outerwrapper > section.module > article.column > a.headline`
Tickets für den taz-Kongress 2026 Endlich mal Tacheles reden Das taz lab 2026… `section.outerwrapper > section.module > article.column > a.columns`
Feminismus mit Vorsatz Podcast Und welcher Erzählung glaubst du? Gendern oder … `section.outerwrapper > section.module > article.column > a.headline`
Lesestück Zu viert? Nein – fünf Bremer Stadtmusikanten Was, wenn die Gebrüder … `section.outerwrapper > section.module > article.column > a.headline`
taz FUTURZWEI im Abo Unser Magazin für eine bessere Zukunft Jährlich vier Aus… `section.outerwrapper > section.module > article.column > a.columns`
Polen (Warschau – Zamość – Krakau) Zwiebeldächer und heimliche Hauptstädte Das… `section.outerwrapper > section.module > article.column > a.headline`
Die Abo-Abteilung der taz sucht eine:n Marketingmanager:in Leads & Subscriptio… `section.outerwrapper > section.module > article.column > a.columns`

○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

●`[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

●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 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

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Uses ARIA roles only on compatible elements

●Identical links have the same purpose.

○`[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 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

○Form elements have associated labels

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○No element has a `[tabindex]` value greater than 0

○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.

○Image elements do not have `[alt]` attributes that are redundant text.

○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.

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.

Source	Description
taz.de/kommune/files/images/profile/192x192/122313.webp	`Failed to load resource: the server responded with a status of 404 (Not Found)`
taz.de/kommune/files/images/profile/192x192/22739.webp	`Failed to load resource: the server responded with a status of 404 (Not Found)`
taz.de/kommune/files/images/profile/192x192/400803.webp	`Failed to load resource: the server responded with a status of 404 (Not Found)`
taz.de/kommune/files/images/profile/192x192/400802.webp	`Failed to load resource: the server responded with a status of 404 (Not Found)`
taz.de/kommune/files/images/profile/192x192/59169.webp	`Failed to load resource: the server responded with a status of 404 (Not Found)`
taz.de/kommune/files/images/profile/192x192/122313.png	`Failed to load resource: the server responded with a status of 404 (Not Found)`
taz.de/kommune/files/images/profile/192x192/22739.png	`Failed to load resource: the server responded with a status of 404 (Not Found)`
taz.de/kommune/files/images/profile/192x192/400803.png	`Failed to load resource: the server responded with a status of 404 (Not Found)`
taz.de/kommune/files/images/profile/192x192/400802.png	`Failed to load resource: the server responded with a status of 404 (Not Found)`
taz.de/kommune/files/images/profile/192x192/59169.png	`Failed to load resource: the server responded with a status of 404 (Not Found)`

●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

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

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.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Einwilligungen widerrufen (Ads) `div.columns > div.column > div.typo-linklist > a.pr-xsmall`

If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn more about robots.txt.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Line #	Content	Error
12	`UserAgent: Bytespider`	`Unknown directive`

To appear in search results, crawlers need access to your app.

Content Best Practices

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.image-overflow-right > figure.image > picture > img `div.image-overflow-right > figure.image > picture > img`

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

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`