Lighthouse Desktop
· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.Detailed Report
Audit breakdown by category with detailed findings.
Performance
Insights
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Performance issues directly impact user engagement and conversion rates.
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling
Performance issues directly impact user engagement and conversion rates.
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
Performance issues directly impact user engagement and conversion rates.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.
Performance issues directly impact user engagement and conversion rates.
Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
Performance issues directly impact user engagement and conversion rates.
Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Duration |
|---|---|---|
| taz.de/lib/taz-verlag-node/js/steffiOtaz_de.WebelementSwitch.js | 4.5 KiB | 361 ms |
| taz.de/lib/taz-verlag-node/js/cash-dom/dist/cash.min.js | 7.0 KiB | 361 ms |
| data-502d5cce76.taz.de/iomm/latest/bootstrap/stub.js | 805 B | 462 ms |
| taz.de/lib/taz-verlag-node/css/styles__news.min.css | 33.7 KiB | 127 ms |
| taz.de/lib/taz-verlag-node/css/photoswipe.css | 3.6 KiB | 361 ms |
| taz.de/lib/taz-verlag-node/js/shariff/dist/shariff.min.css | 3.1 KiB | 361 ms |
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
Viele Fussballfans in einem Stadion div.image-overflow-right > figure.image > picture > img | taz.de/picture/7598442/665/Fussball-Gewalt-Uebergriffe-1.webp | 146.6 KiB | 98.7 KiB |
Eine Person steht in einem Trümmerfeld div > figure.image > picture > img | taz.de/picture/8391415/665/40964926.webp | 87.9 KiB | 62.8 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 | 56.1 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 | 49.0 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 | 19.4 KiB |
Helfer bespritzen den Buckelwal mit Wasser div > figure.image > picture > img | taz.de/picture/8391466/310/40983045.webp | 29.7 KiB | 19.3 KiB |
Kanzler Merz bei einer Rede div > figure.image > picture > img | taz.de/picture/8392182/310/40979426.webp | 29.3 KiB | 18.9 KiB |
Cover des Albums „Berlin lebt“ von Capital Bra div > figure.image > picture > img | taz.de/picture/8391929/310/106102757.webp | 23.8 KiB | 13.5 KiB |
Ein Panzer und Soldaten des japanischen Militärs div > figure.image > picture > img | taz.de/picture/8391915/310/40940942.webp | 22.7 KiB | 12.3 KiB |
Till Backhaus (SPD), Umweltminister von Mecklenburg-Vorpommern, posiert am Wism… div > figure.image > picture > img | taz.de/picture/8391741/310/40971985.webp | 22.6 KiB | 12.1 KiB |
Werbegrafik für ein Probeabo der wochentaz: Oben steht groß in roten Blockbuchs… div.pic-column > figure.image > picture > img | /images/p/ta/taz_lies_selbst_abokacheln_3zu2_3/480/taz_li... | 36.7 KiB | 11.7 KiB |
Baustelle mit Kabeln div > figure.image > picture > img | taz.de/picture/8391476/310/40984150.webp | 20.8 KiB | 10.4 KiB |
Rekruten der Bundeswehr in einer Kaserne in NRW div > figure.image > picture > img | taz.de/picture/8391994/310/40983430.webp | 19.3 KiB | 8.9 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 |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Performance issues directly impact user engagement and conversion rates.
Diagnostics
Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure type |
|---|---|
| Pages 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 |
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| taz.de/lib/taz-verlag-node/css/styles__news.min.css | 32.8 KiB | 27.3 KiB |
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /pagead/managed/js/gpt/m202604160201/pubads_impl.js | 187.7 KiB | 106.3 KiB |
| taz.de/lib/taz-verlag-node/js/swiper/swiper-bundle.esm.browser.min.js | 39.6 KiB | 23.0 KiB |
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
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.
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.
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 taz Kantine sucht eine:n
Köch:in/Koch
Lust auf gesundes, kreatives, nachh… 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.
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 |
Weltrekord-Achterbahn in Saudi-Arabien
Im freien Fall
Die Falcon’s Flight in S… section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-a4ea7f772cacd46c > article.column |
Autonome Region Kurdistan
Abwarten in Erbil
Die Feuerpause zwischen Iran und d… section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-a4ea7f772cacd46c > article.column |
Landratswahl in Brandenburg
Der Rechte oder die Anti-Populistin
Bei der Landra… section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-a4ea7f772cacd46c > article.column |
Bremer V-Mann-Skandal
Das Misstrauen wächst
Eigentlich hat Bremen den Ruf eine… section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-a4ea7f772cacd46c > article.column |
Theater in Georgien
Die Kunst des Widerstandes
Die prorussische Regierung Geor… section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-a4ea7f772cacd46c > article.column |
Fußball-WM in Mexiko
Und die Fans singen neben verscharrten Leichen
Im Juni ko… section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-a4ea7f772cacd46c > article.column |
Sexualisierte Gewalt
Lässt sich mit Tätern reden?
Gegen ihren Willen wurde uns… section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-a4ea7f772cacd46c > 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-a4ea7f772cacd46c > article.column |
Denker*innen zur Krise der Demokratie
Ist die liberale Demokratie noch zu re… section.module > div.swiper-mainkicyyube1 > div#swiper-wrapper-a4ea7f772cacd46c > 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.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
taz zahl ich
taz zahl ich nav.portal-and-second-level-wrapper > div.is-hidden-mobile > p.full > a.button |
10 Ausgaben für 10 Euro
Die Wochenzeitung mit taz-Blick
Wir schauen den Super… 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 Ausgaben für 10 Euro
Die Wochenzeitung mit taz-Blick
Unsere wochentaz biet… 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 |
taz FUTURZWEI im Abo entdecken
Endlich mal ein Magazin für Zukunft
taz FUTURZ… 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 |
10 Wochen wochentaz + Linke Socken
Life socks!
Zusammen mit der Künstlerin Mo… 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 taz Kantine sucht eine:n
Köch:in/Koch
Lust auf gesundes, kreatives, nachh… section.outerwrapper > section.module > article.column > a.columns |
Best Practices
General
Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
Failed to load resource: the server responded with a status of 404 (Not Found) | |
Failed to load resource: the server responded with a status of 404 (Not Found) | |
Failed to load resource: the server responded with a status of 404 (Not Found) | |
Failed to load resource: the server responded with a status of 404 (Not Found) | |
Failed to load resource: the server responded with a status of 404 (Not Found) | |
Failed to load resource: the server responded with a status of 404 (Not Found) | |
Failed to load resource: the server responded with a status of 404 (Not Found) | |
Failed to load resource: the server responded with a status of 404 (Not Found) | |
Failed to load resource: the server responded with a status of 404 (Not Found) | |
Failed to load resource: the server responded with a status of 404 (Not Found) |
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
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.
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.
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.