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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.

37

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.

RequestCache TTLTransfer Size
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/1a85bf267f39ae5...0.0 ms3.1 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/cb2c252cb43a174...0.0 ms2.6 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/cd2c7a3d0671bef...0.0 ms2.5 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/fa2c6d559cb6b0b...0.0 ms2.5 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/6cad0c21eaff897...0.0 ms2.4 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/ba43b0b0f621080...0.0 ms2.3 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/a4f4a37614c998e...0.0 ms2.3 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/ad28d3c6b83b50b...0.0 ms2.2 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/74e3b10f6fc3826...0.0 ms2.1 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/ca17d4e1bf4787e...0.0 ms2.0 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/f9db5f7750a0fa9...0.0 ms1.8 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/3ee00650a6a62ce...0.0 ms1.1 MiB
videoplayer.chip.de/p/player/latest/index.js3600.0 s108.9 KiB
cmp.chip.de/Notice.8f529.js3600.0 s91.3 KiB
content.chip.de/assets/js/output.min.js?78900.0 ms50.2 KiB
a.bf-ad.net/adengine/chip/chunk-prepareEngine-0FG0hqqH.js900.0 s47.4 KiB
cmp.chip.de/unified/wrapperMessagingWithoutDetection.js3600.0 s40.4 KiB
cdn.greenvideo.io/carousel/gfc.js3600.0 s40.4 KiB
cp.chip.de/now.js600.0 s35.2 KiB
assets.sp.chip.de/3.1.2/emitter.js0.0 ms22.7 KiB
tags.chip.de/chip-web/prod/utag.js300.0 s23.4 KiB
app.varify.io/varify.js120.0 s21.1 KiB
a.bf-tools.net/de/de.js900.0 s16.4 KiB
www.chip.de/ctf/assets/renderer/static/entries/entry-server-routing.Bie660r6.js48088.0 s25.1 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-tR5rx4pq.js2202355.0 s128.6 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-Czc2-zny.js47777.0 s21.2 KiB
www.chip.de/ctf/chip/gif/animation-chip-30.gif900.0 s7.1 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-skVBKiFE.js2445909.0 s63.5 KiB
cmp.chip.de/Notice.30929.css3600.0 s6.7 KiB
content.chip.de/assets/css/global.css?32750.0 ms3.5 KiB
www.chip.de/161/126913415/car.svg0.0 ms3.4 KiB
www.chip.de/161/126913415/tvStreaming3.svg0.0 ms2.9 KiB
www.chip.de/161/126913415/wifi.svg0.0 ms2.6 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-B3Mp7GRZ.js47800.0 s4.9 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-DLuQbV9L.js48175.0 s4.2 KiB
www.chip.de/161/126913415/bu-community.svg0.0 ms1.9 KiB
cmp.chip.de/polyfills.01516.js3600.0 s2.3 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-BTtQs8dT.js2445909.0 s18.0 KiB
cdn.greenvideo.io/carousel/gfc.css3600.0 s2.0 KiB
www.chip.de/161/126910217/symbol-marktcheck.svg0.0 ms1.5 KiB
www.chip.de/161/126910217/service-praxistipps.svg0.0 ms1.5 KiB
www.chip.de/161/126910217/indicator-thumb.svg0.0 ms1.4 KiB
www.chip.de/161/126910217/indicator-check.svg0.0 ms1.4 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-BvZM_2Xy.js2445909.0 s13.4 KiB
www.chip.de/161/126910217/bu-download.svg0.0 ms1.2 KiB
www.chip.de/ctf/assets/renderer/static/static/style-1bdd5eba.BZ1sblvI.css2460244.0 s12.0 KiB
www.chip.de/161/126913415/bu-mobile.svg0.0 ms1.1 KiB
/ctf/assets/renderer/static/static/Asap-Regular-CUDCJUWJ....1426444.0 s10.6 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-CZd_sdLs.js2457453.0 s9.8 KiB
www.chip.de/161/126913415/essenTrinken.svg0.0 ms942 B
www.chip.de/161/126913415/PCTabletNotebook__1_.svg0.0 ms827 B
www.chip.de/161/126910217/bu-news.svg0.0 ms818 B
a.bf-ad.net/adengine/chip/adengine.js900.0 s839 B
www.chip.de/161/126913415/cta-home.svg0.0 ms727 B
www.chip.de/161/126913415/download.svg0.0 ms698 B
www.chip.de/ctf/assets/renderer/static/chunks/chunk-Bl1SenX_.js2460244.0 s6.9 KiB
www.chip.de/ctf/assets/renderer/static/static/style-d38fdbc5.PzO7Rsax.css2445909.0 s6.3 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-ZCKjJNhG.js2488805.0 s5.3 KiB
/chip-web/prod/utag.v.js?a=burdaforward/chip-web/20260421...300.0 s512 B
www.chip.de/ctf/assets/renderer/static/chunks/chunk-DX4R9uMS.js2462419.0 s4.1 KiB
benelph.de/160x600/bcf03e09472214097c1a.png0.0 ms365 B
www.chip.de/ctf/assets/renderer/static/chunks/chunk-B7GfliJv.js2445910.0 s3.6 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-BUhBqdkH.js2445910.0 s3.2 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-jmQ44GYe.js2460244.0 s2.7 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-CNdpWL3I.js2462419.0 s2.4 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-DrA6OFd8.js2445910.0 s2.3 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-DPMy6rK_.js2445909.0 s1.6 KiB
www.chip.de/ctf/assets/renderer/static/static/style-b2ff4faf.CKZUDsNY.css2430899.0 s1.6 KiB
www.chip.de/ctf/assets/renderer/static/static/style-8633c586.CXEy_MRv.css2445909.0 s1.6 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-Dk2iiM_h.js1880064.0 s1.4 KiB
/ctf/assets/renderer/static/entries/src_frontend_pages_ge...2445909.0 s1.5 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-Bkkr2a1n.js2194656.0 s1.3 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-gX0guKOe.js2445910.0 s1.3 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-JW-uahJG.js2445909.0 s1.2 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-DYqd6UPo.js2178011.0 s1.1 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-B4-KtAjW.js2445909.0 s1.0 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-wJKqGZT5.js2462419.0 s1.0 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-CVTGeuPq.js2457453.0 s962 B
www.chip.de/ctf/assets/renderer/static/chunks/chunk-BgqUAeD2.js2108159.0 s893 B
www.chip.de/ctf/assets/renderer/static/static/style-e58ce4d9.B0D25ROH.css2445909.0 s644 B
www.chip.de/ctf/assets/renderer/static/static/style-62918d9a.Dr12QuLX.css2445909.0 s629 B
www.chip.de/ctf/assets/renderer/static/chunks/chunk-0W20mzpf.js2445909.0 s461 B
www.chip.de/ctf/assets/renderer/static/static/style-d850852c.tn0RQdqM.css2445909.0 s365 B
cmp.chip.de/Notice.8f529.js3600.0 s0 B
cmp.chip.de/Notice.30929.css3600.0 s0 B
cmp.chip.de/polyfills.01516.js3600.0 s0 B

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:26.129 source:map[column:102 line:6116 type:source-location url:https://www.chip.de/ urlProvider:network]] map[reflowTime:23.689 source:map[type:text value:[unattributed]]]]

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: div.TeaserTop__Main > article.Teaser--XL > figure.ar-16-9 > img.Lazy
path: 1,HTML,1,BODY,10,DIV,0,DIV,0,MAIN,1,SECTION,0,DIV,1,DIV,0,ARTICLE,0,FIGURE,0,IMG
selector: div.TeaserTop__Main > article.Teaser--XL > figure.ar-16-9 > img.Lazy
snippet: <img class="Lazy loaded" src="https://quadro.burda-forward.de/ctf/98d1bf36-cdf0-4823-a7d7-e1f4793ffd5d.2…" data-src="https://quadro.burda-forward.de/ctf/98d1bf36-cdf0-4823-a7d7-e1f4793ffd5d.2…" alt="" width="620" height="349" data-was-processed="true">

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

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
www.chip.de/ctf/assets/renderer/static/static/style-e58ce4d9.B0D25ROH.css644 B
www.chip.de/ctf/assets/renderer/static/static/style-b2ff4faf.CKZUDsNY.css1.6 KiB150 ms
www.chip.de/ctf/assets/renderer/static/static/style-8633c586.CXEy_MRv.css1.6 KiB
www.chip.de/ctf/assets/renderer/static/static/style-62918d9a.Dr12QuLX.css629 B
www.chip.de/ctf/assets/renderer/static/static/style-1bdd5eba.BZ1sblvI.css12.0 KiB300 ms
www.chip.de/ctf/assets/renderer/static/static/style-d850852c.tn0RQdqM.css365 B
www.chip.de/ctf/assets/renderer/static/static/style-d38fdbc5.PzO7Rsax.css6.3 KiB

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
div.TeaserTop__Main > article.Teaser--XL > figure.ar-16-9 > img.Lazy div.TeaserTop__Main > article.Teaser--XL > figure.ar-16-9 > img.Lazy
/ctf/98d1bf36-cdf0-4823-a7d7-e1f4793ffd5d.2651654d-9470-4...23.2 KiB15.0 KiB
div.TeaserTop__Secondary > article.Teaser--L > figure.ar-16-9 > img.Lazy div.TeaserTop__Secondary > article.Teaser--L > figure.ar-16-9 > img.Lazy
/ctf/9ea670ea-83ad-4435-b949-d3bb8fc607bf.4c41ad7a-c142-4...22.6 KiB14.6 KiB
30 Years div.Header-Container > div.Header-Logo-Container > a > img.Header-Gif
www.chip.de/ctf/chip/gif/animation-chip-30.gif6.8 KiB5.1 KiB
div.TeaserTop__Secondary > article.Teaser--L > figure.ar-16-9 > img.Lazy div.TeaserTop__Secondary > article.Teaser--L > figure.ar-16-9 > img.Lazy
/ctf/ca827254-8795-4139-bdff-4d34692d8838.00b198d9-c91d-4...7.7 KiB5.0 KiB

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.

URLProtocol
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/50d4419e0d62d00...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/f9db5f7750a0fa9...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/ad28d3c6b83b50b...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/a5e9d7da8867653...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/168e891578ae2a3...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/e8aa2cd64b48ca5...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/ba43b0b0f621080...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/a15b1f64f344dda...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/fdfe65fc4e45448...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/090c740150ff18f...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/fa2c6d559cb6b0b...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/d7ba11fbc997a52...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/3ee00650a6a62ce...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/2f1b28c0cadc571...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/d95a552de66ac00...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/6cad0c21eaff897...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/1313e82a90bec0c...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/1a85bf267f39ae5...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/74e3b10f6fc3826...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/fa41046066ea9c3...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/ff810d1865df36a...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/2039c5308e861ee...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/ca17d4e1bf4787e...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/f0c8d412d5b8da1...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/b60b7a5f790aff1...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/cb2c252cb43a174...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/8ca6cc64b15a6a0...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/caa32140d583d10...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/9b42e8c5424effe...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/09a14639672e43b...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/3eb83c9ecbfde6f...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/cd2c7a3d0671bef...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/a4f4a37614c998e...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/d42401c2f4f506e...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/f4d9db52ed27e57...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/b72107f7a565128...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/f73912b2f7f5e02...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/82e4fb66400bd20...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/62a5b311d029972...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/c0f8c5c281af7e7...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/c7a6ff2d0126b8a...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/eabd05f8d923025...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/7f83e06ce9e2d7f...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/8d4806172e87796...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/fc06d77e1f50dd2...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/141ba01be49a437...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/2e6e116cf242cd8...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/16b845ce09c592d...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/95f112c556159d4...http/1.1
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/7021cb7165d9038...http/1.1

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: 758 ms
URLTime Spent
chip.de/758 ms
www.chip.de/0.0 ms

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

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: 0.0 ms 34.0 KiB
URLTransfer SizeEst Savings
www.chip.de/static/assets/chip-pages/homepage/homepage-v6.2.13.css?173114.4 KiB12.3 KiB
www.chip.de/ctf/assets/renderer/static/static/style-1bdd5eba.BZ1sblvI.css11.5 KiB11.3 KiB
:root{--breakpoint-mobile:999px;--breakpoint-desktop:1000px;--content-width-mobile:100%; … } …12.0 KiB10.4 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: 900 ms 301.0 KiB
URLTransfer SizeEst Savings
cmp.chip.de/Notice.8f529.js90.9 KiB61.4 KiB
cmp.chip.de/Notice.8f529.js90.9 KiB61.4 KiB
www.chip.de/ctf/assets/renderer/static/chunks/chunk-skVBKiFE.js59.3 KiB34.2 KiB
content.chip.de/assets/js/output.min.js?789050.1 KiB34.2 KiB
a.bf-ad.net/adengine/chip/chunk-prepareEngine-0FG0hqqH.js47.0 KiB32.6 KiB
cmp.chip.de/unified/wrapperMessagingWithoutDetection.js40.0 KiB27.3 KiB
cp.chip.de/now.js34.7 KiB25.7 KiB
www.chip.de/26.7 KiB24.3 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
cmp.chip.de/Notice.8f529.js2.0 s1.5 s59 ms
Unattributable2.0 s355 ms0.0 ms
www.chip.de/1.6 s135 ms43 ms
cdn.greenvideo.io/carousel/gfc.js610 ms448 ms13 ms
cmp.chip.de/unified/wrapperMessagingWithoutDetection.js349 ms186 ms30 ms
www.chip.de/ctf/assets/renderer/static/chunks/chunk-CZd_sdLs.js145 ms103 ms0.2 ms
tags.chip.de/chip-web/prod/utag.js130 ms114 ms8.9 ms
www.chip.de/static/assets/chip-pages/homepage/homepage-v6.2.13.js?8291102 ms49 ms5.7 ms
cp.chip.de/now.js86 ms57 ms28 ms
cmp.chip.de/unified/4.40.1/gdpr-tcf.27718c8cb9d29947d2c1.bundle.js76 ms56 ms18 ms
app.varify.io/varify.js57 ms46 ms6.0 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 Evaluation3.1 s
Other2.0 s
Style & Layout1.2 s
Parse HTML & CSS515 ms
Rendering294 ms
Script Parsing & Compilation248 ms
Garbage Collection76 ms

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
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/1a85bf267f39ae5...3.1 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/cb2c252cb43a174...2.6 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/cd2c7a3d0671bef...2.5 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/fa2c6d559cb6b0b...2.5 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/6cad0c21eaff897...2.4 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/ba43b0b0f621080...2.3 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/a4f4a37614c998e...2.3 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/ad28d3c6b83b50b...2.2 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/74e3b10f6fc3826...2.1 MiB
/f6876ff40f5a74303c2b874c26eeb219bb08a0e6/ca17d4e1bf4787e...2.0 MiB

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.

URL
30 Years div.Header-Container > div.Header-Logo-Container > a > img.Header-Gif
www.chip.de/ctf/chip/gif/animation-chip-30.gif

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

●Layout shift culprits
●Optimize DOM size
●Font display
●LCP breakdown
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●Avoid long main-thread tasks 20 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 30 ms
●Server Backend Latencies 70 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 40 ms
●Avoid large layout shifts 2 layout shifts found
○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.

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
body.is-smartphone > div#sp_message_container_1438811 > iframe#sp_message_iframe_1438811 body.is-smartphone > div#sp_message_container_1438811 > iframe#sp_message_iframe_1438811

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.

○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.
●`button`, `link`, and `menuitem` elements have accessible names
●ARIA attributes are used as specified for the element's role
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[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 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.
●Heading elements appear in a sequentially-descending order
●Skip links are focusable.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●ARIA IDs are unique
●Uses ARIA roles only on compatible elements
●Identical links have the same purpose.
○`[accesskey]` values are unique
○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
○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
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○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.
○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.
100

Best Practices

●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 browser errors logged to the console
●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 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
92

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
Alle anzeigen section#hp-lichtgruen > div.Themenwelten > div.Themenwelten__Item > a.secondary

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

○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
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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