Skip to content
https://mdr.de

Lighthouse Desktop

· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
SCORE
0
GRADE
FIX
0
REVIEW
0
PASS
0
INFO
0

Detailed Report

Audit breakdown by category with detailed findings.

77

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
www.mdr.de/resources/4.11.3/main.js?version=256001749.0 s335.0 KiB
/resources/global/ardplayer/release-7.3.0/ardplayer-mdr-7...2071.0 s253.4 KiB
www.mdr.de/resources/4.11.3/701.chunk.js2520.0 s120.3 KiB
www.mdr.de/resources/4.11.3/main.css?version=279472035.0 s78.1 KiB
www.mdr.de/resources/4.11.3/667.chunk.js1046.0 s43.7 KiB
/resources/global/ardplayer/release-7.3.0/ardplayer-mdr-7...2108.0 s36.1 KiB
www.mdr.de/resources/global/fonts/rebrush/openSans/open-sans-600italic.woff299964.0 s58.4 KiB
www.mdr.de/resources/global/fonts/rebrush/openSans/open-sans-italic.woff299964.0 s58.2 KiB
www.mdr.de/resources/global/fonts/rebrush/openSans/open-sans-700italic.woff299964.0 s55.8 KiB
www.mdr.de/resources/global/fonts/rebrush/openSans/open-sans-regular.woff299964.0 s55.4 KiB
www.mdr.de/resources/global/fonts/rebrush/openSans/open-sans-600.woff299964.0 s55.3 KiB
www.mdr.de/resources/global/fonts/rebrush/openSans/open-sans-700.woff299964.0 s53.5 KiB
www.mdr.de/resources/global/js/Vendor/piano/piano-analytics-6.10.0.js1969.0 s22.7 KiB
/resources/global/ardplayer/release-7.3.0/ardplayer-SANDL...2106.0 s19.2 KiB
www.mdr.de/resources/4.11.3/156.chunk.js2035.0 s13.2 KiB
www.mdr.de/resources/global/fonts/rebrush/icons/MDR-Icons.woff99964.0 s21.0 KiB
www.mdr.de/resources/4.11.3/562.chunk.js2021.0 s8.3 KiB
www.mdr.de/resources/global/fonts/rebrush/icons/MDR-Icons.woff299964.0 s17.6 KiB
www.gstatic.com/eureka/clank/146/cast_sender.js86400.0 s13.4 KiB
/resources/global/ardplayer/release-7.3.0/assets/553e2122...224392.0 s13.1 KiB
www.mdr.de/resources/4.11.3/393.chunk.js1977.0 s3.0 KiB
www.mdr.de/administratives/html/temp-fix-100.css?version=151212034.0 s2.2 KiB
www.mdr.de/index-transparent_h-342_w-512_zc-df4464ba.gif13531.0 s1.8 KiB
www.mdr.de/index-transparent_h-341_w-512_zc-d508cf0d.gif13566.0 s1.8 KiB
www.mdr.de/resources/global/css/print.css?version=577153361.0 s1.5 KiB
www.mdr.de/index-transparent_h-288_w-512_zc-361ada63.gif13533.0 s1.8 KiB
www.mdr.de/index-transparent_h-325_w-512_zc-1b9f6f36.gif17014.0 s1.8 KiB
www.mdr.de/index-transparent_h-340_w-512_zc-8b5b6778.gif21741.0 s1.8 KiB
www.mdr.de/index-transparent_h-305_w-512_zc-19a8f313.gif20718.0 s1.8 KiB
www.mdr.de/index-transparent_h-211_w-375_zc-b47326cc.gif17014.0 s1.6 KiB
www.mdr.de/administratives/html/js-addon-base-100.js?version=424833441.0 s1.3 KiB
www.mdr.de/index-transparent_h-149_w-300_zc-0f6661be.gif11454.0 s1.5 KiB
www.mdr.de/index-transparent_h-327_w-512_zc-b6485e82.gif38990.0 s1.8 KiB
www.mdr.de/index-transparent_h-289_w-512_zc-786a6d98.gif51456.0 s1.8 KiB
www.mdr.de/index-transparent_h-329_w-512_zc-e9d11ac4.gif56980.0 s1.8 KiB
www.mdr.de/index-transparent_h-9_w-16_zc-d3fd16cb.gif13531.0 s1.2 KiB
www.mdr.de/index-transparent_h-3_w-4_zc-a5bfe475.gif13531.0 s1.1 KiB
www.mdr.de/index-transparent_h-2_w-3_zc-8cdb29ec.gif13530.0 s1.1 KiB
www.mdr.de/index-transparent_h-1_w-1_zc-97caf4f5.gif14611.0 s1.1 KiB
www.mdr.de/administratives/html/js-addon-100.js?version=179211737.0 s427 B
www.mdr.de/resources/global/img/base/mdr_logo.svg103435.0 s881 B

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
www.mdr.de/resources/global/fonts/rebrush/icons/MDR-Icons.woff80 ms
/resources/global/ardplayer/release-7.3.0/assets/553e2122...80 ms

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: Ein Notarzt steht am hinteren Teil eines Helikopters der Luftrettung und hält e…
path: 1,HTML,2,BODY,8,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,IMG
selector: div.mediaCon > div.media > div.imageWrapper > img.img
snippet: <img alt="Ein Notarzt steht am hinteren Teil eines Helikopters der Luftrettung und h…" data-ctrl-image="{'id':'4ed32903-99e7-4bbb-b943-850e66b80c1d','variants':{'original':'origi…" class="img responsive-img " src="https://www.mdr.de/nachrichten/mdraktuell-luft-106-resimage_v-variantBig24…">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
value: no origins were preconnected
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting

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.mdr.de/resources/4.11.3/main.js?version=25600335.0 KiB288 ms
www.mdr.de/administratives/html/js-addon-base-100.js?version=424831.3 KiB
www.mdr.de/resources/mdrde/channel/homepage/css/theme.css?version=202740 B
www.mdr.de/administratives/html/js-addon-100.js?version=17921427 B
www.mdr.de/resources/4.11.3/main.css?version=2794778.1 KiB82 ms
www.mdr.de/administratives/html/temp-fix-100.css?version=151212.2 KiB

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
Gäste und Abgeordnete sitzen im Sächsischen Landtag auf ihren Plätzen. div.mediaCon > div.media > div.imageWrapper > img.img
/nachrichten/sachsen/politik/landtag-sachsen-138-resimage...66.7 KiB27.3 KiB

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: 964 ms
URLTime Spent
mdr.de/521 ms
www.mdr.de/444 ms
www.mdr.de/home/index.html0.0 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

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: 110 ms 102.9 KiB
URLTransfer SizeEst Savings
www.mdr.de/resources/4.11.3/main.css?version=2794777.7 KiB70.1 KiB
/resources/global/ardplayer/release-7.3.0/ardplayer-mdr-7...35.8 KiB32.7 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: 340 ms 464.3 KiB
URLTransfer SizeEst Savings
www.mdr.de/resources/4.11.3/main.js?version=25600334.6 KiB187.8 KiB
/resources/global/ardplayer/release-7.3.0/ardplayer-mdr-7...253.0 KiB163.1 KiB
www.mdr.de/resources/4.11.3/701.chunk.js119.9 KiB113.4 KiB

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
Logo Mitteldeutscher Rundfunk div.footer-top > div.wrapper > div.mdr > img
www.mdr.de/resources/global/img/base/mdr_logo.svg

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

●Max Potential First Input Delay 110 ms
●Layout shift culprits
●Optimize DOM size
●Forced reflow
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●Avoids enormous network payloads Total size was 1,561 KiB
●JavaScript execution time 0.6 s
●Minimizes main-thread work 1.2 s
●Avoid long main-thread tasks 3 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 100 ms
●Server Backend Latencies 20 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 80 ms
●Avoid large layout shifts 1 layout shift found
○INP breakdown
○User Timing marks and measures
○Avoid non-composited animations
90

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

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.mediaCon > div.media > div.imageWrapper > button.icon-font div.mediaCon > div.media > div.imageWrapper > button.icon-font
div.mediaCon > div.media > div.imageWrapper > button.icon-font div.mediaCon > div.media > div.imageWrapper > button.icon-font
div.mediaCon > div.media > div.imageWrapper > button.icon-font div.mediaCon > div.media > div.imageWrapper > button.icon-font
div.mediaCon > div.media > div.imageWrapper > button.icon-font div.mediaCon > div.media > div.imageWrapper > button.icon-font

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.mod > div.controls > div.buttons > a.prev div.mod > div.controls > div.buttons > a.prev
div.mod > div.controls > div.buttons > a.next div.mod > div.controls > div.buttons > a.next
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll
div.boxCon > div.box > div.teaser > a.linkAll div.boxCon > div.box > div.teaser > a.linkAll

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
BUNDESGESUNDHEITSMINISTERIUM Luftretter befürchten Bruchlandung durch Sparpläne div.innerTeaser > div.teaserInfoWrapper > div.shortInfos > h4
FUSSBALL | REGIONALLIGA Fans von Rot-Weiß Erfurt zerstören Sanitäranlagen in Me… div.innerTeaser > div.teaserInfoWrapper > div.shortInfos > h4
MACH DICH RAN Neuer Look fürs Gemeinschaftshaus Könderitz div.innerTeaser > div.teaserInfoWrapper > div.shortInfos > h4
MDR AKTUELL - DAS NACHRICHTENRADIO #51 Abschiedsparty der Eierstöcke div.innerTeaser > div.teaserInfoWrapper > div.shortInfos > h4
SCI-FI, KATASTROPHEN & SCHWARZER HUMOR ARD Mediathek: Fünf sehenswerte Serien i… div.innerTeaser > div.teaserInfoWrapper > div.shortInfos > h4
HUMMER Fischerei kann profitieren: Offshore-Windparks werden zum Paradies für K… div.innerTeaser > div.teaserInfoWrapper > div.shortInfos > h4
FARBIGE BLÜTEN BIS IN DEN MAI Primeln im Garten pflanzen, pflegen und vermehren div.innerTeaser > div.teaserInfoWrapper > div.shortInfos > h4
AM 26. APRIL IM GEWANDHAUS Konzert "Mozarts Messias" mit den MDR-Ensembles div.innerTeaser > div.teaserInfoWrapper > div.shortInfos > h4
FAKT IST! AUS MAGDEBURG Tanken, Essen, Leben – alles teurer! div.innerTeaser > div.teaserInfoWrapper > div.shortInfos > h4

These are opportunities to improve keyboard navigation in your application.

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
3 min div.media > div.imageWrapper > div.ardplayer-external-wrapper > button.avDetails
○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
●Image elements have `[alt]` attributes
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●`button`, `link`, and `menuitem` elements have accessible names
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Skip links are focusable.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●`<video>` elements contain a `<track>` element with `[kind="captions"]`
●Identical links have the same purpose.
○`[accesskey]` values are unique
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<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.
○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
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○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.
77

Best Practices

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
The disableRemotePlayback attribute should be used in order to disable the default Cast integration instead of using -internal-media-controls-overlay-cast-button selector.
www.mdr.de/home/index.html

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.mdr.de/resources/mdrde/channel/homepage/css/theme.css?version=20274
Failed to load resource: the server responded with a status of 404 ()

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
/resources/global/ardplayer/release-7.3.0/ardplayer-mdr-7...
www.mdr.de/resources/4.11.3/main.js?version=25600www.mdr.de/resources/4.11.3/main.js.map
www.mdr.de/resources/4.11.3/701.chunk.jswww.mdr.de/resources/4.11.3/701.chunk.js.map
www.mdr.de/resources/4.11.3/667.chunk.jswww.mdr.de/resources/4.11.3/667.chunk.js.map
www.mdr.de/resources/4.11.3/562.chunk.jswww.mdr.de/resources/4.11.3/562.chunk.js.map
www.mdr.de/resources/4.11.3/393.chunk.jswww.mdr.de/resources/4.11.3/393.chunk.js.map
www.mdr.de/resources/4.11.3/156.chunk.jswww.mdr.de/resources/4.11.3/156.chunk.js.map
●Uses HTTPS
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
85

SEO

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

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
/nachrichten/deutschland/politik/bundesregierung-gesundhe...mehr
/nachrichten/sachsen/landtag-diaeten-gesetzentwurf-rueckz...mehr
/nachrichten/sachsen-anhalt/verstoesse-gewaesserkontrolle...mehr
/nachrichten/thueringen/ost-thueringen/gera/juengste-buer...mehr
/sport/fussball_rl/zfc-meuselwitz-rot-weiss-erfurt-toilet...mehr
www.mdr.de/sport/eishockey/eishockey-dresdner-eisloewen-trainer-100.htmlmehr
/sport/volleyball/volleyball-meisterschaft-finale-spiel-d...mehr
/sport/basketball/trotz-kritik-vom-verband-grosse-vorfreu...mehr
/kultur/kino-und-film/serie-ard-mediathek-tipps-april-hig...mehr
/kultur/ausstellungen/thueringen-museum-kunst-ausstellung...mehr
www.mdr.de/kultur/musik/leipzig-dresden-chemnitz-konzerte-april-106.htmlmehr
/kultur/ausflug-tipps/sachsen-anhalt-ausflugsziele-kinder...mehr
/wissen/umwelt-klima/offshore-windparks-kuenstliche-riffe...mehr
/wissen/naturwissenschaften-technik/japan-risiko-fuer-meg...mehr
www.mdr.de/wissen/naturwissenschaften-technik/halbleiter-chips-100.htmlmehr
/wissen/astronomie-raumfahrt/komet-panstarrs-fliegt-an-de...mehr
www.mdr.de/mdr-garten/pflanzen/primeln-schluesselblumen-primula-106.htmlmehr
/nachrichten/deutschland/panorama/pollenflug-allergie-kli...mehr
/klassik/konzert-leipzig-messias-rundfunkchor-sinfonieorc...mehr
www.mdr.de/presse/fakt-ist-tanken-essen-leben-100.htmlmehr
www.mdr.de/nachrichten/mitmachen/fruehlingserwachen/few-116.htmlmehr
www.mdr.de/presse/filmfest-dresden-208.htmlmehr

Format your HTML in a way that enables crawlers to better understand your app’s content.

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
Nachrichten & Themen div.mdr-header-accordion > ul.mdr-header-navi > li.mdr-header-navi-item > a
Mediathek & TV div.mdr-header-accordion > ul.mdr-header-navi > li.mdr-header-navi-item > a
Audio & Radio div.mdr-header-accordion > ul.mdr-header-navi > li.mdr-header-navi-item > a

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

Send Feedback