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

Audit breakdown by category with detailed findings.

78

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.bahn.de/d-9v3GLoQ/skMBimcE/g/umh7ND0fzOctrN/XGwSAQ/T31A/TAE6QUYB21600.0 s172.8 KiB
www.bahn.de/d-9v3GLoQ/skMBimcE/g/umh7ND0fzOctrN/XGwSAQ/T31A/TAE6QUYB21600.0 s172.8 KiB
cms.static-bahn.de/tms/next-main/utag.js3600.0 s72.1 KiB
cms.static-bahn.de/tms/next-main/utag.1.js?utv=ut4.53.2026041606243600.0 s23.5 KiB
ucm-eu.verint-cdn.com/files/sites/next-bahn-de/live/sdk.js86400.0 s19.0 KiB
ucm-eu.verint-cdn.com/files/sites/next-bahn-de/live/customcode.js86400.0 s6.6 KiB
cms.static-bahn.de/tms/next-main/utag.11.js?utv=ut4.53.2024082212183600.0 s1.8 KiB
cdn-at.bahn.de/1x1.gif0.0 ms1.2 KiB

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.15463700000000005] map[node:map[boundingRect:map[bottom:2771 height:1989 left:35 right:1315 top:782 width:1280] lhId:page-3-DIV nodeLabel:Top Angebote Wir drücken den Preis. Sie Ihre Liebsten! BahnCard 50 zum Aktions… path:1,HTML,1,BODY,3,MAIN,3,DIV selector:body > main.doc > div#content snippet:<div id="content"> type:node] score:0.144979 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:2064 height:184 left:107 right:475 top:1880 width:368] lhId:page-12-IMG nodeLabel:div.content-teaser > div.content-teaser--body > figure.content-teaser__image-wrapper > img.image path:1,HTML,1,BODY,3,MAIN,3,DIV,3,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,FIGURE,0,IMG selector:div.content-teaser > div.content-teaser--body > figure.content-teaser__image-wrapper > img.image snippet:<img loading="lazy" width="560" height="280" src="https://assets.static-bahn.de/dam/jcr:1170073b-b971-4517-9384-55b4891c2653…" class="image content-teaser__image" alt=""> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:2771 height:1989 left:35 right:1315 top:782 width:1280] lhId:page-3-DIV nodeLabel:Top Angebote Wir drücken den Preis. Sie Ihre Liebsten! BahnCard 50 zum Aktions… path:1,HTML,1,BODY,3,MAIN,3,DIV selector:body > main.doc > div#content snippet:<div id="content"> type:node] score:0.005918 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:2064 height:184 left:107 right:475 top:1880 width:368] lhId:page-12-IMG nodeLabel:div.content-teaser > div.content-teaser--body > figure.content-teaser__image-wrapper > img.image path:1,HTML,1,BODY,3,MAIN,3,DIV,3,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,FIGURE,0,IMG selector:div.content-teaser > div.content-teaser--body > figure.content-teaser__image-wrapper > img.image snippet:<img loading="lazy" width="560" height="280" src="https://assets.static-bahn.de/dam/jcr:1170073b-b971-4517-9384-55b4891c2653…" class="image content-teaser__image" alt=""> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:614 height:56 left:637 right:1068 top:558 width:432] lhId:page-8-DIV nodeLabel:Ziel path:1,HTML,1,BODY,3,MAIN,2,DIV,7,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,FORM,0,DIV,2,DIV,0,DIV,2,DIV,0,DIV selector:div.quick-finder-basic > div.quick-finder-basic__stations > div.DBWebAutocomplete > div._inputWrapper snippet:<div data-v-3febf432="" class="_inputWrapper"> type:node] score:0.002365 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://www.bahn.de/web/assets/db.B0FA8wBg.woff2]] map[cause:Web font extra:map[type:url value:https://www.bahn.de/web/assets/db.DozR4WLY.woff2]]] type:subitems]] map[node:map[boundingRect:map[bottom:112 height:80 left:1047 right:1095 top:32 width:48] lhId:page-5-DIV nodeLabel:body > header#db-main-navigation > nav.nav > div.search-form__button-wrapper path:1,HTML,1,BODY,2,HEADER,2,NAV,3,DIV selector:body > header#db-main-navigation > nav.nav > div.search-form__button-wrapper snippet:<div class="search-form__button-wrapper"> type:node] score:0.000733] map[node:map[boundingRect:map[bottom:24 height:16 left:838 right:1239 top:8 width:401] lhId:page-2-NAV nodeLabel:Hilfe & Kontakt Hilfe und Kontakt Verkehrsmeldungen Aktuelle Verkehrsmeldungen … path:1,HTML,1,BODY,2,HEADER,0,DIV,2,DIV,0,NAV selector:header#db-main-navigation > div.head > div.flex > nav.metanav snippet:<nav class="metanav js-metanav" aria-label="Metanavigation"> type:node] score:0.000319]]

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.bahn.de/web/assets/db.Vtcsax2n.woff295 ms
www.bahn.de/web/assets/icon-font-fallback.C8-zuliK.woff275 ms
www.bahn.de/web/assets/db.B0FA8wBg.woff260 ms
www.bahn.de/web/assets/db.DozR4WLY.woff255 ms

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:58.426 source:map[type:text value:[unattributed]]]]

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.bahn.de/.resources/bahn-common-light/webresources/css/business-x_642Q6c.css3.5 KiB
/.resources/bahn-common-light/webresources/css/reactive-t...4.1 KiB
www.bahn.de/.resources/bahn-common-light/webresources/css/alert-CtI69qvF.css3.6 KiB
/.resources/bahn-common-light/webresources/css/web-quickf...2.9 KiB
/.resources/bahn-common-light/webresources/css/stage-mark...3.8 KiB
/.resources/bahn-common-light/webresources/css/anchor-ele...2.7 KiB
/.resources/bahn-common-light/webresources/css/highlight-...10.5 KiB
www.bahn.de/.resources/bahn-common-light/webresources/css/main-DdIeZ1XJ.css142.7 KiB122 ms
/.resources/bahn-common-light/webresources/css/content-te...3.8 KiB
/.resources/bahn-common-light/webresources/css/teaser-blo...3.3 KiB
/.resources/bahn-common-light/webresources/css/teaser-sli...3.6 KiB
www.bahn.de/.resources/bahn-common-light/webresources/css/slider-nW9e45o9.css5.3 KiB
www.bahn.de/.resources/bahn-common-light/webresources/css/link-list--DZZirm4.css2.9 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
swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img
/.imaging/focalpoint/752x376/dam/jcr:b9c3cabb-cfbb-4a82-a...30.9 KiB23.7 KiB
swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img
/.imaging/focalpoint/752x376/dam/jcr:04b73d38-2f3b-4b52-9...18.0 KiB13.8 KiB
swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img
/.imaging/focalpoint/752x376/dam/jcr:5d7aa809-ad5b-489b-b...17.9 KiB13.7 KiB
swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img
/.imaging/focalpoint/752x376/dam/jcr:0ab05dba-e91d-403e-9...14.7 KiB11.3 KiB
swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img
/.imaging/focalpoint/752x376/dam/jcr:f746c968-a29f-4b40-b...13.8 KiB10.6 KiB
swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img
/.imaging/focalpoint/752x376/dam/jcr:447893c8-ae2e-4b0a-8...24.6 KiB10.6 KiB
swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img swiper-slide.slider__slide > div.flex > figure.sld-tsr__image-wrapper > img.js-sld__img
/.imaging/focalpoint/752x376/dam/jcr:cdccbcf4-3fde-4cd7-9...11.7 KiB9.0 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: 500 ms
URLTime Spent
bahn.de/500 ms
www.bahn.de/0.0 ms

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
Top Angebote Wir drücken den Preis. Sie Ihre Liebsten! BahnCard 50 zum Aktions… body > main.doc > div#content
0.145
Top Angebote Wir drücken den Preis. Sie Ihre Liebsten! BahnCard 50 zum Aktions… body > main.doc > div#content
0.006
Ziel div.quick-finder-basic > div.quick-finder-basic__stations > div.DBWebAutocomplete > div._inputWrapper
0.002
body > header#db-main-navigation > nav.nav > div.search-form__button-wrapper body > header#db-main-navigation > nav.nav > div.search-form__button-wrapper
0.001
Hilfe & Kontakt Hilfe und Kontakt Verkehrsmeldungen Aktuelle Verkehrsmeldungen … header#db-main-navigation > div.head > div.flex > nav.metanav
0.000
Hilfe & Kontakt Hilfe und Kontakt Verkehrsmeldungen Aktuelle Verkehrsmeldungen … header#db-main-navigation > div.head > div.flex > nav.metanav
0.000
Reisende, Fahrräder, Ermäßigungen 1 Person (27-64 Jahre), keine Ermäßigung button.DBWebDialogButton > span.quick-finder-option-area > span.quick-finder-option-area__content-area > span.quick-finder-option-area__text-content
0.000

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: 200 ms 322.2 KiB
URLTransfer SizeEst Savings
www.bahn.de/.resources/bahn-common-light/webresources/css/main-DdIeZ1XJ.css140.1 KiB130.2 KiB
www.bahn.de/web/assets/style.DisquxeI.css121.9 KiB120.6 KiB
*,*::after,*::before{box-sizing:border-box} …37.7 KiB37.2 KiB
@font-face{font-family:DBWebIconFont;font-style:normal;font-weight:normal;src:url("data:application…34.2 KiB34.2 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: 80 ms 197.7 KiB
URLTransfer SizeEst Savings
www.bahn.de/.resources/bahn-common-light/webresources/js/scripts-2jMH0Z-0.js69.0 KiB39.6 KiB
www.bahn.de/web/assets/common.BFTEk62q.js78.5 KiB35.6 KiB
www.bahn.de/d-9v3GLoQ/skMBimcE/g/umh7ND0fzOctrN/XGwSAQ/T31A/TAE6QUYB171.4 KiB35.4 KiB
www.bahn.de/d-9v3GLoQ/skMBimcE/g/umh7ND0fzOctrN/XGwSAQ/T31A/TAE6QUYB171.4 KiB35.1 KiB
www.bahn.de/web/assets/useVeeValidate.BNMX2jdn.js35.5 KiB31.4 KiB
www.bahn.de/web/assets/unregisterServiceWorker.lzWpSH19.js37.6 KiB20.5 KiB

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 Evaluation1.2 s
Other510 ms
Style & Layout159 ms
Script Parsing & Compilation71 ms
Parse HTML & CSS43 ms
Rendering39 ms
Garbage Collection28 ms

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
Startseite nav.nav > div.head__logo-wrapper > a.head__logo > img.head__logo-image
assets.static-bahn.de/dam/jcr:47b6ca20-95d9-4102-bc5a-6ebb5634f009/db-logo.svg

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

●Max Potential First Input Delay 70 ms
●Optimize DOM size
●LCP breakdown
●LCP request discovery
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●Avoids enormous network payloads Total size was 2,552 KiB
●JavaScript execution time 1.0 s
●Avoid long main-thread tasks 8 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 90 ms
●Server Backend Latencies 180 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 170 ms
○INP breakdown
○User Timing marks and measures
○Avoid non-composited animations
93

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

Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Ein Element vor div.reactive-teaser > div.sld-tsr--three-columns > div.sld-tsr__wrapper > button#right-arrow__02817353-5916-4647-81d1-59fe46681efb

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.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Untermenü für Tickets & Angebote nav.nav > ul.js-desktop-nav > li.nav__item > button.nav__arrow
Untermenü für Info & Services nav.nav > ul.js-desktop-nav > li.nav__item > button.nav__arrow

These items highlight common accessibility best practices.

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
Zur Aktion div.flex > div.sld-tsr__txt-wrapper > div.sld-tsr__txt-bx > a.flex
Strecke auswählen div.sld-tsr__wrapper > swiper-container.multiple-slides > swiper-slide.slider__slide > a.teaser-button
Mehr Informationen swiper-container.multiple-slides > swiper-slide.slider__slide > div.flex > a.flex
Jetzt mitspielen div.sld-tsr__wrapper > swiper-container.multiple-slides > swiper-slide.slider__slide > a.teaser-button
Zur Aktion swiper-container.multiple-slides > swiper-slide.slider__slide > div.flex > a.flex
○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
●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
●`[role]` values are valid
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●ARIA input fields have accessible names
●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
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●ARIA IDs are unique
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements 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
○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
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○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.
100

Best Practices

General

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
www.bahn.de/d-9v3GLoQ/skMBimcE/g/umh7ND0fzOctrN/XGwSAQ/T31A/TAE6QUYB
www.bahn.de/d-9v3GLoQ/skMBimcE/g/umh7ND0fzOctrN/XGwSAQ/T31A/TAE6QUYB
www.bahn.de/.resources/bahn-common/webresources/storage/assets/index-IEh6U0AY.js/.resources/bahn-common/webresources/storage/assets/index...
/.resources/bahn-common-light/webresources/js/wcagContent.../.resources/bahn-common-light/webresources/js/wcagContent...
www.bahn.de/.resources/bahn-common-light/webresources/js/waitUntil-FSCGG_1d.js/.resources/bahn-common-light/webresources/js/waitUntil-F...
www.bahn.de/.resources/bahn-common-light/webresources/js/vSafeHtml-zQBv_oR-.js/.resources/bahn-common-light/webresources/js/vSafeHtml-z...
www.bahn.de/.resources/bahn-common-light/webresources/js/views-DHBw6NAB.jswww.bahn.de/.resources/bahn-common-light/webresources/js/views-DHBw6NAB.js.map
www.bahn.de/.resources/bahn-common-light/webresources/js/v4-CegcQJa7.jswww.bahn.de/.resources/bahn-common-light/webresources/js/v4-CegcQJa7.js.map
www.bahn.de/.resources/bahn-common-light/webresources/js/useViewSize-CrJKvM5J.js/.resources/bahn-common-light/webresources/js/useViewSize...
/.resources/bahn-common-light/webresources/js/useScreenRe.../.resources/bahn-common-light/webresources/js/useScreenRe...
www.bahn.de/.resources/bahn-common-light/webresources/js/userStore-edExKhcR.js/.resources/bahn-common-light/webresources/js/userStore-e...
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www.bahn.de/.resources/bahn-common-light/webresources/js/useI18n-D83IGdpC.jswww.bahn.de/.resources/bahn-common-light/webresources/js/useI18n-D83IGdpC.js.map
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●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 DOM-based XSS with Trusted Types
●Detected JavaScript libraries
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
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
Cookie settings div#consent-layer > div.consent-layer__content > div#consent-layer__desc > a.link
Logout div.nav__main > div#js-login-flyout > div.nav__flyout-footer > a.nav__flyout-logout-link

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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