Bahn.de Deutsche Bahn: bahn.de - Ihr Mobilitätsportal für Reisen, Bahn, Urlaub, Hotels, Städtereisen und Mietwagen
Deutschlands beliebtestes Reise- und Mobilitätsportal: Auskunft, Bahnfahrkarten, Online-Tickets, Länder-Tickets, günstige Angebote rund um Urlaub und...
bahn.de Mobile Performance
13/100
These metrics represent real-world Chrome users experience viewing bahn.de on mobile devices. Reports are focused on loading performance and other critical factors that most affect user experience. Follow our guide to track, optimize, and improve the quality of your web pages.
User Loading Experience
Largest Contentful Paint
Cumulative Layout Shift
First Input Delay
First Contentful Paint
Metrics
Largest Contentful Paint1/100 9.5 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Total Blocking Time6/100 1,450 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Time to Interactive9/100 14.7 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Speed Index11/100 9.8 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
First Contentful Paint22/100 5.6 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Cumulative Layout Shift100/100 0.022
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Should Fix (23)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Eliminate render-blocking resources
Potential savings of 2,190 ms
2,190 ms
Avoid multiple page redirects
Potential savings of 1,410 ms
1,410 ms
Defer offscreen images
Potential savings of 301 KiB
1,350 ms
Serve images in next-gen formats
Potential savings of 218 KiB
1,050 ms
Remove unused JavaScript
Potential savings of 96 KiB
750 ms
Remove unused CSS
Potential savings of 85 KiB
600 ms
Reduce initial server response time
Root document took 1,160 ms
557 ms
Properly size images
Potential savings of 83 KiB
450 ms
Minify JavaScript
Potential savings of 19 KiB
150 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Does not use passive listeners to improve scrolling performance
Ensure text remains visible during webfont load
Avoid `document.write()`
Reduce the impact of third-party code
Third-party code blocked the main thread for 1,200 ms
Minimize main-thread work
11.1 s
Avoid an excessive DOM size
2,604 elements
Reduce JavaScript execution time
7.1 s
Serve static assets with an efficient cache policy
41 resources found
Largest Contentful Paint element
1 element found
Avoid large layout shifts
5 elements found
Avoid chaining critical requests
10 chains found
Keep request counts low and transfer sizes small
70 requests • 1,481 KiB
User Timing marks and measures
1 user timing
Avoid long main-thread tasks
17 long tasks found
Passed Audits (7)
Efficiently encode images
Preload key requests
Avoids enormous network payloads
Total size was 1,481 KiB
Minify CSS
Preconnect to required origins
Use video formats for animated content
Enable text compression
Potential savings of 2 KiB
bahn.de Mobile SEO
82/100
These checks ensure that your page is optimized for search engine results ranking. There are additional factors Lighthouse does not check that may affect your search ranking. Learn more. Run these additional validators on your site to check additional SEO best practices.
Should Fix (3)
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. Learn more.
Tap targets are not sized appropriately
71% appropriately sized tap targets
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Image elements do not have `[alt]` attributes
Passed Audits (10)
Page isn’t blocked from indexing
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Document has a valid `rel=canonical`
Document has a `<title>` element
Document has a valid `hreflang`
Links have descriptive text
Document has a meta description
Document avoids plugins
Page has successful HTTP status code
Document uses legible font sizes
100% legible text
bahn.de Mobile Best Practices
77/100
These checks highlight opportunities to improve the overall code health of bahn.de mobile page. Current recommendations will help to make your page fast and secure, to create a good user experience and to avoid deprecated technologies.
Should Fix (3)
Trust and Safety
Links to cross-origin destinations are unsafe
Does not use HTTPS
1 insecure request found
Includes front-end JavaScript libraries with known security vulnerabilities
4 vulnerabilities detected
Passed Audits (11)
Avoids requesting the geolocation permission on page load
Avoids Application Cache
Properly defines charset
No browser errors logged to the console
Avoids requesting the notification permission on page load
Detected JavaScript libraries
Avoids deprecated APIs
Displays images with correct aspect ratio
Serves images with appropriate resolution
Allows users to paste into password fields
Page has the HTML doctype
bahn.de Mobile Progressive Web App
21/100
These checks validate the aspects of a Progressive Web App. Learn more. These checks are required by the baseline PWA Checklist but are not automatically checked by Lighthouse. They do not affect your score but it's important that you verify them manually.
Should Fix (10)
Fast and reliable
`start_url` does not respond with a 200 when offline
Current page does not respond with a 200 when offline
Page load is not fast enough on mobile networks
Interactive at 14.7 s
PWA Optimized
Does not provide a valid `apple-touch-icon`
Is not configured for a custom splash screen
Does not set a theme color for the address bar.
Manifest doesn't have a maskable icon
Installable
Web app manifest does not meet the installability requirements
Does not register a service worker that controls page and `start_url`
Does not use HTTPS
1 insecure request found
Passed Audits (4)
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Redirects HTTP traffic to HTTPS
Content is sized correctly for the viewport
Contains some content when JavaScript is not available
bahn.de Mobile Accessibility
73/100
These checks highlight opportunities to improve the accessibility of your web app. Only a subset of accessibility issues can be automatically detected so manual testing is also encouraged. These items address areas which an automated testing tool cannot cover. Learn more in our guide on conducting an accessibility review.
Should Fix (8)
Navigation
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
Some elements have a `[tabindex]` value greater than 0
Names and labels
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.
Form elements do not have associated labels
Buttons do not have an accessible name
Image elements do not have `[alt]` attributes
`<frame>` or `<iframe>` elements do not have a title
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Passed Audits (17)
`<html>` element has a valid value for its `[lang]` attribute
`[role]`s have all required `[aria-*]` attributes
`[id]` attributes on active, focusable elements are unique
`[aria-*]` attributes are valid and not misspelled
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
`[aria-*]` attributes have valid values
`[aria-*]` attributes match their roles
`[role]`s are contained by their required parent element
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Document has a `<title>` element
The page contains a heading, skip link, or landmark region
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`<html>` element has a `[lang]` attribute
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]` values are valid
ARIA IDs are unique
`[aria-hidden="true"]` is not present on the document `<body>`
Mobile Usability
99/100
These checks validate how easily a visitor can use bahn.de on a mobile device. Test results include a list of any mobile usability problems. Mobile usability problems are issues that can affect a user that visits the page on a mobile (small screen) device, including small font sizes (which are hard to read on a small screen).
Should Fix (1)
Size tap targets appropriately
Passed Audits (4)
Avoid plugins
Configure the viewport
Size content to viewport
Use legible font sizes
Mobile Speed
58/100
These checks analyze the performance of bahn.de on mobile devices and return PageSpeed score and information on how to improve the load time. What makes a good Progressive Web App?
Should Fix (6)
Avoid landing page redirects
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Reduce server response time
Leverage browser caching
Enable compression
Optimize images
Passed Audits (4)
Minify CSS
Minify HTML
Minify JavaScript
Prioritize visible content
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