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dwd.de Mobile Performance
25/100
These metrics represent real-world Chrome users experience viewing dwd.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
First Contentful Paint
First Input Delay
Cumulative Layout Shift
Metrics
Largest Contentful Paint0/100 11.0 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Total Blocking Time15/100 1,090 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Time to Interactive25/100 10.4 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
First Contentful Paint39/100 4.5 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Speed Index41/100 6.4 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Cumulative Layout Shift100/100 0
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Should Fix (18)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Preload key requests
Potential savings of 3,150 ms
3,150 ms
Eliminate render-blocking resources
Potential savings of 2,810 ms
2,810 ms
Serve images in next-gen formats
Potential savings of 349 KiB
1,650 ms
Avoid multiple page redirects
Potential savings of 1,110 ms
1,110 ms
Properly size images
Potential savings of 170 KiB
750 ms
Efficiently encode images
Potential savings of 137 KiB
600 ms
Remove unused JavaScript
Potential savings of 100 KiB
600 ms
Remove unused CSS
Potential savings of 30 KiB
150 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Ensure text remains visible during webfont load
Does not use passive listeners to improve scrolling performance
Avoid an excessive DOM size
2,690 elements
Serve static assets with an efficient cache policy
27 resources found
Minimize main-thread work
3.7 s
Reduce JavaScript execution time
2.5 s
Keep request counts low and transfer sizes small
49 requests • 1,098 KiB
Avoid chaining critical requests
10 chains found
Avoid long main-thread tasks
5 long tasks found
Largest Contentful Paint element
1 element found
Passed Audits (9)
Defer offscreen images
Potential savings of 30 KiB
Avoids `document.write()`
Use video formats for animated content
Preconnect to required origins
Minify CSS
Enable text compression
Minify JavaScript
Initial server response time was short
Root document took 210 ms
Avoids enormous network payloads
Total size was 1,098 KiB
dwd.de Mobile SEO
71/100
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 (5)
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
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
robots.txt is not valid
2 errors found
Page is blocked from indexing
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
97% appropriately sized tap targets
Passed Audits (9)
Document has a `<title>` element
Links have descriptive text
Document has a valid `hreflang`
Document has a meta description
Document avoids plugins
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Document uses legible font sizes
94.03% legible text
Page has successful HTTP status code
Document has a valid `rel=canonical`
dwd.de Mobile Best Practices
85/100
These checks highlight opportunities to improve the overall code health of dwd.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 (2)
Trust and Safety
Includes front-end JavaScript libraries with known security vulnerabilities
5 vulnerabilities detected
Does not use HTTPS
1 insecure request found
Passed Audits (12)
No browser errors logged to the console
Properly defines charset
Avoids Application Cache
Allows users to paste into password fields
Serves images with appropriate resolution
Avoids requesting the geolocation permission on page load
Page has the HTML doctype
Displays images with correct aspect ratio
Detected JavaScript libraries
Avoids requesting the notification permission on page load
Links to cross-origin destinations are safe
Avoids deprecated APIs
dwd.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)
PWA Optimized
Manifest doesn't have a maskable icon
Is not configured for a custom splash screen
Does not set a theme color for the address bar.
Does not provide a valid `apple-touch-icon`
Fast and reliable
`start_url` does not respond with a 200 when offline
Page load is not fast enough on mobile networks
Interactive at 10.4 s
Current page does not respond with a 200 when offline
Installable
Does not register a service worker that controls page and `start_url`
Web app manifest does not meet the installability requirements
Does not use HTTPS
1 insecure request found
Passed Audits (4)
Redirects HTTP traffic to HTTPS
Contains some content when JavaScript is not available
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Content is sized correctly for the viewport
dwd.de Mobile Accessibility
90/100
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 (3)
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.
Image elements do not have `[alt]` attributes
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
Passed Audits (21)
`[role]`s have all required `[aria-*]` attributes
Buttons have an accessible name
No element has a `[tabindex]` value greater than 0
Document has a `<title>` element
`[aria-hidden="true"]` elements do not contain focusable descendents
`<html>` element has a valid value for its `[lang]` attribute
`[role]`s are contained by their required parent element
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`[aria-*]` attributes have valid values
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
The page contains a heading, skip link, or landmark region
`[aria-hidden="true"]` is not present on the document `<body>`
`[id]` attributes on active, focusable elements are unique
`<html>` element has a `[lang]` attribute
Background and foreground colors have a sufficient contrast ratio
`[aria-*]` attributes are valid and not misspelled
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
ARIA IDs are unique
`[aria-*]` attributes match their roles
`[role]` values are valid
Mobile Usability
99/100
These checks validate how easily a visitor can use dwd.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
64/100
These checks analyze the performance of dwd.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 (3)
Optimize images
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Leverage browser caching
Passed Audits (7)
Avoid landing page redirects
Enable compression
Reduce server response time
Minify CSS
Minify HTML
Minify JavaScript
Prioritize visible content
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