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zeit.de Desktop Performance
44/100
These metrics represent real-world Chrome users experience viewing zeit.de web page. 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
First Contentful Paint
First Input Delay
Cumulative Layout Shift
Largest Contentful Paint
Metrics
Total Blocking Time4/100 1,100 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Speed Index28/100 3.0 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Time to Interactive50/100 4.5 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Largest Contentful Paint51/100 2.4 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
First Contentful Paint92/100 0.9 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Cumulative Layout Shift98/100 0.056
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Should Fix (16)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Remove unused JavaScript
Potential savings of 218 KiB
350 ms
Eliminate render-blocking resources
Potential savings of 260 ms
260 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Avoid an excessive DOM size
4,966 elements
Reduce the impact of third-party code
Third-party code blocked the main thread for 870 ms
Ensure text remains visible during webfont load
Avoid `document.write()`
Does not use passive listeners to improve scrolling performance
Serve static assets with an efficient cache policy
38 resources found
Minimize main-thread work
6.8 s
Reduce JavaScript execution time
3.1 s
User Timing marks and measures
14 user timings
Avoid chaining critical requests
12 chains found
Avoid large layout shifts
5 elements found
Avoid long main-thread tasks
13 long tasks found
Largest Contentful Paint element
1 element found
Keep request counts low and transfer sizes small
194 requests • 2,006 KiB
Passed Audits (14)
Minify CSS
Defer offscreen images
Preconnect to required origins
Use video formats for animated content
Efficiently encode images
Avoid multiple page redirects
Potential savings of 190 ms
Preload key requests
Serve images in next-gen formats
Remove unused CSS
Potential savings of 14 KiB
Initial server response time was short
Root document took 260 ms
Avoids enormous network payloads
Total size was 2,006 KiB
Properly size images
Enable text compression
Minify JavaScript
Potential savings of 5 KiB
zeit.de Desktop SEO
100/100
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.
Passed Audits (12)
Image elements have `[alt]` attributes
Links are crawlable
Page has successful HTTP status code
Document has a valid `hreflang`
robots.txt is valid
Document has a meta description
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Page isn’t blocked from indexing
Document has a `<title>` element
Document has a valid `rel=canonical`
Document avoids plugins
Links have descriptive text
zeit.de Desktop Best Practices
69/100
These checks highlight opportunities to improve the overall code health of zeit.de 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 (4)
Trust and Safety
Does not use HTTPS
1 insecure request found
Links to cross-origin destinations are unsafe
General
Uses deprecated APIs
1 warning found
Browser errors were logged to the console
Passed Audits (10)
Avoids requesting the notification permission on page load
Avoids requesting the geolocation permission on page load
Properly defines charset
Serves images with appropriate resolution
Avoids Application Cache
Page has the HTML doctype
Detected JavaScript libraries
Displays images with correct aspect ratio
Avoids front-end JavaScript libraries with known security vulnerabilities
Allows users to paste into password fields
zeit.de Desktop Progressive Web App
22/100
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 (9)
Fast and reliable
Page load is not fast enough on mobile networks
Interactive on simulated mobile network at 23.0 s
Current page does not respond with a 200 when offline
`start_url` does not respond with a 200 when offline
PWA Optimized
Does not set a theme color for the address bar.
Is not configured for a custom splash screen
Manifest doesn't have a maskable icon
Installable
Does not use HTTPS
1 insecure request found
Does not register a service worker that controls page and `start_url`
Web app manifest does not meet the installability requirements
Passed Audits (4)
Provides a valid `apple-touch-icon`
Contains some content when JavaScript is not available
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Redirects HTTP traffic to HTTPS
zeit.de Desktop Accessibility
84/100
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 (7)
ARIA
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.
`[aria-hidden="true"]` elements contain focusable descendents
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.
Links do not have a discernible name
`<frame>` or `<iframe>` elements do not have a title
Form elements do not have associated labels
Tables and lists
These are opportunities to to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Navigation
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Passed Audits (21)
ARIA IDs are unique
`[aria-*]` attributes match their roles
Image elements have `[alt]` attributes
`<object>` elements have `[alt]` text
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
`[role]`s are contained by their required parent element
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
`[aria-*]` attributes have valid values
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`<html>` element has a `[lang]` attribute
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
`<html>` element has a valid value for its `[lang]` attribute
`[aria-hidden="true"]` is not present on the document `<body>`
The page contains a heading, skip link, or landmark region
`[role]`s have all required `[aria-*]` attributes
Document has a `<title>` element
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`[role]` values are valid
`[id]` attributes on active, focusable elements are unique
Desktop Speed
51/100
These checks analyze the performance of zeit.de on desktop devices and return PageSpeed score and information on how to improve the load time. What makes a good Progressive Web App?
Should Fix (7)
Optimize images
Enable compression
Leverage browser caching
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Prioritize visible content
Minify JavaScript
Minify HTML
Passed Audits (3)
Avoid landing page redirects
Reduce server response time
Minify CSS
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