N-tv.de Nachrichten, aktuelle Schlagzeilen und Videos - n-tv.de
Nachrichten seriös, schnell und kompetent. Artikel und Videos aus Politik, Wirtschaft, Börse, Sport und News aus aller Welt.
n-tv.de Desktop Performance
40/100
These metrics represent real-world Chrome users experience viewing n-tv.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 Input Delay
Largest Contentful Paint
Cumulative Layout Shift
First Contentful Paint
Metrics
Total Blocking Time1/100 1,650 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Largest Contentful Paint34/100 3.0 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Speed Index34/100 2.8 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Time to Interactive47/100 4.6 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
First Contentful Paint96/100 0.8 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Cumulative Layout Shift100/100 0.006
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Should Fix (15)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Properly size images
Potential savings of 494 KiB
750 ms
Remove unused JavaScript
Potential savings of 221 KiB
240 ms
Serve images in next-gen formats
Potential savings of 29 KiB
120 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
Avoid an excessive DOM size
5,795 elements
Reduce the impact of third-party code
Third-party code blocked the main thread for 450 ms
Avoid `document.write()`
Serve static assets with an efficient cache policy
106 resources found
Minimize main-thread work
7.1 s
Reduce JavaScript execution time
4.3 s
Avoid chaining critical requests
4 chains found
Avoid long main-thread tasks
15 long tasks found
Largest Contentful Paint element
1 element found
Avoid large layout shifts
5 elements found
Keep request counts low and transfer sizes small
207 requests • 1,960 KiB
Passed Audits (14)
All text remains visible during webfont loads
Minify JavaScript
Potential savings of 4 KiB
Avoids enormous network payloads
Total size was 1,960 KiB
Eliminate render-blocking resources
Potential savings of 0 ms
Defer offscreen images
Potential savings of 194 KiB
Remove unused CSS
Potential savings of 22 KiB
Minify CSS
Preload key requests
Initial server response time was short
Root document took 290 ms
Avoid multiple page redirects
Potential savings of 190 ms
Enable text compression
Potential savings of 27 KiB
Preconnect to required origins
Efficiently encode images
Potential savings of 12 KiB
Use video formats for animated content
n-tv.de Desktop SEO
92/100
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 (1)
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 (11)
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
robots.txt is valid
Page isn’t blocked from indexing
Document has a `<title>` element
Page has successful HTTP status code
Links are crawlable
Document has a valid `hreflang`
Links have descriptive text
Document avoids plugins
Document has a meta description
Document has a valid `rel=canonical`
n-tv.de Desktop Best Practices
77/100
These checks highlight opportunities to improve the overall code health of n-tv.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 (3)
Trust and Safety
Does not use HTTPS
1 insecure request found
Links to cross-origin destinations are unsafe
Includes front-end JavaScript libraries with known security vulnerabilities
2 vulnerabilities detected
Passed Audits (11)
Detected JavaScript libraries
Avoids deprecated APIs
Avoids Application Cache
No browser errors logged to the console
Displays images with correct aspect ratio
Allows users to paste into password fields
Serves images with appropriate resolution
Page has the HTML doctype
Avoids requesting the notification permission on page load
Avoids requesting the geolocation permission on page load
Properly defines charset
n-tv.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)
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
Web app manifest does not meet the installability requirements
Does not register a service worker that controls page and `start_url`
Fast and reliable
Current page does not respond with a 200 when offline
`start_url` does not respond with a 200 when offline
Page load is not fast enough on mobile networks
Interactive on simulated mobile network at 20.1 s
Passed Audits (4)
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Redirects HTTP traffic to HTTPS
Provides a valid `apple-touch-icon`
Contains some content when JavaScript is not available
n-tv.de Desktop Accessibility
85/100
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 (4)
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.
Image elements do not have `[alt]` attributes
Form elements do not have associated labels
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Passed Audits (22)
`[aria-*]` attributes have valid values
`[aria-hidden="true"]` is not present on the document `<body>`
`<frame>` or `<iframe>` elements have a title
Links have a discernible name
Heading elements appear in a sequentially-descending order
ARIA IDs are unique
`[aria-*]` attributes match their roles
`[aria-*]` attributes are valid and not misspelled
`[id]` attributes on active, focusable elements are unique
Document has a `<title>` element
Buttons have an accessible name
`<html>` element has a valid value for its `[lang]` attribute
`<html>` element has a `[lang]` attribute
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
No element has a `[tabindex]` value greater than 0
`[role]`s have all required `[aria-*]` attributes
The page contains a heading, skip link, or landmark region
`[role]`s are contained by their required parent element
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
`[role]` values are valid
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
Desktop Speed
67/100
These checks analyze the performance of n-tv.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 (8)
Optimize images
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Leverage browser caching
Avoid landing page redirects
Minify HTML
Minify JavaScript
Minify CSS
Enable compression
Passed Audits (2)
Reduce server response time
Prioritize visible content
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