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amazon.de Mobile Performance
40/100
These metrics represent real-world Chrome users experience viewing amazon.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
Cumulative Layout Shift
First Input Delay
First Contentful Paint
Largest Contentful Paint
Metrics
Largest Contentful Paint0/100 15.0 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Time to Interactive11/100 13.8 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Speed Index21/100 8.1 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
First Contentful Paint57/100 3.7 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Total Blocking Time86/100 320 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Cumulative Layout Shift95/100 0.075
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Should Fix (19)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Defer offscreen images
Potential savings of 683 KiB
2,820 ms
Avoid multiple page redirects
Potential savings of 1,110 ms
1,110 ms
Remove unused JavaScript
Potential savings of 76 KiB
960 ms
Properly size images
Potential savings of 139 KiB
720 ms
Reduce initial server response time
Root document took 1,280 ms
679 ms
Serve images in next-gen formats
Potential savings of 102 KiB
630 ms
Efficiently encode images
Potential savings of 73 KiB
480 ms
Eliminate render-blocking resources
Potential savings of 150 ms
150 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Avoid `document.write()`
Ensure text remains visible during webfont load
Does not use passive listeners to improve scrolling performance
Reduce the impact of third-party code
Third-party code blocked the main thread for 1,050 ms
Minimize main-thread work
6.2 s
Reduce JavaScript execution time
3.3 s
Largest Contentful Paint element
1 element found
Keep request counts low and transfer sizes small
200 requests • 2,380 KiB
Avoid large layout shifts
4 elements found
Avoid chaining critical requests
4 chains found
Avoid long main-thread tasks
12 long tasks found
Passed Audits (10)
Avoids an excessive DOM size
654 elements
Remove unused CSS
Potential savings of 49 KiB
Minify JavaScript
Avoids enormous network payloads
Total size was 2,380 KiB
Enable text compression
Use video formats for animated content
Preload key requests
Minify CSS
Uses efficient cache policy on static assets
21 resources found
Preconnect to required origins
amazon.de Mobile SEO
99/100
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)
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
94% appropriately sized tap targets
Passed Audits (13)
Links have descriptive text
robots.txt is valid
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Document has a valid `hreflang`
Page isn’t blocked from indexing
Page has successful HTTP status code
Document has a meta description
Links are crawlable
Document has a `<title>` element
Document has a valid `rel=canonical`
Document avoids plugins
Document uses legible font sizes
91.61% legible text
Image elements have `[alt]` attributes
amazon.de Mobile Best Practices
85/100
These checks highlight opportunities to improve the overall code health of amazon.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)
General
Browser errors were logged to the console
Trust and Safety
Does not use HTTPS
1 insecure request found
Passed Audits (12)
Detected JavaScript libraries
Displays images with correct aspect ratio
Links to cross-origin destinations are safe
Properly defines charset
Serves images with appropriate resolution
Avoids Application Cache
Page has the HTML doctype
Allows users to paste into password fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Avoids front-end JavaScript libraries with known security vulnerabilities
Avoids deprecated APIs
amazon.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
Does not provide a valid `apple-touch-icon`
Does not set a theme color for the address bar.
Manifest doesn't have a maskable icon
Is not configured for a custom splash screen
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
Fast and reliable
Current page does not respond with a 200 when offline
Page load is not fast enough on mobile networks
Interactive at 13.8 s
`start_url` does not respond with a 200 when offline
Passed Audits (4)
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Content is sized correctly for the viewport
Redirects HTTP traffic to HTTPS
Contains some content when JavaScript is not available
amazon.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)
Navigation
These are opportunities to improve keyboard navigation in your application.
`[id]` attributes on active, focusable elements are not unique
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Best practices
These items highlight common accessibility best practices.
`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
Passed Audits (22)
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
The page contains a heading, skip link, or landmark region
`[aria-hidden="true"]` elements do not contain focusable descendents
`[role]`s are contained by their required parent element
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
`[aria-*]` attributes match their roles
Heading elements appear in a sequentially-descending order
Form elements have associated labels
Document has a `<title>` element
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
`<html>` element has a `[lang]` attribute
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]` values are valid
ARIA IDs are unique
Buttons have an accessible name
No element has a `[tabindex]` value greater than 0
`[aria-*]` attributes have valid values
Links have a discernible name
`<html>` element has a valid value for its `[lang]` attribute
`[role]`s have all required `[aria-*]` attributes
Image elements have `[alt]` attributes
`[aria-*]` attributes are valid and not misspelled
Mobile Usability
99/100
These checks validate how easily a visitor can use amazon.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
55/100
These checks analyze the performance of amazon.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 (4)
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Avoid landing page redirects
Leverage browser caching
Prioritize visible content
Passed Audits (6)
Enable compression
Reduce server response time
Minify CSS
Minify HTML
Minify JavaScript
Optimize images
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