Adskeeper.co.uk ADSKEEPER
adskeeper.co.uk Desktop Performance
88/100
These metrics represent real-world Chrome users experience viewing adskeeper.co.uk 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
Largest Contentful Paint
First Contentful Paint
First Input Delay
Cumulative Layout Shift
Metrics
Largest Contentful Paint73/100 1.7 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
First Contentful Paint74/100 1.2 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Speed Index90/100 1.3 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Time to Interactive99/100 1.5 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Total Blocking Time100/100 30 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Cumulative Layout Shift100/100 0.007
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Should Fix (9)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Avoid multiple page redirects
Potential savings of 340 ms
340 ms
Remove unused JavaScript
Potential savings of 100 KiB
160 ms
Serve images in next-gen formats
Potential savings of 54 KiB
160 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Serve static assets with an efficient cache policy
3 resources found
Avoid large layout shifts
5 elements found
Largest Contentful Paint element
1 element found
Avoid chaining critical requests
8 chains found
Keep request counts low and transfer sizes small
35 requests • 481 KiB
Avoid long main-thread tasks
1 long task found
Passed Audits (20)
Defer offscreen images
Avoids an excessive DOM size
81 elements
Properly size images
Minify JavaScript
All text remains visible during webfont loads
Efficiently encode images
Minimizes main-thread work
0.8 s
Eliminate render-blocking resources
Potential savings of 0 ms
Minimize third-party usage
Third-party code blocked the main thread for 150 ms
JavaScript execution time
0.4 s
Uses passive listeners to improve scrolling performance
Preload key requests
Avoids enormous network payloads
Total size was 481 KiB
Minify CSS
Remove unused CSS
Preconnect to required origins
Initial server response time was short
Root document took 110 ms
Enable text compression
Avoids `document.write()`
Use video formats for animated content
adskeeper.co.uk 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 (11)
robots.txt is valid
Document has a meta description
Links have descriptive text
Document has a valid `hreflang`
Document has a `<title>` element
Image elements have `[alt]` attributes
Document avoids plugins
Page isn’t blocked from indexing
Page has successful HTTP status code
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Links are crawlable
adskeeper.co.uk Desktop Best Practices
77/100
These checks highlight opportunities to improve the overall code health of adskeeper.co.uk 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
Includes front-end JavaScript libraries with known security vulnerabilities
4 vulnerabilities detected
Links to cross-origin destinations are unsafe
Does not use HTTPS
1 insecure request found
Passed Audits (11)
Avoids requesting the notification permission on page load
Avoids Application Cache
Serves images with appropriate resolution
Properly defines charset
Displays images with correct aspect ratio
No browser errors logged to the console
Allows users to paste into password fields
Page has the HTML doctype
Detected JavaScript libraries
Avoids deprecated APIs
Avoids requesting the geolocation permission on page load
adskeeper.co.uk Desktop Progressive Web App
44/100
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)
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
PWA Optimized
Is not configured for a custom splash screen
Manifest doesn't have a maskable icon
Does not provide a valid `apple-touch-icon`
Does not set a theme color for the address bar.
Fast and reliable
`start_url` does not respond with a 200 when offline
Current page does not respond with a 200 when offline
Passed Audits (4)
Contains some content when JavaScript is not available
Redirects HTTP traffic to HTTPS
Page load is fast enough on mobile networks
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
adskeeper.co.uk Desktop Accessibility
94/100
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 (1)
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Passed Audits (10)
Links have a discernible name
`[aria-hidden="true"]` elements do not contain focusable descendents
`<html>` element has a valid value for its `[lang]` attribute
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.
`[aria-hidden="true"]` is not present on the document `<body>`
Image elements have `[alt]` attributes
Heading elements appear in a sequentially-descending order
The page contains a heading, skip link, or landmark region
`<html>` element has a `[lang]` attribute
Desktop Speed
82/100
These checks analyze the performance of adskeeper.co.uk 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)
Enable compression
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Leverage browser caching
Minify JavaScript
Optimize images
Minify HTML
Minify CSS
Passed Audits (3)
Avoid landing page redirects
Reduce server response time
Prioritize visible content
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