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fbdown.net Desktop Performance
98/100
These metrics represent real-world Chrome users experience viewing fbdown.net 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
Largest Contentful Paint95/100 1.0 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
First Contentful Paint97/100 0.7 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Speed Index97/100 1.0 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Total Blocking Time100/100 0 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 0.028
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Time to Interactive100/100 0.8 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Should Fix (8)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Eliminate render-blocking resources
Potential savings of 240 ms
237 ms
Remove unused CSS
Potential savings of 16 KiB
80 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
Uses efficient cache policy on static assets
25 resources found
Avoid chaining critical requests
10 chains found
Largest Contentful Paint element
1 element found
Keep request counts low and transfer sizes small
37 requests • 249 KiB
Avoid large layout shifts
5 elements found
Passed Audits (20)
Minify CSS
Preconnect to required origins
Avoids `document.write()`
Serve images in next-gen formats
Remove unused JavaScript
Potential savings of 36 KiB
JavaScript execution time
0.1 s
Enable text compression
Avoids enormous network payloads
Total size was 249 KiB
Avoid multiple page redirects
Potential savings of 190 ms
Preload key requests
Minimize third-party usage
Third-party code blocked the main thread for 0 ms
Uses passive listeners to improve scrolling performance
Use video formats for animated content
Initial server response time was short
Root document took 420 ms
Efficiently encode images
Minify JavaScript
Properly size images
Potential savings of 23 KiB
Minimizes main-thread work
0.4 s
Defer offscreen images
Avoids an excessive DOM size
394 elements
fbdown.net Desktop SEO
83/100
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 (2)
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
Links do not have descriptive text
2 links found
Passed Audits (10)
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Page has successful HTTP status code
Page isn’t blocked from indexing
Document has a meta description
robots.txt is valid
Document avoids plugins
Document has a valid `hreflang`
Links are crawlable
Document has a valid `rel=canonical`
Document has a `<title>` element
fbdown.net Desktop Best Practices
69/100
These checks highlight opportunities to improve the overall code health of fbdown.net 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
Includes front-end JavaScript libraries with known security vulnerabilities
4 vulnerabilities detected
Does not use HTTPS
1 insecure request found
Links to cross-origin destinations are unsafe
User Experience
Displays images with incorrect aspect ratio
Passed Audits (10)
No browser errors logged to the console
Properly defines charset
Page has the HTML doctype
Allows users to paste into password fields
Avoids requesting the geolocation permission on page load
Serves images with appropriate resolution
Avoids Application Cache
Avoids requesting the notification permission on page load
Avoids deprecated APIs
Detected JavaScript libraries
fbdown.net Desktop Progressive Web App
48/100
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 (8)
PWA Optimized
Is not configured for a custom splash screen
Manifest doesn't have a maskable icon
Does not set a theme color for the address bar.
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
`start_url` does not respond with a 200 when offline
Current page does not respond with a 200 when offline
Passed Audits (5)
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Provides a valid `apple-touch-icon`
Page load is fast enough on mobile networks
Contains some content when JavaScript is not available
Redirects HTTP traffic to HTTPS
fbdown.net Desktop Accessibility
86/100
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.
Form elements do not have associated labels
Image elements do not have `[alt]` attributes
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Passed Audits (23)
`[role]`s have all required `[aria-*]` attributes
`[aria-hidden="true"]` is not present on the document `<body>`
`[aria-*]` attributes match their roles
`[aria-hidden="true"]` elements do not contain focusable descendents
`[role]` values are valid
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
`<frame>` or `<iframe>` elements have a title
`[aria-*]` attributes have valid values
Buttons have an accessible name
The page contains a heading, skip link, or landmark region
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Heading elements appear in a sequentially-descending order
Links have a discernible name
`[aria-*]` attributes are valid and not misspelled
`<html>` element has a `[lang]` attribute
`[role]`s are contained by their required parent element
No element has a `[tabindex]` value greater than 0
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
`[id]` attributes on active, focusable elements are unique
`<html>` element has a valid value for its `[lang]` attribute
Document has a `<title>` element
ARIA IDs are unique
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
Desktop Speed
77/100
These checks analyze the performance of fbdown.net 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 (5)
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Leverage browser caching
Enable compression
Optimize images
Prioritize visible content
Passed Audits (5)
Avoid landing page redirects
Reduce server response time
Minify CSS
Minify HTML
Minify JavaScript
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