4pda.ru 4PDA
4PDA
4pda.ru Desktop Performance
77/100
These metrics represent real-world Chrome users experience viewing 4pda.ru 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
Cumulative Layout Shift
First Input Delay
First Contentful Paint
Largest Contentful Paint
Metrics
Speed Index36/100 2.7 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Largest Contentful Paint52/100 2.3 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Time to Interactive90/100 2.5 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
First Contentful Paint98/100 0.7 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Total Blocking Time100/100 40 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
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.
Serve images in next-gen formats
Potential savings of 869 KiB
680 ms
Defer offscreen images
Potential savings of 750 KiB
500 ms
Eliminate render-blocking resources
Potential savings of 300 ms
298 ms
Efficiently encode images
Potential savings of 322 KiB
180 ms
Reduce initial server response time
Root document took 760 ms
160 ms
Remove unused JavaScript
Potential savings of 126 KiB
100 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Avoid `document.write()`
Does not use passive listeners to improve scrolling performance
Ensure text remains visible during webfont load
Serve static assets with an efficient cache policy
55 resources found
Avoid an excessive DOM size
1,442 elements
Minimizes main-thread work
1.9 s
Avoid long main-thread tasks
5 long tasks found
Avoid chaining critical requests
4 chains found
Keep request counts low and transfer sizes small
84 requests • 1,988 KiB
Largest Contentful Paint element
1 element found
Passed Audits (12)
Preconnect to required origins
Minimize third-party usage
Third-party code blocked the main thread for 60 ms
JavaScript execution time
0.9 s
Minify CSS
Potential savings of 2 KiB
Preload key requests
Avoid multiple page redirects
Potential savings of 190 ms
Minify JavaScript
Properly size images
Potential savings of 31 KiB
Avoids enormous network payloads
Total size was 1,988 KiB
Remove unused CSS
Potential savings of 30 KiB
Use video formats for animated content
Enable text compression
4pda.ru Desktop SEO
82/100
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)
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
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 (9)
robots.txt is valid
Document has a `<title>` element
Page isn’t blocked from indexing
Document avoids plugins
Document has a meta description
Links have descriptive text
Page has successful HTTP status code
Document has a valid `hreflang`
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
4pda.ru Desktop Best Practices
77/100
These checks highlight opportunities to improve the overall code health of 4pda.ru 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)
User Experience
Serves images with low resolution
Trust and Safety
Includes front-end JavaScript libraries with known security vulnerabilities
4 vulnerabilities detected
Does not use HTTPS
1 insecure request found
Passed Audits (11)
Detected JavaScript libraries
Displays images with correct aspect ratio
Page has the HTML doctype
Avoids requesting the geolocation permission on page load
Links to cross-origin destinations are safe
Properly defines charset
Avoids requesting the notification permission on page load
Avoids deprecated APIs
No browser errors logged to the console
Allows users to paste into password fields
Avoids Application Cache
4pda.ru 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
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.
Fast and reliable
`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 10.5 s
Current page does not respond with a 200 when offline
Installable
Does not register a service worker that controls page and `start_url`
Web app manifest does not meet the installability requirements
Does not use HTTPS
1 insecure request found
Passed Audits (4)
Contains some content when JavaScript is not available
Redirects HTTP traffic to HTTPS
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Provides a valid `apple-touch-icon`
4pda.ru Desktop Accessibility
66/100
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 (5)
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
Image elements do not have `[alt]` attributes
`<frame>` or `<iframe>` elements do not have a title
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 (12)
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
`[aria-hidden="true"]` elements do not contain focusable descendents
Document has a `<title>` element
The page contains a heading, skip link, or landmark region
`[id]` attributes on active, focusable elements are unique
`<html>` element has a `[lang]` attribute
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
`[aria-hidden="true"]` is not present on the document `<body>`
`<html>` element has a valid value for its `[lang]` attribute
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
Buttons have an accessible name
Heading elements appear in a sequentially-descending order
Desktop Speed
59/100
These checks analyze the performance of 4pda.ru 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 (3)
Optimize images
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Leverage browser caching
Passed Audits (7)
Avoid landing page redirects
Enable compression
Reduce server response time
Minify CSS
Minify HTML
Minify JavaScript
Prioritize visible content
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