Seraj24.ir Seraj24| سایت خبری تحلیلی سراج24
سایت خبری تحلیلی سراج24
seraj24.ir Desktop Performance
62/100
These metrics represent real-world Chrome users experience viewing seraj24.ir 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
Cumulative Layout Shift
First Contentful Paint
Largest Contentful Paint
Metrics
Speed Index1/100 6.2 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Cumulative Layout Shift25/100 0.408
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Largest Contentful Paint28/100 3.3 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Time to Interactive91/100 2.4 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 Time99/100 80 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Should Fix (19)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Reduce initial server response time
Root document took 1,880 ms
1,282 ms
Properly size images
Potential savings of 1,357 KiB
880 ms
Serve images in next-gen formats
Potential savings of 531 KiB
400 ms
Use video formats for animated content
Potential savings of 330 KiB
280 ms
Remove unused CSS
Potential savings of 191 KiB
240 ms
Efficiently encode images
Potential savings of 175 KiB
160 ms
Eliminate render-blocking resources
Potential savings of 160 ms
156 ms
Remove unused JavaScript
Potential savings of 136 KiB
120 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
Does not use passive listeners to improve scrolling performance
Serve static assets with an efficient cache policy
36 resources found
Minimize main-thread work
3.8 s
Avoid an excessive DOM size
1,299 elements
Avoids enormous network payloads
Total size was 2,556 KiB
Avoid long main-thread tasks
5 long tasks found
Avoid large layout shifts
5 elements found
Largest Contentful Paint element
1 element found
Keep request counts low and transfer sizes small
43 requests • 2,556 KiB
Avoid chaining critical requests
4 chains found
Passed Audits (10)
Avoid multiple page redirects
Potential savings of 190 ms
Avoids `document.write()`
Minimize third-party usage
Third-party code blocked the main thread for 0 ms
Minify CSS
Preconnect to required origins
JavaScript execution time
0.4 s
Enable text compression
Minify JavaScript
Preload key requests
Defer offscreen images
seraj24.ir Desktop SEO
91/100
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)
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
Passed Audits (10)
Document has a meta description
Document has a `<title>` element
Links have descriptive text
Page isn’t blocked from indexing
Image elements have `[alt]` attributes
Document has a valid `hreflang`
robots.txt is valid
Page has successful HTTP status code
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Document avoids plugins
seraj24.ir Desktop Best Practices
62/100
These checks highlight opportunities to improve the overall code health of seraj24.ir 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 (5)
General
Browser errors were logged to the console
Trust and Safety
Does not use HTTPS
1 insecure request found
Includes front-end JavaScript libraries with known security vulnerabilities
4 vulnerabilities detected
Links to cross-origin destinations are unsafe
User Experience
Displays images with incorrect aspect ratio
Passed Audits (9)
Avoids deprecated APIs
Avoids Application Cache
Avoids requesting the geolocation permission on page load
Page has the HTML doctype
Serves images with appropriate resolution
Avoids requesting the notification permission on page load
Detected JavaScript libraries
Allows users to paste into password fields
Properly defines charset
seraj24.ir 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
Manifest doesn't have a maskable icon
Is not configured for a custom splash screen
Does not set a theme color for the address bar.
Fast and reliable
Current page does not respond with a 200 when offline
Page load is not fast enough on mobile networks
Interactive on simulated mobile network at 10.8 s
`start_url` does not respond with a 200 when offline
Installable
Web app manifest does not meet the installability requirements
Does not use HTTPS
1 insecure request found
Does not register a service worker that controls page and `start_url`
Passed Audits (4)
Contains some content when JavaScript is not available
Provides a valid `apple-touch-icon`
Redirects HTTP traffic to HTTPS
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
seraj24.ir Desktop Accessibility
82/100
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)
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
Navigation
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
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.
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Passed Audits (13)
`<html>` element has a `[lang]` attribute
`[role]` values are valid
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Document has a `<title>` element
The page contains a heading, skip link, or landmark region
`[role]`s have all required `[aria-*]` attributes
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Image elements have `[alt]` attributes
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
`<html>` element has a valid value for its `[lang]` attribute
`[role]`s are contained by their required parent element
`[id]` attributes on active, focusable elements are unique
`[aria-hidden="true"]` is not present on the document `<body>`
Desktop Speed
36/100
These checks analyze the performance of seraj24.ir 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)
Optimize images
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Prioritize visible content
Leverage browser caching
Minify HTML
Passed Audits (5)
Avoid landing page redirects
Enable compression
Reduce server response time
Minify CSS
Minify JavaScript
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