Worldcert.ir دریافت گواهینامه معتبر | مدرک بین المللی – دریافت گواهینامه معتبر | مدرک بین المللی
worldcert.ir Desktop Performance
70/100
These metrics represent real-world Chrome users experience viewing worldcert.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.
Metrics
Speed Index29/100 2.9 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Cumulative Layout Shift40/100 0.298
Cumulative Layout Shift measures the movement of visible elements within the viewport. 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
First Contentful Paint71/100 1.3 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Time to Interactive99/100 1.6 s
Time to interactive is the amount of time it takes for the page to become fully interactive. 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.
Should Fix (9)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Eliminate render-blocking resources
Potential savings of 1,260 ms
1,255 ms
Reduce initial server response time
Root document took 1,760 ms
1,155 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
Serve static assets with an efficient cache policy
22 resources found
Keep request counts low and transfer sizes small
53 requests • 370 KiB
Avoid long main-thread tasks
2 long tasks found
Avoid large layout shifts
5 elements found
Largest Contentful Paint element
1 element found
Avoid chaining critical requests
39 chains found
Passed Audits (20)
Preload key requests
Use video formats for animated content
JavaScript execution time
0.4 s
Enable text compression
Minify CSS
Potential savings of 10 KiB
Properly size images
Potential savings of 31 KiB
Avoid multiple page redirects
Avoids an excessive DOM size
314 elements
Defer offscreen images
Avoids enormous network payloads
Total size was 370 KiB
Minimize third-party usage
Third-party code blocked the main thread for 0 ms
Serve images in next-gen formats
Potential savings of 40 KiB
Preconnect to required origins
Uses passive listeners to improve scrolling performance
Remove unused JavaScript
Potential savings of 22 KiB
Remove unused CSS
Potential savings of 29 KiB
Avoids `document.write()`
Minify JavaScript
Efficiently encode images
Minimizes main-thread work
1.0 s
worldcert.ir Desktop SEO
92/100
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)
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Document does not have a meta description
Passed Audits (11)
Links have descriptive text
Document has a valid `rel=canonical`
Page has successful HTTP status code
Document has a valid `hreflang`
robots.txt is valid
Document avoids plugins
Document has a `<title>` element
Page isn’t blocked from indexing
Image elements have `[alt]` attributes
Links are crawlable
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
worldcert.ir Desktop Best Practices
77/100
These checks highlight opportunities to improve the overall code health of worldcert.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 (3)
General
Browser errors were logged to the console
Trust and Safety
Does not use HTTPS
53 insecure requests found
Includes front-end JavaScript libraries with known security vulnerabilities
4 vulnerabilities detected
Passed Audits (11)
Avoids Application Cache
Allows users to paste into password fields
Links to cross-origin destinations are safe
Page has the HTML doctype
Displays images with correct aspect ratio
Avoids requesting the geolocation permission on page load
Avoids deprecated APIs
Serves images with appropriate resolution
Properly defines charset
Detected JavaScript libraries
Avoids requesting the notification permission on page load
worldcert.ir Desktop Progressive Web App
37/100
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
Does not redirect HTTP traffic to HTTPS
Is not configured for a custom splash screen
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
53 insecure requests found
Fast and reliable
Current page does not respond with a 200 when offline
`start_url` does not respond with a 200 when offline
Passed Audits (3)
Contains some content when JavaScript is not available
Page load is fast enough on mobile networks
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
worldcert.ir Desktop Accessibility
64/100
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)
Navigation
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
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
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 (10)
`[id]` attributes on active, focusable elements are unique
The page contains a heading, skip link, or landmark region
Document has a `<title>` element
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Image elements have `[alt]` attributes
`<html>` element has a valid value for its `[lang]` attribute
`[aria-hidden="true"]` is not present on the document `<body>`
`<html>` element has a `[lang]` attribute
Links have a discernible name
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
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