Ozon.ru
ozon.ru Desktop Performance
50/100
These metrics represent real-world Chrome users experience viewing ozon.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
Largest Contentful Paint
Cumulative Layout Shift
First Contentful Paint
First Input Delay
Metrics
Speed Index13/100 3.8 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Total Blocking Time13/100 740 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Time to Interactive51/100 4.4 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Largest Contentful Paint77/100 1.6 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
First Contentful Paint85/100 1.0 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Cumulative Layout Shift100/100 0
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Should Fix (19)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Properly size images
Potential savings of 601 KiB
790 ms
Remove unused JavaScript
Potential savings of 310 KiB
630 ms
Serve images in next-gen formats
Potential savings of 252 KiB
370 ms
Avoid multiple page redirects
Potential savings of 340 ms
340 ms
Eliminate render-blocking resources
Potential savings of 320 ms
319 ms
Reduce initial server response time
Root document took 890 ms
290 ms
Defer offscreen images
Potential savings of 195 KiB
270 ms
Efficiently encode images
Potential savings of 121 KiB
150 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Avoid `document.write()`
Serve static assets with an efficient cache policy
16 resources found
Avoid an excessive DOM size
1,592 elements
Minimize main-thread work
3.6 s
Reduce JavaScript execution time
2.0 s
Avoids enormous network payloads
Total size was 2,576 KiB
Largest Contentful Paint element
1 element found
Keep request counts low and transfer sizes small
195 requests • 2,576 KiB
User Timing marks and measures
3 user timings
Avoid chaining critical requests
20 chains found
Avoid long main-thread tasks
13 long tasks found
Passed Audits (10)
All text remains visible during webfont loads
Enable text compression
Uses passive listeners to improve scrolling performance
Preconnect to required origins
Minify CSS
Preload key requests
Minimize third-party usage
Third-party code blocked the main thread for 80 ms
Use video formats for animated content
Minify JavaScript
Potential savings of 7 KiB
Remove unused CSS
ozon.ru 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.
Image elements do not have `[alt]` attributes
Passed Audits (11)
Document has a `<title>` element
Document has a valid `rel=canonical`
Page has successful HTTP status code
robots.txt is valid
Document has a meta description
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Document has a valid `hreflang`
Page isn’t blocked from indexing
Document avoids plugins
Links have descriptive text
Links are crawlable
ozon.ru Desktop Best Practices
77/100
These checks highlight opportunities to improve the overall code health of ozon.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)
Trust and Safety
Links to cross-origin destinations are unsafe
Does not use HTTPS
1 insecure request found
General
Browser errors were logged to the console
Passed Audits (11)
Avoids requesting the geolocation permission on page load
Avoids front-end JavaScript libraries with known security vulnerabilities
Avoids deprecated APIs
Page has the HTML doctype
Detected JavaScript libraries
Displays images with correct aspect ratio
Serves images with appropriate resolution
Avoids Application Cache
Allows users to paste into password fields
Avoids requesting the notification permission on page load
Properly defines charset
ozon.ru Desktop Progressive Web App
26/100
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
Does not set a theme color for the address bar.
Manifest doesn't have a maskable icon
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 20.6 s
Current page 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
Passed Audits (5)
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Contains some content when JavaScript is not available
Provides a valid `apple-touch-icon`
Redirects HTTP traffic to HTTPS
Registers a service worker that controls page and `start_url`
ozon.ru Desktop Accessibility
58/100
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 (7)
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
Links do not have a discernible name
Buttons do not have an accessible name
Image elements do not have `[alt]` attributes
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.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
`<html>` element does not have a `[lang]` attribute
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Passed Audits (11)
Document has a `<title>` element
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]` values are valid
No element has a `[tabindex]` value greater than 0
`[role]`s have all required `[aria-*]` attributes
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
`[aria-hidden="true"]` is not present on the document `<body>`
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
`[role]`s are contained by their required parent element
Heading elements appear in a sequentially-descending order
The page contains a heading, skip link, or landmark region
Desktop Speed
62/100
These checks analyze the performance of ozon.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 (7)
Optimize images
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Leverage browser caching
Avoid landing page redirects
Enable compression
Reduce server response time
Minify JavaScript
Passed Audits (3)
Minify CSS
Minify HTML
Prioritize visible content
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