Page summary

https://www.wildberries.ru

Tested 2025-04-02 10:57:49 using Chrome 134.0.6998.35 (runtime settings).

SummaryWaterfall MetricsFilmstrip CoachPageXrayCPU Third party axe
| Summary | | Download Timeline Log | Download HAR | 

Summary

MetricValue
Page metrics
Performance Score63
Total Page Transfer Size1.5 MB
Requests59
Timing metrics
TTFB [median]76 ms
First Paint [median]428 ms
Fully Loaded [median]7.302 s
Google Web Vitals
TTFB [median]76 ms
First Contentful Paint (FCP) [median]428 ms
Largest Contentful Paint (LCP) [median]428 ms
Cumulative Layout Shift (CLS) [median]0.22
Total Blocking Time [median]1.204 s
Max Potential FID [median]1.189 s
CPU metrics
CPU long tasks [median]5
CPU longest task duration1.257 s
CPU last long task happens at2.953 s
Visual Metrics
First Visual Change [median]434 ms
Speed Index [median]2.437 s
Visual Complete 85% [median]3.167 s
Visual Complete 99% [median]3.167 s
Last Visual Change [median]3.167 s
Screenshot of run 3

Timings Summary

Metricminmedianmeanmax
Visual Metrics
FirstVisualChange433 ms434 ms434 ms434 ms
LastVisualChange3.034 s3.167 s3.578 s4.534 s
SpeedIndex2.203 s2.437 s2.523 s2.928 s
VisualReadiness2.600 s2.734 s3.145 s4.100 s
VisualComplete853.034 s3.167 s3.567 s4.500 s
VisualComplete953.034 s3.167 s3.567 s4.500 s
VisualComplete993.034 s3.167 s3.578 s4.534 s
Google Web Vitals
Time To First Byte (TTFB)48 ms76 ms74 ms99 ms
Largest Contentful Paint (LCP)172 ms428 ms345 ms436 ms
First Contentful Paint (FCP)172 ms428 ms345 ms436 ms
Cumulative Layout Shift (CLS)0.09520.21580.18040.2302
More metrics
firstPaint172 ms428 ms345 ms436 ms
loadEventEnd210 ms584 ms528 ms789 ms
CPU
Total Blocking Time1.021 s1.204 s1.304 s1.688 s
Max Potential FID1.020 s1.189 s1.155 s1.257 s
CPU long tasks 4555
CPU last long task happens at2.614 s2.953 s2.872 s3.049 s
| Waterfall | | Download HAR | 

Waterfall

Run 3 SpeedIndex median

| Filmstrip | 

Filmstrip

Use--filmstrip.showAll to show all filmstrips.

0 s
0.3 sCPU Long Task duration 89 ms
0.5 sCPU Long Task duration 88 msFirst Visual Change 433 msFirst Contentful Paint 436 msLCP <> banner_bde769c7-4655-4292-bbb2-dbb2d8fbcea4 436 ms
0.6 sDOM Content Loaded Time 530 msPage Load Time 584 ms
0.8 s
0.9 sCPU Long Task duration 1.189 s
2.1 sLayout Shift 0.00001 2.020 s
2.3 sLayout Shift 0.00137 2.225 s
2.4 sLayout Shift 0.00289 2.327 s
2.5 sLayout Shift 0.00489 2.429 s
2.6 sLayout Shift 0.00656 2.531 sCPU Long Task duration 66 ms
2.7 sLayout Shift 0.00986 2.633 s
3 sCPU Long Task duration 99 ms
3.1 sLayout Shift 0.20458 3.056 s
3.2 sLast Visual Change 3.167 sVisual Complete 85% 3.167 sVisual Complete 95% 3.167 sVisual Complete 99% 3.167 s
| Performance advice | Best practice advice | Privacy advice | Page info | Technologies | 

Coach

The coach helps you find performance problems on your web page using web performance best practice rules. And gives you advice on privacy and best practices. Tested using Coach-core version 8.1.1.

I am the coach

Coach score

Performance advice (63)

TitleAdviceScore
Avoid slowing down the critical rendering path (avoidRenderBlocking)The page has 3 blocking requests and 9 in body parser blocking (9 JavaScript and 3 CSS).10
Description: The critical rendering path is what the browser needs to do to start rendering the page. Every file requested inside of the head element will postpone the rendering of the page, because the browser need to do the request. Avoid loading JavaScript synchronously inside of the head (you should not need JavaScript to render the page), request files from the same domain as the main document (to avoid DNS lookups) and inline CSS for really fast rendering and a short rendering path.
Offenders:
  • https://static-basket-01.wbbasket.ru/vol0/j/app.min.ad19a657450fb2cc.js
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/index.min.aa870ba300f60fe3.js
  • https://static-basket-01.wbbasket.ru/vol0/j/swiper.min.7a55dc87e84f5c3f.js
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/banners.min.fa5c594041669961.js
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/lazyBlockLoader.min.6623456650f0eac0.js
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.tooltip.min.427c93e1900719eb.js
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.shortDeliveries.m...74ef15a1f2f942.js
  • https://static-basket-01.wbbasket.ru/vol0/r/js-templates-ru-ru.10.0.58.js
  • https://static-basket-01.wbbasket.ru/vol0/r/route-data-ru.10.0.58.js
  • Don't scale images in the browser (avoidScalingImages)The page has 6 images that are scaled more than 100 pixels. It would be better if those images are sent so the browser don't need to scale them.40
    Description: It's easy to scale images in the browser and make sure they look good in different devices, however that is bad for performance! Scaling images in the browser takes extra CPU time and will hurt performance on mobile. And the user will download extra kilobytes (sometimes megabytes) of data that could be avoided. Don't do that, make sure you create multiple version of the same image server-side and serve the appropriate one.
    Offenders:
  • https://static-basket-01.wbbasket.ru/vol0/i/v3/header/logoWb.svg
  • https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/2880_80_web_222.webp
  • https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/FFD6F187-37E0-490A-B1B6-F40E8B13927D.webp
  • https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/2880_vesna.webp
  • https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/shoes_sale_2880.webp
  • https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/2880_vesna.webp
  • Avoid CPU Long Tasks (longTasks)The page has 5 CPU long tasks with the total of 1.317 s. The total blocking time is 1.021 s and 2 long tasks before first contentful paint with total time of 146 ms. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. Use Geckoprofiler for Firefox or Chromes tracelog to debug your long tasks.0
    Description: Long CPU tasks locks the thread. To the user this is commonly visible as a "locked up" page where the browser is unable to respond to user input; this is a major source of bad user experience on the web today. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. To debug you should use the Chrome timeline log and drag/drop it into devtools or use Firefox Geckoprofiler.
    Offenders:
  • unknown
  • self
  • self
  • self
  • unknown
  • Avoid Frontend single point of failures (spof)The page has 3 requests inside of the head that can cause a SPOF (single point of failure). Load them asynchronously or move them outside of the document head.90
    Description: A page can be stopped from loading in the browser if a single JavaScript, CSS, and in some cases a font, couldn't be fetched or is loading really slowly (the white screen of death). That is a scenario you really want to avoid. Never load 3rd-party components synchronously inside of the head tag.
    Offenders:
  • https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/main-v3.min.9cea5207d2254160.css
  • https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/common.min.614a75c33608de2a.css
  • https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/site/main-page-v...29a1124914210.css
  • Avoid extra requests by setting cache headers (cacheHeaders)The page has 52 requests that are missing a cache time. Configure a cache time so the browser doesn't need to download them every time. It will save 1.6 MB the next access.0
    Description: The easiest way to make your page fast is to avoid doing requests to the server. Setting a cache header on your server response will tell the browser that it doesn't need to download the asset again during the configured cache time! Always try to set a cache time if the content doesn't change for every request.
    Offenders:
  • https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/main-v3.min.9cea5207d2254160.css
  • https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/common.min.614a75c33608de2a.css
  • https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/site/main-page-v...29a1124914210.css
  • https://static-basket-01.wbbasket.ru/vol0/i/v3/header/logoWb.svg
  • https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1743586290823995101.webp
  • https://static-basket-01.wbbasket.ru/vol0/i/blank.gif
  • https://static-basket-01.wbbasket.ru/vol0/j/app.min.ad19a657450fb2cc.js
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/index.min.aa870ba300f60fe3.js
  • https://static-basket-01.wbbasket.ru/vol0/j/swiper.min.7a55dc87e84f5c3f.js
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/banners.min.fa5c594041669961.js
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/lazyBlockLoader.min.6623456650f0eac0.js
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.tooltip.min.427c93e1900719eb.js
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.shortDeliveries.m...74ef15a1f2f942.js
  • https://static-basket-01.wbbasket.ru/vol0/i/v3/apps/qr-apps.svg
  • https://static-basket-01.wbbasket.ru/vol0/r/js-templates-ru-ru.10.0.58.js
  • https://static-basket-01.wbbasket.ru/vol0/r/route-data-ru.10.0.58.js
  • https://static-basket-01.wbbasket.ru/vol0/l/als-hauss-vf.woff2
  • https://static-basket-01.wb.ru/vol1/global-payment/default-payment.json
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/services/orderService.min.1ae4b06e459a9146.js
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/services/wbxOrderService.min.a49817e336a3df91.js
  • https://static-basket-01.wbbasket.ru/vol0/data/settings-front-ru.json.hash
  • https://static-basket-01.wbbasket.ru/vol0/data/promotion-creatives.json.hash
  • https://static-basket-01.wbbasket.ru/vol0/data/cargo-delivery-stores-v2.json
  • https://static-basket-01.wbbasket.ru/vol0/data/stores-data.json
  • https://static-basket-01.wbbasket.ru/vol0/data/promotion-creatives.json
  • https://static-basket-01.wbbasket.ru/vol0/data/settings-front-ru.json
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/searchInput/suggestionsH...1f418cdf2364df.js
  • https://static-basket-01.wbbasket.ru/vol0/t/jst/spahome-ru-ru.34c9e63907252df4.json
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/models/home.min.e2f43dfe2689bab7.js
  • https://www.wildberries.ru/manifestv2.json
  • https://user-geo-data.wildberries.ru/get-geo-info...s.ru/get-geo-info
  • https://www.wildberries.ru/icon.svg
  • https://banners-website.wildberries.ru/public/v1/banners...public/v1/banners
  • https://static-basket-01.wbbasket.ru/vol0/t/jst/catalogcard-ru-ru.801a44a5dcb78f19.json
  • https://static-basket-01.wbbasket.ru/vol0/t/jst/catalogcore-ru-ru.b3a09120c910d559.json
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.searchTags.min.8e915a967b6c8579.js
  • https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/catalog_v2/goodsCatalog/...146221c01113f8.js
  • https://www.wildberries.ru/webapi/api/home/seo
  • https://www.wildberries.ru/favicon.ico
  • https://static-basket-01.wbbasket.ru/vol0/data/adult-subjects.json
  • https://www.wildberries.ru/android-icon-144x144.png
  • https://static-basket-01.wbbasket.ru/vol0/data/main-menu-ru-ru-v3.json
  • https://static-basket-01.wbbasket.ru/vol0/t/jst/menutoptmpl-ru-ru.d7da992fc1c000da.json
  • https://banners-website.wildberries.ru/public/v1/banners...public/v1/banners
  • https://banners-website.wildberries.ru/public/v1/banners...public/v1/banners
  • https://www.wildberries.ru/webapi/api/home/seo
  • https://static-basket-01.wbbasket.ru/vol0/data/menu/catalog/ekspress-dostavka.json
  • https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/2880_vesna.webp
  • https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/2880_80_web_222.webp
  • https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/shoes_sale_2880.webp
  • https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/FFD6F187-37E0-490A-B1B6-F40E8B13927D.webp
  • https://static-basket-01.wbbasket.ru/vol0/j/performanceAnalytics.min.a71f5369e38b4055.js
  • Total CSS size shouldn't be too big (cssSize)The total CSS transfer size is 137.7 kB and uncompressed size is 876 kB. That is big and the CSS could most probably be smaller.0
    Description: Delivering a massive amount of CSS to the browser is not the best thing you can do, because it means more work for the browser when parsing the CSS against the HTML and that makes the rendering slower. Try to send only the CSS that is used on that page. And make sure to remove CSS rules when they aren't used anymore.
    Offenders:
    URLTransfer sizeContent size
    https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/main-v3.min.9cea5207d2254160.css 76.9 KB497.2 KB
    https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/common.min.614a75c33608de2a.css 51.9 KB315.5 KB
    https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/site/main-page-v...29a1124914210.css 5.7 KB42.7 KB
    The favicon should be small and cacheable (favicon)The favicon size is 16.1 kB bytes. That's quite big, can you make it smaller? The favicon has no cache time. 0
    Description: It is easy to make the favicon big but please avoid doing that, because every browser will then perform an unnecessarily large download. And make sure the cache headers are set for a long time for the favicon. It is easy to miss since it's another content type.
    Offenders:
  • https://www.wildberries.ru/favicon.ico
  • Total JavaScript size shouldn't be too big (javascriptSize)The total JavaScript transfer size is 295.7 kB and the uncompressed size is 1.1 MB. This is totally crazy! There is really room for improvement here. 0
    Description: A lot of JavaScript often means you are downloading more than you need. How complex is the page and what can the user do on the page? Do you use multiple JavaScript frameworks?
    Offenders:
    URLTransfer sizeContent size
    https://static-basket-01.wbbasket.ru/vol0/j/app.min.ad19a657450fb2cc.js 42.2 KB108.9 KB
    https://static-basket-01.wbbasket.ru/vol0/j/spa/index.min.aa870ba300f60fe3.js 135.7 KB541.4 KB
    https://static-basket-01.wbbasket.ru/vol0/j/swiper.min.7a55dc87e84f5c3f.js 26.6 KB103.4 KB
    https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/banners.min.fa5c594041669961.js 3.9 KB15.4 KB
    https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/lazyBlockLoader.min.6623456650f0eac0.js 382 B801 B
    https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.tooltip.min.427c93e1900719eb.js 2.2 KB8.0 KB
    https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.shortDeliveries.m...74ef15a1f2f942.js 1.4 KB4.8 KB
    https://static-basket-01.wbbasket.ru/vol0/r/js-templates-ru-ru.10.0.58.js 1.8 KB5.7 KB
    https://static-basket-01.wbbasket.ru/vol0/r/route-data-ru.10.0.58.js 17.7 KB109.9 KB
    https://static-basket-01.wbbasket.ru/vol0/j/spa/services/orderService.min.1ae4b06e459a9146.js 8.7 KB26.0 KB
    https://static-basket-01.wbbasket.ru/vol0/j/spa/services/wbxOrderService.min.a49817e336a3df91.js 11.4 KB36.0 KB
    https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/searchInput/suggestionsH...1f418cdf2364df.js 2.1 KB5.3 KB
    https://static-basket-01.wbbasket.ru/vol0/j/spa/models/home.min.e2f43dfe2689bab7.js 7.4 KB24.5 KB
    https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.searchTags.min.8e915a967b6c8579.js 525 B745 B
    https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/catalog_v2/goodsCatalog/...146221c01113f8.js 20.6 KB97.0 KB
    https://static-basket-01.wbbasket.ru/vol0/j/performanceAnalytics.min.a71f5369e38b4055.js 6.2 KB18.6 KB
    Avoid using incorrect mime types (mimeTypes)The page has 4 misconfigured mime types. 96
    Description: It's not a great idea to let browsers guess content types (content sniffing), in some cases it can actually be a security risk.
    Offenders:
  • https://static-basket-01.wbbasket.ru/vol0/data/settings-front-ru.json
  • https://www.wildberries.ru/webapi/logging/jserror
  • https://www.wildberries.ru/webapi/logging/jserror
  • https://www.wildberries.ru/webapi/stats/events
  • Make each CSS response small (optimalCssSize)https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/main-v3.min.9cea5207d2254160.css size is 78.7 kB (78740) and that is bigger than the limit of 14.5 kB. https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/common.min.614a75c33608de2a.css size is 53.1 kB (53146) and that is bigger than the limit of 14.5 kB. Try to make the CSS files fit into 14.5 KB.80
    Description: Make CSS responses small to fit into the magic number TCP window size of 14.5 KB. The browser can then download the CSS faster and that will make the page start rendering earlier.
    Offenders:
    URLTransfer sizeContent size
    https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/main-v3.min.9cea5207d2254160.css 76.9 KB497.2 KB
    https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/common.min.614a75c33608de2a.css 51.9 KB315.5 KB
    Don't use private headers on static content (privateAssets)The page has 6 requests with private headers. Make sure that the assets really should be private and only used by one user. Otherwise, make it cacheable for everyone.40
    Description: If you set private headers on content, that means that the content are specific for that user. Static content should be able to be cached and used by everyone. Avoid setting the cache header to private.
    Offenders:
  • https://www.wildberries.ru/
  • https://www.wildberries.ru/manifestv2.json
  • https://www.wildberries.ru/icon.svg
  • https://www.wildberries.ru/webapi/api/home/seo
  • https://www.wildberries.ru/android-icon-144x144.png
  • https://www.wildberries.ru/webapi/api/home/seo
  • Best practice advice (67)

    TitleAdviceScore
    Cumulative Layout Shift (cumulativeLayoutShift)You have a cumulative layout shift score (0.2158) that needs improvements. It is in the Google Web Vitals needs improvement range, shift higher than 0.1. You should manually check the filmstrip or video and check if it will affect the user.50
    Description: Cumulative Layout Shift measures the sum total of all individual layout shift scores for unexpected layout shift that occur. The metric is measuring visual stability by quantify how often users experience unexpected layout shifts. It is one of Google Web Vitals.
    Meta description (metaDescription)The meta description is too long. It has 162 characters, the recommended max is 15550
    Description: Use a page description to make the page more relevant to search engines.
    Page title (pageTitle)The title is too long by 19 characters. The recommended max is 6050
    Description: Use a title to make the page more relevant to search engines.
    Avoid too many third party requests (thirdParty)The page do more requests to third party domains (43 requests and 1.5 MB) then first party (16 requests and 92.9 kB). The page transfer more bytes from third party domains (1.5 MB) then first party (92.9 kB). The regex .*wildberries.* was used to calculate first/third party requests.0
    Description: Do not load most of your content from third party URLs.
    Avoid unnecessary headers (unnecessaryHeaders)There are 12 responses that sets both a max-age and expires header. There are 12 responses that sets a pragma no-cache header (that is a request header). There are 16 responses that sets a server header. 60
    Description: Do not send headers that you don't need. We look for p3p, cache-control and max-age, pragma, server and x-frame-options headers. Have a look at Andrew Betts - Headers for Hackers talk as a guide https://www.youtube.com/watch?v=k92ZbrY815c or read https://www.fastly.com/blog/headers-we-dont-want.
    Offenders:
  • https://www.wildberries.ru/
  • https://www.wildberries.ru/
  • https://www.wildberries.ru/
  • https://www.wildberries.ru/webapi/stats/pageview
  • https://www.wildberries.ru/webapi/stats/pageview
  • https://www.wildberries.ru/webapi/stats/pageview
  • https://www.wildberries.ru/manifestv2.json
  • https://www.wildberries.ru/manifestv2.json
  • https://www.wildberries.ru/manifestv2.json
  • https://user-geo-data.wildberries.ru/get-geo-info...s.ru/get-geo-info
  • https://www.wildberries.ru/icon.svg
  • https://www.wildberries.ru/icon.svg
  • https://www.wildberries.ru/icon.svg
  • https://banners-website.wildberries.ru/public/v1/banners...public/v1/banners
  • https://www.wildberries.ru/webapi/api/home/seo
  • https://www.wildberries.ru/webapi/api/home/seo
  • https://www.wildberries.ru/webapi/api/home/seo
  • https://www.wildberries.ru/favicon.ico
  • https://www.wildberries.ru/favicon.ico
  • https://www.wildberries.ru/favicon.ico
  • https://www.wildberries.ru/webapi/logging/jserror
  • https://www.wildberries.ru/webapi/logging/jserror
  • https://www.wildberries.ru/webapi/logging/jserror
  • https://www.wildberries.ru/android-icon-144x144.png
  • https://www.wildberries.ru/android-icon-144x144.png
  • https://www.wildberries.ru/android-icon-144x144.png
  • https://www.wildberries.ru/webapi/stats/pageview
  • https://www.wildberries.ru/webapi/stats/pageview
  • https://www.wildberries.ru/webapi/stats/pageview
  • https://banners-website.wildberries.ru/public/v1/banners...public/v1/banners
  • https://banners-website.wildberries.ru/public/v1/banners...public/v1/banners
  • https://www.wildberries.ru/webapi/api/home/seo
  • https://www.wildberries.ru/webapi/api/home/seo
  • https://www.wildberries.ru/webapi/api/home/seo
  • https://www.wildberries.ru/webapi/logging/jserror
  • https://www.wildberries.ru/webapi/logging/jserror
  • https://www.wildberries.ru/webapi/logging/jserror
  • https://www.wildberries.ru/webapi/stats/events
  • https://www.wildberries.ru/webapi/stats/events
  • https://www.wildberries.ru/webapi/stats/events
  • Privacy advice (93)

    TitleAdviceScore
    Set a referrer-policy header to make sure you do not leak user information. (referrerPolicyHeader)Set a referrer-policy header to make sure you do not leak user information.0
    Description: Referrer Policy is a new header that allows a site to control how much information the browser includes with navigations away from a document and should be set by all sites. https://scotthelme.co.uk/a-new-security-header-referrer-policy/.
    Offenders:
  • https://www.wildberries.ru/
  • Set a strict transport header to make sure the user always use HTTPS. (strictTransportSecurityHeader)A strict transport header is set but miss out on setting includeSubDomains90
    Description: The HTTP Strict-Transport-Security response header (often abbreviated as HSTS) lets a web site tell browsers that it should only be accessed using HTTPS, instead of using HTTP. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Strict-Transport-Security.

    Page info

    Page info
    TitleИнтернет-магазин Wildberries: широкий ассортимент товаров - скидки каждый день!
    Width1919
    Height912
    DOM elements853
    Avg DOM depth11
    Max DOM depth18
    Iframes0
    Script tags274
    Local storage41.4 KB
    Session storage273 B
    Network Information API4g
    Resource Hints
    preconnect
    https://static-basket-01.wbbasket.ru/
    https://wb.ru/

    Technologies used to build the page.

    Data collected using Wappalyzer version 6.10.66. With updated code from Webappanalyzer 2024-12-27. Use --browsertime.firefox.includeResponseBodies htmlor --browsertime.chrome.includeResponseBodies htmlto help Wappalyzer find more information about technologies used.

    TechnologyConfidenceCategory
    HSTS 100  Security
    HTTP/3 100  Miscellaneous
    | Browser metrics | Visual Metrics | Largest Contentful Paint | Cumulative Layout Shift | Long Aninimation Frames | 

    Data from run 3

    Visual Metrics

    Browser Metrics

    Google Web Vitals
    Time to first byte (TTFB)76 ms
    First Contentful Paint (FCP)436 ms
    Largest Contentful Paint (LCP)436 ms
    Cumulative Layout Shift (CLS)0.23
    Total Blocking Time (TBT)1.204 s
    First Contentful Paint info
    Elements that needed recalculate style before FCP1077
    Time spent in recalculate style before FCP40.788 ms
    Extra timings
    TTFB76 ms
    First Paint436 ms
    Load Event End584 ms
    Fully loaded3.513 s

    Largest Contentful Paint

    When in time the page main content is rendered (collected using the Largest Contentful Paint API). Read more about Largest Contentful Paint.

    Render time 436 ms
    Element render delay191 ms
    TTFB76 ms
    Resource delay32 ms
    Resource load duration137 ms
    Elements that needed recalculate style before LCP1077
    Time spent in recalculate style before LCP40.788 ms
    Element idbanner_bde769c7-4655-4292-bbb2-dbb2d8fbcea4
    Load time284 ms
    URL https://static-baske...290823995101.webp
    Size (width*height)241920
    DOM path
    <>
    LCP

    The largest contentful paint is highlighted in the image. If no element is highlighted the element was removed before the screenshot or the LCP API couldn't find the element.

    The Largest Contentful Paint API highlighted this image as a part of the LCP.

    LCP

    Detected Cumulative Layout Shift

    0.23015 cumulative layout shift collected from the Cumulative Layout Shift API.

    These HTML elements contribute most to the Cumulative Layout Shifts of the page. The higher score, the more layout shift.

    ScoreHTML Element
    0.20458<div class="header__container"></div>,<div class="simple-menu__item header__currency j-b-header-country"></div>,<div id="mainContainer" class="main__container"></div>,<footer class="footer j-footer footer-ru " id="footer" data-link=" {on 'click' '.j-dropdown-title' ~root.onMenuSelected} {on 'click' '.j-wba-footer-item' ~root.sendStatEvent}" data-jsv="#29^/29^#30^/30^"></footer>
    body > div:eq(0) > header > div,body > div:eq(0) > header > div > div:eq(0) > div > div,body > div:eq(0) > main#body-layout > div#mainContainer,body > div:eq(0) > footer#footer
    0.00986<div id="mainContainer" class="main__container"></div>
    body > div:eq(0) > main#body-layout > div#mainContainer
    0.00656
    0.00489
    0.00289
    0.00137
    0.00001<div class="simple-menu__item header__currency j-b-header-country"></div>
    body > div:eq(0) > header > div > div:eq(0) > div > div
    Layout shift

    The elements that have shifted place is highlighted in the image (that have a higher value than 0.01). If the element shifted outside of the viewport, you will not see it there. It can be hard to understand what content that has shifted, if that's the case, checkout the video or the filmstrip of the run.

    Long Animation Frames

    Read more about the Long Animation Frames API here here.

    The top 10 longest animation frames entries

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    1.141 s1.224 s1.8 ms1.8 ms0 ms
    https://static-basket-01.wbbasket.ru/vol0/j/spa/index.min.aa870ba300f60fe3.js

    Forced Style And Layout Duration: 3 ms

    Invoker:  TimerHandler:setTimeout
    Invoker Type: user-callback
    Window attribution: self
    Source char position: -1

    https://static-basket-01.wbbasket.ru/vol0/j/spa/index.min.aa870ba300f60fe3.js

    Invoker:  IDBOpenDBRequest.onsuccess
    Invoker Type: event-listener
    Window attribution: self
    Source char position: -1

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    52.7 ms92.9 ms13.9 ms13.9 ms0 ms
    https://static-basket-01.wbbasket.ru/vol0/j/spa/index.min.aa870ba300f60fe3.js

    Invoker:  https://static-basket-01.wbbasket.ru/vol0/j/spa/index.min.aa870ba300f60fe3.js
    Invoker Type: classic-script
    Window attribution: self

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    51 ms106.2 ms2 ms2 ms0 ms
    https://static-basket-01.wbbasket.ru/vol0/j/spa/index.min.aa870ba300f60fe3.js

    Forced Style And Layout Duration: 27 ms

    Invoker:  Response.json.then
    Invoker Type: resolve-promise
    Window attribution: self
    Source char position: -1

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    44.3 ms175.1 ms84.2 ms0.1 ms84.1 ms
    No availible script information.
    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    42 ms121.3 ms1.1 ms1 ms0.1 ms
    No availible script information.
    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    17.6 ms100.5 ms1 ms1 ms0 ms
    https://static-basket-01.wbbasket.ru/vol0/j/spa/index.min.aa870ba300f60fe3.js

    Forced Style And Layout Duration: 15 ms

    Invoker:  Response.json.then
    Invoker Type: resolve-promise
    Window attribution: self
    Source char position: -1

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    0 ms51.7 ms1.6 ms1.5 ms0.1 ms
    https://static-basket-01.wbbasket.ru/vol0/j/app.min.ad19a657450fb2cc.js

    Invoker:  https://static-basket-01.wbbasket.ru/vol0/j/app.min.ad19a657450fb2cc.js
    Invoker Type: classic-script
    Window attribution: self

    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    0 ms100.1 ms0.8 ms0.8 ms0 ms
    No availible script information.
    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    0 ms100.3 ms1.6 ms1.6 ms0 ms
    No availible script information.
    Blocking duration Work durationRender durationPreLayout DurationStyle And Layout Duration
    0 ms100.1 ms1 ms1 ms0 ms
    No availible script information.

    Server timings

    There are no Server Timings.

    Custom metrics collected through JavaScript

    There are no custom configured scripts.

    Extra metrics collected using scripting

    There are no custom extra metrics from scripting.

    | Summary  | Largest responses  | Requests and sizes per content type  | Data per domain | Expires and last modified statistics  | Requests loaded after onLoad event  | Render blocking requests  | 

    PageXray

    How the page is built.

    Summary
    HTTP versionHTTP/2.0
    Total requests59
    Total domains5
    Total transfer size1.5 MB
    Total content size8.3 MB
    Responses missing compression34
    Number of cookies0
    Third party cookies0
    Requests per response code
    20058
    2041

    Largest assets on the page (by transfer size)

    Requests and sizes per content type

    ContentHeader SizeTransfer SizeContent SizeRequests
    html0 b19.6 KB90.1 KB1
    css0 b134.5 KB855.4 KB3
    javascript0 b288.8 KB1.1 MB16
    image0 b588.5 KB587.1 KB7
    font0 b134.5 KB134.4 KB1
    svg0 b18.0 KB81.9 KB3
    json0 b354.2 KB5.5 MB21
    plain0 b338 B32 B2
    other0 b0 b0 b4
    favicon0 b15.7 KB15.0 KB1
    Total0 b1.5 MB8.3 MB59

    Data per domain

    DomainTotal download timeTransfer SizeContent SizeRequests
    www.wildberries.ru560 ms62.4 KB138.1 KB12
    static-basket-01.wbbasket.ru3.227 s1.4 MB8.0 MB42
    static-basket-01.wb.ru1.140 s415 B323 B1
    user-geo-data.wildberries.ru181 ms617 B369 B1
    banners-website.wildberries.ru492 ms27.8 KB198.1 KB3

    Expires and last modified statistics

    typeminmedianmax
    Expires0 seconds0 seconds0 seconds
    Last modified22 seconds2 weeks45 weeks

    Requests loaded after onLoad event

    Included requests done after load event end.

    ContentTransfer SizeRequests
    html0 b0
    css0 b0
    javascript36.7 KB5
    image506.5 KB5
    font0 b0
    json134.9 KB16
    svg1.4 KB1
    favicon15.7 KB1
    other0 b3
    Total695.2 KB31

    Requests loaded after onContentLoad

    Includes requests done after DOM content loaded.

    ContentTransfer SizeRequests
    html0 b0
    css0 b0
    javascript36.7 KB5
    image506.5 KB5
    font0 b0
    plain338 B2
    json353.8 KB20
    other0 b4
    svg1.4 KB1
    favicon15.7 KB1
    Total914.5 KB38

    Render blocking requests

    Render blocking information directly from Chrome.

    BlockingIn body parser blockingPotentially blocking
    390

    Render information

    CPU Long Tasks | CPU Time Spent | CPU Time Spent Per Request | CPU Time Per Tool/Domain | 

    CPU

    Download the Chrome trace log and drag and drop it into Developer Tools / Performance in Chrome.

    Long Tasks

    Collected using the Long Task API. A long task is a task that take 50 milliseconds or more.

    TypeQuantityTotal duration (ms)
    Total Blocking Time 1204
    Max Potential First Input Delay 1189
    Long Tasks before First Paint2177
    Long Tasks before First Contentful Paint2177
    Long Tasks before Largest Contentful Paint2177
    Long Tasks after Load Event End31354
    Total Long Tasks51531

    CPU last long task happened at 2.953 s

    Individual Long Tasks

    namestartTimedurationcontainerIdcontainerNamecontainerSrccontainerType
    unknown25489window
    self40188window
    self8291189window
    self253866window
    unknown295399window

    CPU time spent

    Calculated using Tracium.

    Categories (ms)
    parseHTML49
    styleLayout189
    paintCompositeRender18
    scriptParseCompile1
    scriptEvaluation1581
    garbageCollection41
    other1098
    Events (ms)
    RunMicrotasks1430
    RunTask1054
    v8.run119
    UpdateLayoutTree101
    Layout80
    ParseHTML36
    FunctionCall14
    V8.GC_SCAVENGER_SCAVENGE_PARALLEL14
    PrePaint11

    Time spent per request

    URLCPU time (ms)
    https://static-basket-01.wbbasket.ru/vol0/j/spa/index.min.aa870ba300f60fe3.js100
    https://static-basket-01.wbbasket.ru/vol0/j/app.min.ad19a657450fb2cc.js30

    CPU time spent

    Tool/domainTime (ms)
    static-basket-01.wbbasket.ru129.9
    | Categories | | First vs third | 

    Third party

    Third party requests categorised by Third party web version 0.26.2.

    CategoryRequests
    CategoryNumber of tools

    Unmatched third party domains

    Here's a list of domains that didn't match any tool in Third party web. If you are sure they are third party domains, please do a PR to that project. You can also fine tune the list using --firstParty.

    static-basket-01.wbbasket.ru
    static-basket-01.wb.ru

    First party requests and sizes per content type

    Calculated using .*wildberries.* (use --firstParty to configure).

    ContentHeader SizeTransfer SizeContent SizeRequests
    html0 b19.6 KB90.1 KB1
    css0 b0 b0 b0
    javascript0 b0 b0 b0
    image0 b16.7 KB16.1 KB1
    font0 b0 b0 b0
    json0 b37.3 KB213.9 KB9
    svg0 b1.4 KB1.5 KB1
    favicon0 b15.7 KB15.0 KB1
    other0 b0 b0 b3
    TotalN/A90.7 KB336.6 KB16

    Third party requests and sizes per content type

    ContentHeader SizeTransfer SizeContent SizeRequests
    html0 b0 b0 b0
    css0 b134.5 KB855.4 KB3
    javascript0 b288.8 KB1.1 MB16
    image0 b571.7 KB571.0 KB6
    font0 b134.5 KB134.4 KB1
    svg0 b16.7 KB80.4 KB2
    json0 b316.9 KB5.3 MB12
    plain0 b338 B32 B2
    other0 b0 b0 b1
    TotalN/A1.4 MB8.0 MB43

    Axe

    Axe is an accessibility testing engine for websites and other HTML-based user interfaces. Tested using axe-core version 4.10.2. Read more about axe-core .

    Violations

    Median number of violations for all the runs. Check each individual run to see all the violations.

    TypeViolations (median)
    Critical 0 (0 issues)
    Serious1 (19 issues)
    Moderate2 (34 issues)
    Minor0 (0 issues)