Run 3 summary

Summary

Metric	Value
Page metrics
Performance score	61
Total page size	4.0 MB
Requests	125
Timing metrics
TTFB	20 ms
First Paint	171 ms
Fully Loaded	6.979 s
Google Web Vitals
TTFB	20 ms
First Contentful Paint (FCP)	171 ms
Largest Contentful Paint (LCP)	119 ms
Cumulative Layout Shift (CLS)	0.09
104 ms
Total Blocking Time	1.029 s
Max Potential FID	746 ms
CPU metrics
CPU long tasks	2
CPU last long task happens at	1.858 s
Visual Metrics
First Visual Change	300 ms
Speed Index	2.051 s
Visual Complete 85%	3.133 s
Visual Complete 99%	3.133 s
Last Visual Change	3.133 s

Waterfall

Filmstrip

Use--filmstrip.showAll to show all filmstrips.

0 s

0.2 sLCP <> banner_02d9647e-4380-46e4-8ffb-f19276a67971 119 msDOM Content Loaded Time 165 msFirst Contentful Paint 171 msLayout Shift 0.00048 177 msPage Load Time 183 ms

0.3 sLayout Shift 0.00001 296 msCPU Long Task duration 746 msFirst Visual Change 300 ms

0.4 s

0.5 s

0.6 s

0.8 s

0.9 s

1.1 sLayout Shift 0.00047 1.061 s

1.2 sLayout Shift 0.00232 1.162 s

1.3 sLayout Shift 0.00098 1.264 s

1.5 sLayout Shift 0.00986 1.429 s

1.7 sLayout Shift 0.07746 1.679 s

1.8 s

1.9 sLayout Shift 0.00007 1.832 sLayout Shift 0.00005 1.855 sCPU Long Task duration 383 ms

2.1 s

2.4 s

3 s

3.2 sLast Visual Change 3.133 sVisual Complete 85% 3.133 sVisual Complete 95% 3.133 sVisual Complete 99% 3.133 s

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.

Coach score

• Total score 72
• Performance score 61
• Privacy score 93
• Best practice score 75

Performance advice (61)

Show/hide details

Title	Advice	Score
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.f1fa208dccf55cd6.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.10.0.51.2.js https://static-basket-01.wbbasket.ru/vol0/r/route-data-ru.10.0.51.2.js
Don't scale images in the browser (avoidScalingImages)	The page has 37 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.	0
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/wb_koshelek_cyber_2880_1.jpg https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/2880_domoy-bolshuyu-pokupku.jpg https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/cm_2880x336.jpg https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/cm_2880x336.jpg https://basket-02.wbbasket.ru/vol160/part16001/16001942/images/c516x688/1.webp https://basket-12.wbbasket.ru/vol1712/part171217/171217595/images/c516x688/1.webp https://basket-02.wbbasket.ru/vol255/part25534/25534940/images/c516x688/1.webp https://basket-02.wbbasket.ru/vol162/part16274/16274185/images/c516x688/1.webp https://basket-15.wbbasket.ru/vol2404/part240451/240451299/images/c516x688/1.webp https://basket-04.wbbasket.ru/vol591/part59123/59123446/images/c516x688/1.webp https://basket-12.wbbasket.ru/vol1822/part182271/182271771/images/c516x688/1.webp https://basket-11.wbbasket.ru/vol1609/part160970/160970976/images/c516x688/1.webp https://basket-15.wbbasket.ru/vol2235/part223596/223596229/images/c516x688/1.webp https://basket-05.wbbasket.ru/vol939/part93977/93977558/images/c516x688/1.webp https://basket-02.wbbasket.ru/vol275/part27541/27541349/images/c516x688/1.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736947074329243570.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736947109689294031.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736947136686720349.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736947152407606781.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736956170848126194.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736956477816522630.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736947166442619775.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736947180012822281.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736973903248919176.webp https://basket-14.wbbasket.ru/vol2171/part217102/217102091/images/c516x688/1.webp https://basket-11.wbbasket.ru/vol1606/part160656/160656117/images/c516x688/1.webp https://basket-02.wbbasket.ru/vol154/part15425/15425654/images/c516x688/1.webp https://basket-01.wbbasket.ru/vol109/part10932/10932709/images/c516x688/1.webp https://basket-14.wbbasket.ru/vol2067/part206720/206720964/images/c516x688/1.webp https://basket-12.wbbasket.ru/vol1893/part189328/189328347/images/c516x688/1.webp https://basket-09.wbbasket.ru/vol1201/part120150/120150877/images/c516x688/1.webp https://basket-05.wbbasket.ru/vol779/part77987/77987512/images/c516x688/1.webp https://basket-10.wbbasket.ru/vol1560/part156061/156061614/images/c516x688/1.webp https://basket-12.wbbasket.ru/vol1810/part181009/181009738/images/c516x688/1.webp https://basket-15.wbbasket.ru/vol2317/part231716/231716691/images/c516x688/1.webp https://basket-02.wbbasket.ru/vol155/part15512/15512141/images/c516x688/1.webp
Avoid CPU Long Tasks (longTasks)	The page has 2 CPU long tasks with the total of 1.129 s. The total blocking time is 1.029 s . 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.	60
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: self self
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 67 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 3.1 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/1727763822887620486.jpg 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.f1fa208dccf55cd6.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/i/v3/apps/qr-apps.svg 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.10.0.51.2.js https://static-basket-01.wbbasket.ru/vol0/r/route-data-ru.10.0.51.2.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/promotion-creatives.json 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/settings-front-ru.json https://www.wildberries.ru/icon.svg 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://www.wildberries.ru/icon.svg https://www.wildberries.ru/manifestv2.json https://www.wildberries.ru/favicon.ico https://static-basket-01.wbbasket.ru/vol0/t/jst/spahome-ru-ru.34c9e63907252df4.json https://www.wildberries.ru/android-icon-144x144.png https://user-geo-data.wildberries.ru/get-geo-info...s.ru/get-geo-info https://banners-website.wildberries.ru/public/v1/banners...public/v1/banners https://static-basket-01.wbbasket.ru/vol0/t/jst/catalogcard-ru-ru.e738ef38d29ed039.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://static-basket-01.wbbasket.ru/vol0/j/spa/modules/catalog/xCatalogData.min.2490df4648a40934.js https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/catalog_v2/providers/xCa...f8ba76f0ade4d9.js https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/userInfo/userInfoRequest...1e7d1aa1ab26f5.js https://www.wildberries.ru/webapi/api/home/seo 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/cm_2880x336.jpg https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/wb_koshelek_cyber_2880_1.jpg https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/2880_domoy-bolshuyu-pokupku.jpg https://recom.wb.ru/personal/ru/common/v5/search.../common/v5/search https://recom.wb.ru/personal/ru/common/v5/search.../common/v5/search https://static-basket-01.wbbasket.ru/vol0/j/spa/services/feedbacks/feedbacksPaym...52e80756a6a35a.js https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/lazyBlockLoader.min.f9571df382b5a066.js https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736947074329243570.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736947109689294031.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736947136686720349.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736947152407606781.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736956170848126194.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736956477816522630.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736947166442619775.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736947180012822281.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1736973903248919176.webp https://static-basket-01.wbbasket.ru/vol0/j/performanceAnalytics.min.a71f5369e38b4055.js
Long cache headers is good (cacheHeadersLong)	The page has 24 requests that have a shorter cache time than 30 days (but still a cache time).	76
Description: Setting a cache header is good. Setting a long cache header (at least 30 days) is even better beacause then it will stay long in the browser cache. But what do you do if that asset change? Rename it and the browser will pick up the new version.
Offenders: https://a.wb.ru/sdk/sdk.js https://basket-02.wbbasket.ru/vol160/part16001/16001942/images/c516x688/1.webp https://basket-12.wbbasket.ru/vol1712/part171217/171217595/images/c516x688/1.webp https://basket-02.wbbasket.ru/vol255/part25534/25534940/images/c516x688/1.webp https://basket-02.wbbasket.ru/vol162/part16274/16274185/images/c516x688/1.webp https://basket-15.wbbasket.ru/vol2404/part240451/240451299/images/c516x688/1.webp https://basket-04.wbbasket.ru/vol591/part59123/59123446/images/c516x688/1.webp https://basket-12.wbbasket.ru/vol1822/part182271/182271771/images/c516x688/1.webp https://basket-11.wbbasket.ru/vol1609/part160970/160970976/images/c516x688/1.webp https://basket-15.wbbasket.ru/vol2235/part223596/223596229/images/c516x688/1.webp https://basket-05.wbbasket.ru/vol939/part93977/93977558/images/c516x688/1.webp https://basket-02.wbbasket.ru/vol275/part27541/27541349/images/c516x688/1.webp https://basket-14.wbbasket.ru/vol2171/part217102/217102091/images/c516x688/1.webp https://basket-11.wbbasket.ru/vol1606/part160656/160656117/images/c516x688/1.webp https://basket-02.wbbasket.ru/vol154/part15425/15425654/images/c516x688/1.webp https://basket-01.wbbasket.ru/vol109/part10932/10932709/images/c516x688/1.webp https://basket-14.wbbasket.ru/vol2067/part206720/206720964/images/c516x688/1.webp https://basket-12.wbbasket.ru/vol1893/part189328/189328347/images/c516x688/1.webp https://basket-09.wbbasket.ru/vol1201/part120150/120150877/images/c516x688/1.webp https://basket-05.wbbasket.ru/vol779/part77987/77987512/images/c516x688/1.webp https://basket-10.wbbasket.ru/vol1560/part156061/156061614/images/c516x688/1.webp https://basket-12.wbbasket.ru/vol1810/part181009/181009738/images/c516x688/1.webp https://basket-15.wbbasket.ru/vol2317/part231716/231716691/images/c516x688/1.webp https://basket-02.wbbasket.ru/vol155/part15512/15512141/images/c516x688/1.webp
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: URL Transfer size Content size https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/main-v3.min.9cea5207d2254160.css 76.9 KB 497.2 KB https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/common.min.614a75c33608de2a.css 51.9 KB 315.5 KB https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/site/main-page-v...29a1124914210.css 5.7 KB 42.7 KB
The favicon should be small and cacheable (favicon)	The favicon size is 16 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 image size shouldn't be too big (imageSize)	The page total image size is 3.3 MB. It's really big. Is the page using the right format for the images? Can they be lazy loaded? Are they compressed as good as they can be? Make them smaller by using https://imageoptim.com/.	50
Description: Avoid having too many large images on the page. The images will not affect the first paint of the page, but it will eat bandwidth for the user.
Total JavaScript size shouldn't be too big (javascriptSize)	The total JavaScript transfer size is 295.8 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: URL Transfer size Content size https://static-basket-01.wbbasket.ru/vol0/j/app.min.ad19a657450fb2cc.js 42.2 KB 108.9 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/index.min.f1fa208dccf55cd6.js 136.3 KB 543.6 KB https://static-basket-01.wbbasket.ru/vol0/j/swiper.min.7a55dc87e84f5c3f.js 26.6 KB 103.4 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/banners.min.fa5c594041669961.js 3.9 KB 15.4 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/lazyBlockLoader.min.6623456650f0eac0.js 382 B 801 B https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.tooltip.min.427c93e1900719eb.js 2.2 KB 8.0 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.shortDeliveries.m...74ef15a1f2f942.js 1.4 KB 4.8 KB https://static-basket-01.wbbasket.ru/vol0/r/js-templates-ru-ru.10.0.51.2.js 1.8 KB 5.7 KB https://static-basket-01.wbbasket.ru/vol0/r/route-data-ru.10.0.51.2.js 17.7 KB 109.9 KB https://a.wb.ru/sdk/sdk.js 2.1 KB 5.8 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/services/orderService.min.1ae4b06e459a9146.js 8.8 KB 26.0 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/services/wbxOrderService.min.a49817e336a3df91.js 11.4 KB 36.0 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.searchTags.min.8e915a967b6c8579.js 536 B 745 B https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/catalog_v2/goodsCatalog/...146221c01113f8.js 20.6 KB 97.0 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/catalog/xCatalogData.min.2490df4648a40934.js 1.3 KB 5.0 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/catalog_v2/providers/xCa...f8ba76f0ade4d9.js 2.3 KB 7.2 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/userInfo/userInfoRequest...1e7d1aa1ab26f5.js 1.3 KB 4.4 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/services/feedbacks/feedbacksPaym...52e80756a6a35a.js 1016 B 2.0 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/lazyBlockLoader.min.f9571df382b5a066.js 957 B 2.1 KB https://static-basket-01.wbbasket.ru/vol0/j/performanceAnalytics.min.a71f5369e38b4055.js 6.2 KB 18.6 KB
Avoid using incorrect mime types (mimeTypes)	The page has 3 misconfigured mime types.	97
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://points.wb.ru/points-users-api/api/v1/w/promotion/available 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 78.8 kB (78751) 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: URL Transfer size Content size https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/main-v3.min.9cea5207d2254160.css 76.9 KB 497.2 KB https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/common.min.614a75c33608de2a.css 51.9 KB 315.5 KB
Total page size shouldn't be too big (pageSize)	The page total transfer size is 4.2 MB, which is more than the coach limit of 2 MB. That is really big and you need to make it smaller.	0
Description: Avoid having pages that have a transfer size over the wire of more than 2 MB (desktop) and 1 MB (mobile) because that is really big and will hurt performance and will make the page expensive for the user if she/he pays for the bandwidth.
Offenders: URL Transfer size Content size https://www.wildberries.ru/ 15.2 KB 70.5 KB https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/main-v3.min.9cea5207d2254160.css 76.9 KB 497.2 KB https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/spa/common.min.614a75c33608de2a.css 51.9 KB 315.5 KB https://static-basket-01.wbbasket.ru/vol0/s/desktop/style/views/site/main-page-v...29a1124914210.css 5.7 KB 42.7 KB https://static-basket-01.wbbasket.ru/vol0/i/v3/header/logoWb.svg 1.1 KB 2.5 KB https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1727763822887620486.jpg 187.2 KB 187.0 KB https://static-basket-01.wbbasket.ru/vol0/i/blank.gif 111 B 49 B https://static-basket-01.wbbasket.ru/vol0/j/app.min.ad19a657450fb2cc.js 42.2 KB 108.9 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/index.min.f1fa208dccf55cd6.js 136.3 KB 543.6 KB https://static-basket-01.wbbasket.ru/vol0/j/swiper.min.7a55dc87e84f5c3f.js 26.6 KB 103.4 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/banners.min.fa5c594041669961.js 3.9 KB 15.4 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/lazyBlockLoader.min.6623456650f0eac0.js 382 B 801 B https://static-basket-01.wbbasket.ru/vol0/i/v3/apps/qr-apps.svg 15.5 KB 77.9 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.tooltip.min.427c93e1900719eb.js 2.2 KB 8.0 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.shortDeliveries.m...74ef15a1f2f942.js 1.4 KB 4.8 KB https://static-basket-01.wbbasket.ru/vol0/r/js-templates-ru-ru.10.0.51.2.js 1.8 KB 5.7 KB https://static-basket-01.wbbasket.ru/vol0/r/route-data-ru.10.0.51.2.js 17.7 KB 109.9 KB https://static-basket-01.wbbasket.ru/vol0/l/als-hauss-vf.woff2 134.5 KB 134.4 KB https://a.wb.ru/sdk/sdk.js 2.1 KB 5.8 KB https://static-basket-01.wb.ru/vol1/global-payment/default-payment.json 414 B 324 B https://static-basket-01.wbbasket.ru/vol0/j/spa/services/orderService.min.1ae4b06e459a9146.js 8.8 KB 26.0 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/services/wbxOrderService.min.a49817e336a3df91.js 11.4 KB 36.0 KB https://static-basket-01.wbbasket.ru/vol0/data/settings-front-ru.json.hash 180 B 16 B https://static-basket-01.wbbasket.ru/vol0/data/promotion-creatives.json.hash 180 B 16 B https://static-basket-01.wbbasket.ru/vol0/data/settings-front-ru.json 0 b 0 b https://static-basket-01.wbbasket.ru/vol0/data/promotion-creatives.json 746 B 1.4 KB https://static-basket-01.wbbasket.ru/vol0/data/cargo-delivery-stores-v2.json 22.2 KB 114.4 KB https://static-basket-01.wbbasket.ru/vol0/data/stores-data.json 117.9 KB 2.3 MB https://static-basket-01.wbbasket.ru/vol0/data/settings-front-ru.json 1.7 KB 3.9 KB https://a.wb.ru/e/user_id...a.wb.ru/e/user_id 0 b 0 b https://a.wb.ru/e/session_start...u/e/session_start 0 b 0 b https://www.wildberries.ru/ 15.2 KB 70.5 KB https://a.wb.ru/e/pageview....wb.ru/e/pageview 0 b 0 b https://www.wildberries.ru/icon.svg 1.3 KB 1.5 KB https://static-basket-01.wbbasket.ru/vol0/data/settings-front-ru.json.hash 119 B 16 B https://static-basket-01.wbbasket.ru/vol0/data/promotion-creatives.json.hash 119 B 16 B https://a.wb.ru/e/user_id...a.wb.ru/e/user_id 0 b 0 b https://www.wildberries.ru/icon.svg 1.3 KB 1.5 KB https://www.wildberries.ru/manifestv2.json 982 B 1.5 KB https://www.wildberries.ru/favicon.ico 15.6 KB 15.0 KB https://a.wb.ru/e/pageview....wb.ru/e/pageview 0 b 0 b https://static-basket-01.wbbasket.ru/vol0/t/jst/spahome-ru-ru.34c9e63907252df4.json 2.5 KB 11.3 KB https://www.wildberries.ru/webapi/stats/pageview 666 B 38 B https://www.wildberries.ru/android-icon-144x144.png 16.7 KB 16.1 KB https://user-geo-data.wildberries.ru/get-geo-info...s.ru/get-geo-info 617 B 369 B https://banners-website.wildberries.ru/public/v1/banners...public/v1/banners 6.4 KB 43.8 KB https://static-basket-01.wbbasket.ru/vol0/t/jst/catalogcard-ru-ru.e738ef38d29ed039.json 2.9 KB 10.9 KB https://static-basket-01.wbbasket.ru/vol0/t/jst/catalogcore-ru-ru.b3a09120c910d559.json 5.1 KB 22.1 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/customTags/spa.searchTags.min.8e915a967b6c8579.js 536 B 745 B https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/catalog_v2/goodsCatalog/...146221c01113f8.js 20.6 KB 97.0 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/catalog/xCatalogData.min.2490df4648a40934.js 1.3 KB 5.0 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/catalog_v2/providers/xCa...f8ba76f0ade4d9.js 2.3 KB 7.2 KB https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/userInfo/userInfoRequest...1e7d1aa1ab26f5.js 1.3 KB 4.4 KB https://www.wildberries.ru/webapi/api/home/seo 2.9 KB 6.9 KB https://a.wb.ru/e/Screen_V....wb.ru/e/Screen_V 0 b 0 b https://static-basket-01.wbbasket.ru/vol0/data/main-menu-ru-ru-v3.json 71.7 KB 484.1 KB https://static-basket-01.wbbasket.ru/vol0/t/jst/menutoptmpl-ru-ru.d7da992fc1c000da.json 1.7 KB 7.5 KB https://a.wb.ru/e/pageview....wb.ru/e/pageview 0 b 0 b https://www.wildberries.ru/webapi/stats/pageview 666 B 38 B https://banners-website.wildberries.ru/public/v1/banners...public/v1/banners 6.4 KB 43.8 KB https://banners-website.wildberries.ru/public/v1/banners...public/v1/banners 6.4 KB 43.8 KB https://www.wildberries.ru/webapi/api/home/seo 2.9 KB 6.9 KB https://a.wb.ru/e/Screen_V....wb.ru/e/Screen_V 0 b 0 b https://www.wildberries.ru/webapi/personalinfo 1.2 KB 627 B https://static-basket-01.wbbasket.ru/vol0/data/menu/catalog/ekspress-dostavka.json 11.3 KB 71.4 KB https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/cm_2880x336.jpg 351.3 KB 351.2 KB https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/wb_koshelek_cyber_2880_1.jpg 127.7 KB 127.6 KB https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/bners1/2880_domoy-bolshuyu-pokupku.jpg 313.8 KB 313.6 KB https://recom.wb.ru/personal/ru/common/v5/search.../common/v5/search 38.7 KB 142.2 KB https://recom.wb.ru/personal/ru/common/v5/search.../common/v5/search 37.0 KB 138.2 KB https://a.wb.ru/e/Banner_S....wb.ru/e/Banner_S 0 b 0 b https://a.wb.ru/e/Banner_S....wb.ru/e/Banner_S 0 b 0 b https://static-basket-01.wbbasket.ru/vol0/j/spa/services/feedbacks/feedbacksPaym...52e80756a6a35a.js 1016 B 2.0 KB https://a.wb.ru/e/ec...ps://a.wb.ru/e/ec 0 b 0 b https://points.wb.ru/points-users-api/api/v1/w/promotion/available 0 b 0 b https://points.wb.ru/points-users-api/api/v1/w/promotion/available 342 B 98 B https://static-basket-01.wbbasket.ru/vol0/j/spa/modules/lazyBlockLoader.min.f9571df382b5a066.js 957 B 2.1 KB https://a.wb.ru/e/ec...ps://a.wb.ru/e/ec 0 b 0 b https://points.wb.ru/points-users-api/api/v1/w/promotion/available 497 B 252 B https://basket-02.wbbasket.ru/vol160/part16001/16001942/images/c516x688/1.webp 15.4 KB 14.9 KB https://basket-12.wbbasket.ru/vol1712/part171217/171217595/images/c516x688/1.webp 31.8 KB 31.3 KB 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Don't use private headers on static content (privateAssets)	The page has 8 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.	20
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/ https://www.wildberries.ru/icon.svg https://www.wildberries.ru/icon.svg https://www.wildberries.ru/manifestv2.json https://www.wildberries.ru/android-icon-144x144.png https://www.wildberries.ru/webapi/api/home/seo https://www.wildberries.ru/webapi/api/home/seo

Best practice advice (75)

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Title	Advice	Score
Meta description (metaDescription)	The meta description is too long. It has 162 characters, the recommended max is 155	50
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 60	50
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 (108 requests and 4.1 MB) then first party (17 requests and 96.4 kB). The page transfer more bytes from third party domains (4.1 MB) then first party (96.4 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 14 responses that sets both a max-age and expires header. There are 13 responses that sets a pragma no-cache header (that is a request header). There are 47 responses that sets a server header.	26
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://a.wb.ru/sdk/sdk.js https://a.wb.ru/sdk/sdk.js https://a.wb.ru/e/user_id...a.wb.ru/e/user_id https://a.wb.ru/e/session_start...u/e/session_start https://www.wildberries.ru/ https://www.wildberries.ru/ https://www.wildberries.ru/ https://a.wb.ru/e/pageview....wb.ru/e/pageview https://www.wildberries.ru/icon.svg https://www.wildberries.ru/icon.svg https://www.wildberries.ru/icon.svg https://a.wb.ru/e/user_id...a.wb.ru/e/user_id https://www.wildberries.ru/icon.svg https://www.wildberries.ru/icon.svg https://www.wildberries.ru/icon.svg https://www.wildberries.ru/manifestv2.json https://www.wildberries.ru/manifestv2.json https://www.wildberries.ru/manifestv2.json https://www.wildberries.ru/favicon.ico https://www.wildberries.ru/favicon.ico https://www.wildberries.ru/favicon.ico https://a.wb.ru/e/pageview....wb.ru/e/pageview 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/android-icon-144x144.png https://www.wildberries.ru/android-icon-144x144.png https://www.wildberries.ru/android-icon-144x144.png https://user-geo-data.wildberries.ru/get-geo-info...s.ru/get-geo-info 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://a.wb.ru/e/Screen_V....wb.ru/e/Screen_V https://a.wb.ru/e/pageview....wb.ru/e/pageview 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://a.wb.ru/e/Screen_V....wb.ru/e/Screen_V https://www.wildberries.ru/webapi/personalinfo https://www.wildberries.ru/webapi/personalinfo https://www.wildberries.ru/webapi/personalinfo https://recom.wb.ru/personal/ru/common/v5/search.../common/v5/search https://recom.wb.ru/personal/ru/common/v5/search.../common/v5/search https://a.wb.ru/e/Banner_S....wb.ru/e/Banner_S https://a.wb.ru/e/Banner_S....wb.ru/e/Banner_S https://a.wb.ru/e/ec...ps://a.wb.ru/e/ec https://points.wb.ru/points-users-api/api/v1/w/promotion/available https://points.wb.ru/points-users-api/api/v1/w/promotion/available https://a.wb.ru/e/ec...ps://a.wb.ru/e/ec https://points.wb.ru/points-users-api/api/v1/w/promotion/available https://a.wb.ru/e/ec...ps://a.wb.ru/e/ec https://a.wb.ru/e/ec...ps://a.wb.ru/e/ec https://a.wb.ru/e/ec...ps://a.wb.ru/e/ec https://a.wb.ru/e/ec...ps://a.wb.ru/e/ec https://a.wb.ru/e/ec...ps://a.wb.ru/e/ec https://a.wb.ru/e/ec...ps://a.wb.ru/e/ec https://www.wildberries.ru/webapi/stats/events https://www.wildberries.ru/webapi/stats/events https://www.wildberries.ru/webapi/stats/events https://a.wb.ru/e/performance....ru/e/performance https://a.wb.ru/e/performance....ru/e/performance https://a.wb.ru/e/performance....ru/e/performance https://a.wb.ru/e/performance....ru/e/performance https://a.wb.ru/e/performance....ru/e/performance https://a.wb.ru/e/performance....ru/e/performance

Privacy advice (93)

Show/hide details

Title	Advice	Score
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/ 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 includeSubDomains	90
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
Title	Интернет-магазин Wildberries: широкий ассортимент товаров - скидки каждый день!
Width	1904
Height	2992
DOM elements	3652
Avg DOM depth	14
Max DOM depth	20
Iframes	0
Script tags	2042
Local storage	217.1 KB
Session storage	303 B
Network Information API	4g

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.

Technology	Confidence	Category
Nginx 1.24.0	100	Web servers Reverse proxies
HSTS	100	Security
HTTP/3	100	Miscellaneous

Visual Metrics

Browser Metrics

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	119 ms
Elements that needed recalculate style before LCP	1824
Time spent in recalculate style before LCP	65.011 ms
Element id	banner_02d9647e-4380-46e4-8ffb-f19276a67971
Load time	119 ms
URL	https://static-baske...3822887620486.jpg
Size (width*height)	241920
DOM path
<>

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.

Detected Cumulative Layout Shift

0.09170 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.

Score	HTML Element
0.07746	<div id="mainContainer" class="main__container"></div>
body > div:eq(0) > main#body-layout > div#mainContainer
0.00986	<div id="mainContainer" class="main__container"></div>
body > div:eq(0) > main#body-layout > div#mainContainer
0.00232
0.00098
0.00048	<div class="search-catalog__btn-wrap"></div>,<div class="header__navbar-pc navbar-pc hide-mobile j-b-header-menu" id="basketContent"></div>
body > div:eq(0) > header > div > div:eq(1) > div#searchBlock > div:eq(0) > div:eq(1),body > div:eq(0) > header > div > div:eq(1) > div#basketContent
0.00047
0.00007
0.00005
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

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.

Interaction to Next Paint

Interaction to Next Paint (INP) is a metric that try to measure responsiveness. It's useful if you are testing user journeys. Read more about Interaction to Next Paint.

Long Animation Frames

Read more about the Long Animation Frames API here here.

The top 10 longest animation frames entries

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.

CDP Performance

PageXray

How the page is built.

Largest assets on the page (by transfer size)

Requests and sizes per content type

Data per domain

Expires and last modified statistics

Requests loaded after onLoad event

Included requests done after load event end.

Requests loaded after onContentLoad

Includes requests done after DOM content loaded.

Render blocking requests

Render blocking information directly from Chrome.

Render information

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.

CPU last long task happened at 1.858 s

Individual Long Tasks

CPU time spent

Calculated using Tracium.

Time spent per request

CPU time spent

Third party

Third party requests categorised by Third party web version 0.26.2.

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.

First party requests and sizes per content type

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

Third party requests and sizes per content type

Screenshots

afterPageCompleteCheck.png

layoutShift.png

largestContentfulPaint.png

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