Run 1 summary

Summary

Metric	Value
Page metrics
Performance score	57
Total page size	2.2 MB
Requests	128
Timing metrics
TTFB	797 ms
First Paint	2.652 s
Fully Loaded	20.415 s
Google Web Vitals
TTFB	797 ms
First Contentful Paint (FCP)	2.652 s
Largest Contentful Paint (LCP)	11.140 s
Cumulative Layout Shift (CLS)	0.40
Total Blocking Time	1.448 s
Max Potential FID	837 ms
CPU metrics
CPU long tasks	6
CPU last long task happens at	15.062 s
Visual Metrics
First Visual Change	2.633 s
Speed Index	11.750 s
Visual Complete 85%	15.733 s
Visual Complete 99%	15.733 s
Last Visual Change	15.733 s

Waterfall

Filmstrip

Use--filmstrip.showAll to show all filmstrips.

0 s

2.7 sFirst Visual Change 2.633 sFirst Contentful Paint 2.652 s

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4.6 sCPU Long Task duration 93 ms

4.7 sCPU Long Task duration 62 msDOM Content Loaded Time 4.648 s

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5.6 sCPU Long Task duration 61 ms

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7.7 sCPU Long Task duration 837 ms

8.5 s

8.6 sPage Load Time 8.514 sCPU Long Task duration 82 ms

8.7 sLayout Shift 0.26250 8.631 s

9 sLayout Shift 0.00007 8.964 sLayout Shift 0.00012 8.977 sLayout Shift 0.00018 8.994 s

9.1 sLayout Shift 0.00025 9.011 sLayout Shift 0.00032 9.028 sLayout Shift 0.00040 9.045 sLayout Shift 0.00049 9.061 sLayout Shift 0.00059 9.078 sLayout Shift 0.00069 9.095 s

9.2 sLayout Shift 0.00082 9.116 sLayout Shift 0.00094 9.127 sLayout Shift 0.00107 9.154 sLayout Shift 0.00122 9.162 sLayout Shift 0.00137 9.177 sLayout Shift 0.00152 9.197 s

9.3 sLayout Shift 0.00169 9.216 sLayout Shift 0.00185 9.228 sLayout Shift 0.00203 9.244 sLayout Shift 0.00221 9.261 sLayout Shift 0.00239 9.279 sLayout Shift 0.00256 9.296 s

9.4 sLayout Shift 0.00265 9.312 sLayout Shift 0.00269 9.328 sLayout Shift 0.00269 9.345 sLayout Shift 0.00271 9.361 sLayout Shift 0.00273 9.379 sLayout Shift 0.00272 9.395 s

9.5 sLayout Shift 0.00273 9.411 sLayout Shift 0.00273 9.428 sLayout Shift 0.00271 9.445 sLayout Shift 0.00269 9.461 sLayout Shift 0.00268 9.478 sLayout Shift 0.00265 9.495 s

9.6 sLayout Shift 0.00259 9.511 sLayout Shift 0.00240 9.528 sLayout Shift 0.00222 9.545 sLayout Shift 0.00205 9.563 sLayout Shift 0.00187 9.579 sLayout Shift 0.00170 9.594 s

9.7 sLayout Shift 0.00153 9.611 sLayout Shift 0.00138 9.628 sLayout Shift 0.00123 9.645 sLayout Shift 0.00108 9.661 sLayout Shift 0.00095 9.678 sLayout Shift 0.00082 9.695 s

9.8 sLayout Shift 0.00070 9.712 sLayout Shift 0.00060 9.729 sLayout Shift 0.00050 9.745 sLayout Shift 0.00041 9.762 sLayout Shift 0.00032 9.779 sLayout Shift 0.00025 9.796 s

9.9 sLayout Shift 0.00019 9.824 sLayout Shift 0.00012 9.833 sLayout Shift 0.00008 9.846 s

10.2 s

10.5 sLayout Shift 0.00007 10.461 sLayout Shift 0.00012 10.482 sLayout Shift 0.00018 10.496 s

10.6 sLayout Shift 0.00024 10.512 sLayout Shift 0.00032 10.528 sLayout Shift 0.00040 10.547 sLayout Shift 0.00049 10.565 sLayout Shift 0.00059 10.578 sLayout Shift 0.00070 10.595 s

10.7 sLayout Shift 0.00081 10.612 sLayout Shift 0.00094 10.628 sLayout Shift 0.00107 10.644 sLayout Shift 0.00122 10.663 sLayout Shift 0.00137 10.678 sLayout Shift 0.00152 10.695 s

10.8 sLayout Shift 0.00169 10.713 sLayout Shift 0.00185 10.728 sLayout Shift 0.00203 10.748 sLayout Shift 0.00221 10.761 sLayout Shift 0.00239 10.778 sLayout Shift 0.00256 10.794 s

10.9 sLayout Shift 0.00265 10.811 sLayout Shift 0.00268 10.832 sLayout Shift 0.00270 10.846 sLayout Shift 0.00271 10.867 sLayout Shift 0.00272 10.880 sLayout Shift 0.00273 10.894 s

11 sLayout Shift 0.00272 10.912 sLayout Shift 0.00273 10.928 sLayout Shift 0.00271 10.945 sLayout Shift 0.00270 10.960 sLayout Shift 0.00267 10.979 sLayout Shift 0.00265 10.994 s

11.1 sLayout Shift 0.00259 11.011 sLayout Shift 0.00240 11.029 sLayout Shift 0.00222 11.047 sLayout Shift 0.00204 11.062 s

11.2 sLCP <IMG> 11.140 s

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14 s

14.1 s

15.1 sCPU Long Task duration 613 ms

15.8 sLast Visual Change 15.733 sVisual Complete 85% 15.733 sVisual Complete 95% 15.733 sVisual Complete 99% 15.733 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 68
• Performance score 57
• Privacy score 93
• Best practice score 59

Performance advice (57)

Show/hide details

Title	Advice	Score
Avoid slowing down the critical rendering path (avoidRenderBlocking)	The page has 1 blocking requests and 4 in body parser blocking (4 JavaScript and 1 CSS).	60
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/vol2/site/j/app.7c55f47880e103d84bab.js https://static-basket-01.wbbasket.ru/vol2/site/j/lang/ru.17c1b56c748f3ece8ab1.js https://static-basket-01.wbbasket.ru/vol2/site/j/spa/index.7f239ace2fcf8a7bb122.js https://static-basket-01.wbbasket.ru/vol2/site/r/route-data.11-18-1.42845ec3.js
Don't scale images in the browser (avoidScalingImages)	The page has 18 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/vol1/crm-bnrs/poster/ru/anno/1440x40/wibes_2880_mob_3.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1743331846073546319.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/poster/ru/bignew/992x413/992.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/poster/ru/bignew/992x413/992_biznes.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/poster/ru/bignew/992x413/992_413_1.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1743331846073546319.webp https://basket-08.wbbasket.ru/vol1148/part114852/114852471/images/c516x688/1.webp https://basket-12.wbbasket.ru/vol1909/part190936/190936343/images/c516x688/1.webp https://basket-02.wbbasket.ru/vol160/part16082/16082002/images/c516x688/1.webp https://basket-14.wbbasket.ru/vol2067/part206741/206741815/images/c516x688/1.webp https://basket-20.wbbasket.ru/vol3303/part330303/330303658/images/c516x688/1.webp https://basket-10.wbbasket.ru/vol1548/part154859/154859674/images/c516x688/1.webp https://basket-10.wbbasket.ru/vol1584/part158420/158420554/images/c516x688/1.webp https://basket-12.wbbasket.ru/vol1891/part189181/189181799/images/c516x688/1.webp https://static-basket-01.wbbasket.ru/vol2/site/i/v3/footer/download/app-store.webp https://static-basket-01.wbbasket.ru/vol2/site/i/v3/footer/download/google-play.webp https://static-basket-01.wbbasket.ru/vol2/site/i/v3/footer/download/app-gallery.webp https://static-basket-01.wbbasket.ru/vol2/site/i/v3/footer/download/rustore.webp
Have a fast first contentful paint (firstContentfulPaint)	First contentful paint can be improved (2.652 s). It is in the Google Web Vitals needs improvement range, slower than 1.8 seconds.	50
Description: The First Contentful Paint (FCP) metric measures the time from when the page starts loading to when any part of the page content is rendered on the screen. For this metric, "content" refers to text, images (including background images), <svg> elements, or non-white <canvas> elements.
Inline CSS for faster first render (inlineCss)	The page has both inline CSS and CSS requests even though it uses a HTTP/2-ish connection. If you have many users on slow connections, it can be better to only inline the CSS. Run your own tests and check the waterfall graph to see what happens.	95
Description: In the early days of the Internet, inlining CSS was one of the ugliest things you can do. That has changed if you want your page to start rendering fast for your user. Always inline the critical CSS when you use HTTP/1 and HTTP/2 (avoid doing CSS requests that block rendering) and lazy load and cache the rest of the CSS. It is a little more complicated when using HTTP/2. Does your server support HTTP push? Then maybe that can help. Do you have a lot of users on a slow connection and are serving large chunks of HTML? Then it could be better to use the inline technique, becasue some servers always prioritize HTML content over CSS so the user needs to download the HTML first, before the CSS is downloaded.
Have a fast largest contentful paint (largestContentfulPaint)	Largest contentful paint is poor 11.140 s. It is in the Google Web Vitals poor range, slower than 4.5 seconds. You can add fetchPriority="high" to the image to increase the load priority in Chrome.	0
Description: Largest contentful paint is one of Google Web Vitals and reports the render time of the largest image or text block visible within the viewport, relative to when the page first started loading. To be fast according to Google, it needs to render before 2.5 seconds and results over 4 seconds is poor performance.
Offenders: https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1743331846073546319.webp
Avoid CPU Long Tasks (longTasks)	The page has 6 CPU long tasks with the total of 1.748 s. The total blocking time is 1.448 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.	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: self self 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/vol2/site/s/desktop/style/views/spa/main-v3...4c482632d5489.css https://static-basket-01.wbbasket.ru/vol2/site/app/modal.75158a0f0d1d2f230958.css https://static-basket-01.wbbasket.ru/vol2/site/app/generalPreloader.afe2ccfd4a81a33f9c85.css
Avoid extra requests by setting cache headers (cacheHeaders)	The page has 82 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 1.7 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/vol2/site/f/als-hauss-vf.woff2 https://static-basket-01.wbbasket.ru/vol2/site/s/desktop/style/views/spa/main-v3...4c482632d5489.css https://static-basket-01.wbbasket.ru/vol2/site/j/app.7c55f47880e103d84bab.js https://static-basket-01.wbbasket.ru/vol2/site/j/lang/ru.17c1b56c748f3ece8ab1.js https://static-basket-01.wbbasket.ru/vol2/site/j/spa/index.7f239ace2fcf8a7bb122.js https://static-basket-01.wbbasket.ru/vol2/site/r/route-data.11-18-1.42845ec3.js https://static-basket-01.wbbasket.ru/vol2/site/t/jst/cookies.6dfe33e4.json https://static-basket-01.wbbasket.ru/vol1/global-payment/default-payment.json https://static-basket-01.wbbasket.ru/vol2/site/j/spa/services/orderService.2c21321717279f1b0a8c.js https://static-basket-01.wbbasket.ru/vol2/site/j/spa/services/wbxOrderService.3f...8c05fd7b44ed8c.js https://static-basket-01.wbbasket.ru/vol2/site/t/jst/menuLk.b38253b0.json https://static-basket-01.wbbasket.ru/vol2/site/t/jst/mobileMenuTemp.42883d4f.json https://static-basket-01.wbbasket.ru/vol2/site/t/jst/footer.413388ce.json https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/searchInput/suggest...4925c66d180c76.js https://static-basket-01.wbbasket.ru/vol2/site/j/swiper.3f1f360c9d33874fe5c5.js https://static-basket-01.wbbasket.ru/vol2/site/t/jst/spahome.a5bf1784.json https://static-basket-01.wbbasket.ru/vol2/site/s/desktop/style/views/site/main-p...5f8e97eb6083c.css https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/banners.473830efc3430176d1b8.js https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/lazyBlockLoader....90a678955c61ae.js https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/spa.tooltip.d1551932ebb94b589950.js https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/spa.shortDeliver...9f53140a4c37eb.js https://static-basket-01.wbbasket.ru/vol2/site/j/spa/models/home.6626f37bbe68cda27911.js https://user-geo-data.wildberries.ru/get-geo-info...s.ru/get-geo-info https://static-basket-01.wbbasket.ru/vol0/data/stores-data.json https://static-basket-01.wbbasket.ru/vol2/site/t/jst/uploadImageForSearchByImagePopUp.29d85a1d.json https://static-basket-01.wbbasket.ru/vol2/site/s/spa/modules/uploadImageForSearc...ae50b44a28588.css https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/uploadImageForSearc...db4e8069618937.js https://static-basket-01.wbbasket.ru/vol0/data/promotion-creatives.json.hash https://static-basket-01.wbbasket.ru/vol2/site/i/v3/footer/download/app-store.webp https://static-basket-01.wbbasket.ru/vol2/site/i/v3/footer/download/google-play.webp https://static-basket-01.wbbasket.ru/vol2/site/i/v3/footer/download/app-gallery.webp https://static-basket-01.wbbasket.ru/vol2/site/i/v3/footer/download/rustore.webp https://banners-website.wildberries.ru/public/v2/banners...public/v2/banners https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/catalog/xCatalogDat...3d627a6c648066.js https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/catalog_v2/provider...b3013822024ea4.js https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/userInfo/userInfoRe...77394b2b922f93.js https://static-basket-01.wbbasket.ru/vol2/site/t/jst/catalogCard.ca941b61.json https://static-basket-01.wbbasket.ru/vol2/site/t/jst/catalogCore.239e7083.json https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/spa.searchTags.c...ec4113398294c9.js https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/catalog_v2/goodsCat...29d0e0146e7d80.js https://www.wildberries.ru/webapi/api/home/seo https://static-basket-01.wbbasket.ru/vol2/site/app/react-vendors.4463b5fe473e03f21749.js https://static-basket-01.wbbasket.ru/vol2/site/app/mo-icons.82b0e5d82416af73ae55.js https://static-basket-01.wbbasket.ru/vol2/site/app/mo-ui.56c8afa090f39783c39e.js https://static-basket-01.wbbasket.ru/vol2/site/app/modal-component.f8c024614931875ef1ad.js https://static-basket-01.wbbasket.ru/vol2/site/app/generalPreloader-component.b1...749655f40cf947.js https://static-basket-01.wbbasket.ru/vol2/site/app/modal.75158a0f0d1d2f230958.css https://static-basket-01.wbbasket.ru/vol2/site/app/generalPreloader.afe2ccfd4a81a33f9c85.css https://static-basket-01.wbbasket.ru/vol2/site/app/14627.eb35aeacc24e8988fd4a.js https://static-basket-01.wbbasket.ru/vol2/site/app/37266.1262e74f2a4dd51ea1a8.js https://static-basket-01.wbbasket.ru/vol2/site/app/react-app.42e4645df7160c309213.js https://static-basket-01.wbbasket.ru/vol0/data/promotion-creatives.json https://static-basket-01.wbbasket.ru/vol2/site/j/spa/services/parseToken/parseTo...378e54035cf6d6.js https://pow.wildberries.ru/api/v1/js-settings https://www.wildberries.ru/manifestv2.json https://www.wildberries.ru/icon.svg https://static-basket-01.wbbasket.ru/vol2/site/i/blank.gif https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/poster/ru/anno/1440x40/wibes_2880_mob_3.webp https://www.wildberries.ru/favicon.ico https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1743331846073546319.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/poster/ru/bignew/992x413/992_413_1.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/poster/ru/bignew/992x413/v_2_1_992wb.webp https://www.wildberries.ru/android-icon-144x144.png https://static-basket-01.wbbasket.ru/vol2/site/t/jst/onlineChatPopup.5577172b.json https://static-basket-01.wbbasket.ru/vol2/site/s/desktop/style/modules/popups/ch...4cd109248f542.css https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/onlineChat/onlineCh...47791157e0d4ac.js https://static-basket-01.wbbasket.ru/vol2/site/j/performanceAnalytics.8b8fd2c8405863b4e6ea.js https://static-basket-01.wbbasket.ru/vol2/site/t/jst/onlineChat.2c163d71.json https://static-basket-01.wbbasket.ru/vol2/site/s/desktop/style/modules/popups/ch...1d6fe85ff2d74.css https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/spa.contextMenu....696f23cf02cb02.js https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/onlineChat/onlineCh...95f079c3388771.js https://static-basket-01.wbbasket.ru/vol2/site/j/spa/services/storageService.b23debd027e49c291b23.js https://chat-prod.wildberries.ru/api/support/v1/unauth/messages https://recom.wb.ru/personal/ru/common/v5/search.../common/v5/search https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/lazyBlockLoader.c66511f48cf5a64f33e7.js https://static-basket-01.wbbasket.ru/vol0/data/main-menu-ru-ru-v3.json https://static-basket-01.wbbasket.ru/vol2/site/t/jst/menuTopTmpl.dac4c2eb.json https://catalog.wb.ru/menu/v11/api?locale=ru&lang=ru&id=131289&collapse&dest=-1257786 https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/poster/ru/bignew/992x413/992.webp https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/poster/ru/bignew/992x413/992_biznes.webp https://static-basket-01.wbbasket.ru/vol0/data/all-poo-v10.json.hash https://static-basket-01.wbbasket.ru/vol0/data/all-poo-fr-v10.json
Long cache headers is good (cacheHeadersLong)	The page has 12 requests that have a shorter cache time than 30 days (but still a cache time).	88
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://pow.wildberries.ru/scripts/d.js?7eec71a7 https://pow.wildberries.ru/scripts/wasm_exec.js?5c7aa861 https://pow.wildberries.ru/scripts/solve.wasm?7b450d09 https://basket-08.wbbasket.ru/vol1148/part114852/114852471/images/c516x688/1.webp https://basket-12.wbbasket.ru/vol1909/part190936/190936343/images/c516x688/1.webp https://basket-02.wbbasket.ru/vol160/part16082/16082002/images/c516x688/1.webp https://basket-14.wbbasket.ru/vol2067/part206741/206741815/images/c516x688/1.webp https://basket-20.wbbasket.ru/vol3303/part330303/330303658/images/c516x688/1.webp https://basket-10.wbbasket.ru/vol1548/part154859/154859674/images/c516x688/1.webp https://basket-10.wbbasket.ru/vol1584/part158420/158420554/images/c516x688/1.webp https://basket-12.wbbasket.ru/vol1891/part189181/189181799/images/c516x688/1.webp
Total CSS size shouldn't be too big (cssSize)	The total CSS transfer size is 104.9 kB and uncompressed size is 702 kB. That is big and the CSS could most probably be smaller.	50
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/vol2/site/s/desktop/style/views/spa/main-v3...4c482632d5489.css 81.7 KB 542.5 KB https://static-basket-01.wbbasket.ru/vol2/site/s/desktop/style/views/site/main-p...5f8e97eb6083c.css 6.0 KB 45.1 KB https://static-basket-01.wbbasket.ru/vol2/site/s/spa/modules/uploadImageForSearc...ae50b44a28588.css 1.1 KB 4.6 KB https://static-basket-01.wbbasket.ru/vol2/site/app/modal.75158a0f0d1d2f230958.css 603 B 1.4 KB https://static-basket-01.wbbasket.ru/vol2/site/app/generalPreloader.afe2ccfd4a81a33f9c85.css 917 B 6.2 KB https://static-basket-01.wbbasket.ru/vol2/site/s/desktop/style/modules/popups/ch...4cd109248f542.css 10.4 KB 76.9 KB https://static-basket-01.wbbasket.ru/vol2/site/s/desktop/style/modules/popups/ch...1d6fe85ff2d74.css 1.7 KB 9.0 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 933.9 kB. 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 608.9 kB and the uncompressed size is 2.3 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/vol2/site/j/app.7c55f47880e103d84bab.js 64.8 KB 190.5 KB https://static-basket-01.wbbasket.ru/vol2/site/j/lang/ru.17c1b56c748f3ece8ab1.js 83.5 KB 359.4 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/index.7f239ace2fcf8a7bb122.js 142.9 KB 559.5 KB https://static-basket-01.wbbasket.ru/vol2/site/r/route-data.11-18-1.42845ec3.js 16.7 KB 80.6 KB https://a.wb.ru/sdk/sdk.js 2.1 KB 5.8 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/services/orderService.2c21321717279f1b0a8c.js 9.8 KB 31.2 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/services/wbxOrderService.3f...8c05fd7b44ed8c.js 12.4 KB 40.6 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/searchInput/suggest...4925c66d180c76.js 1.5 KB 3.9 KB https://static-basket-01.wbbasket.ru/vol2/site/j/swiper.3f1f360c9d33874fe5c5.js 26.6 KB 103.4 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/banners.473830efc3430176d1b8.js 9.7 KB 41.1 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/lazyBlockLoader....90a678955c61ae.js 394 B 780 B https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/spa.tooltip.d1551932ebb94b589950.js 2.6 KB 9.1 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/spa.shortDeliver...9f53140a4c37eb.js 1.7 KB 7.4 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/models/home.6626f37bbe68cda27911.js 12.4 KB 47.0 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/uploadImageForSearc...db4e8069618937.js 1.4 KB 5.3 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/catalog/xCatalogDat...3d627a6c648066.js 948 B 3.5 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/catalog_v2/provider...b3013822024ea4.js 2.4 KB 7.6 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/userInfo/userInfoRe...77394b2b922f93.js 1.3 KB 4.6 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/spa.searchTags.c...ec4113398294c9.js 535 B 766 B https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/catalog_v2/goodsCat...29d0e0146e7d80.js 24.3 KB 124.7 KB https://static-basket-01.wbbasket.ru/vol2/site/app/react-vendors.4463b5fe473e03f21749.js 40.6 KB 132.9 KB https://static-basket-01.wbbasket.ru/vol2/site/app/mo-icons.82b0e5d82416af73ae55.js 7.4 KB 24.8 KB https://static-basket-01.wbbasket.ru/vol2/site/app/mo-ui.56c8afa090f39783c39e.js 11.9 KB 75.8 KB https://static-basket-01.wbbasket.ru/vol2/site/app/modal-component.f8c024614931875ef1ad.js 1.1 KB 2.1 KB https://static-basket-01.wbbasket.ru/vol2/site/app/generalPreloader-component.b1...749655f40cf947.js 327 B 236 B https://static-basket-01.wbbasket.ru/vol2/site/app/14627.eb35aeacc24e8988fd4a.js 4.5 KB 11.9 KB https://static-basket-01.wbbasket.ru/vol2/site/app/37266.1262e74f2a4dd51ea1a8.js 18.3 KB 52.7 KB https://static-basket-01.wbbasket.ru/vol2/site/app/react-app.42e4645df7160c309213.js 3.7 KB 9.7 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/services/parseToken/parseTo...378e54035cf6d6.js 23.5 KB 75.5 KB https://pow.wildberries.ru/scripts/d.js?7eec71a7 23.8 KB 59.0 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/onlineChat/onlineCh...47791157e0d4ac.js 12.0 KB 39.3 KB https://static-basket-01.wbbasket.ru/vol2/site/j/performanceAnalytics.8b8fd2c8405863b4e6ea.js 6.4 KB 18.9 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/spa.contextMenu....696f23cf02cb02.js 720 B 1.5 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/onlineChat/onlineCh...95f079c3388771.js 9.0 KB 30.0 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/services/storageService.b23debd027e49c291b23.js 6.2 KB 21.3 KB https://pow.wildberries.ru/scripts/wasm_exec.js?5c7aa861 6.0 KB 15.7 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/lazyBlockLoader.c66511f48cf5a64f33e7.js 1.0 KB 2.3 KB
Avoid using incorrect mime types (mimeTypes)	The page has 10 misconfigured mime types.	90
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/promotion-creatives.json.hash https://www.wildberries.ru/webapi/logging/jserror https://www.wildberries.ru/webapi/logging/jserror https://static-basket-01.wbbasket.ru/vol0/data/promotion-creatives.json https://www.wildberries.ru/webapi/logging/jserror https://www.wildberries.ru/webapi/stats/events https://pow.wildberries.ru/scripts/solve.wasm?7b450d09 https://www.wildberries.ru/webapi/logging/jserror https://www.wildberries.ru/webapi/stats/events https://www.wildberries.ru/webapi/stats/events
Make each CSS response small (optimalCssSize)	https://static-basket-01.wbbasket.ru/vol2/site/s/desktop/style/views/spa/main-v3.3f468264c482632d5489.css size is 83.6 kB (83618) and that is bigger than the limit of 14.5 kB. Try to make the CSS files fit into 14.5 KB.	90
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/vol2/site/s/desktop/style/views/spa/main-v3...4c482632d5489.css 81.7 KB 542.5 KB
Total page size shouldn't be too big (pageSize)	The page total transfer size is 2.3 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/ 11.0 KB 33.3 KB https://static-basket-01.wbbasket.ru/vol2/site/f/als-hauss-vf.woff2 134.7 KB 134.4 KB https://static-basket-01.wbbasket.ru/vol2/site/s/desktop/style/views/spa/main-v3...4c482632d5489.css 81.7 KB 542.5 KB https://static-basket-01.wbbasket.ru/vol2/site/j/app.7c55f47880e103d84bab.js 64.8 KB 190.5 KB https://static-basket-01.wbbasket.ru/vol2/site/j/lang/ru.17c1b56c748f3ece8ab1.js 83.5 KB 359.4 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/index.7f239ace2fcf8a7bb122.js 142.9 KB 559.5 KB https://static-basket-01.wbbasket.ru/vol2/site/r/route-data.11-18-1.42845ec3.js 16.7 KB 80.6 KB https://static-basket-01.wbbasket.ru/vol2/site/t/jst/cookies.6dfe33e4.json 357 B 528 B https://a.wb.ru/sdk/sdk.js 2.1 KB 5.8 KB https://static-basket-01.wbbasket.ru/vol1/global-payment/default-payment.json 252 B 323 B https://static-basket-01.wbbasket.ru/vol2/site/j/spa/services/orderService.2c21321717279f1b0a8c.js 9.8 KB 31.2 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/services/wbxOrderService.3f...8c05fd7b44ed8c.js 12.4 KB 40.6 KB https://static-basket-01.wbbasket.ru/vol2/site/t/jst/menuLk.b38253b0.json 1.2 KB 7.9 KB https://static-basket-01.wbbasket.ru/vol2/site/t/jst/mobileMenuTemp.42883d4f.json 555 B 2.2 KB https://static-basket-01.wbbasket.ru/vol2/site/t/jst/footer.413388ce.json 2.8 KB 18.0 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/searchInput/suggest...4925c66d180c76.js 1.5 KB 3.9 KB https://static-basket-01.wbbasket.ru/vol2/site/j/swiper.3f1f360c9d33874fe5c5.js 26.6 KB 103.4 KB https://static-basket-01.wbbasket.ru/vol2/site/t/jst/spahome.a5bf1784.json 2.2 KB 9.7 KB https://static-basket-01.wbbasket.ru/vol2/site/s/desktop/style/views/site/main-p...5f8e97eb6083c.css 6.0 KB 45.1 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/banners.473830efc3430176d1b8.js 9.7 KB 41.1 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/lazyBlockLoader....90a678955c61ae.js 394 B 780 B https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/spa.tooltip.d1551932ebb94b589950.js 2.6 KB 9.1 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/spa.shortDeliver...9f53140a4c37eb.js 1.7 KB 7.4 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/models/home.6626f37bbe68cda27911.js 12.4 KB 47.0 KB https://www.wildberries.ru/webapi/stats/pageview 666 B 38 B https://static-basket-01.wbbasket.ru/vol0/data/promotion-creatives.json.hash 0 b 0 b https://user-geo-data.wildberries.ru/get-geo-info...s.ru/get-geo-info 616 B 369 B https://static-basket-01.wbbasket.ru/vol0/data/stores-data.json 184.3 KB 4.5 MB https://www.wildberries.ru/webapi/logging/jserror N/A 0 b https://www.wildberries.ru/webapi/logging/jserror N/A 0 b https://static-basket-01.wbbasket.ru/vol2/site/t/jst/uploadImageForSearchByImagePopUp.29d85a1d.json 623 B 1.5 KB https://static-basket-01.wbbasket.ru/vol2/site/s/spa/modules/uploadImageForSearc...ae50b44a28588.css 1.1 KB 4.6 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/uploadImageForSearc...db4e8069618937.js 1.4 KB 5.3 KB https://static-basket-01.wbbasket.ru/vol0/data/promotion-creatives.json.hash 170 B 16 B https://static-basket-01.wbbasket.ru/vol2/site/i/v3/footer/download/app-store.webp 1.9 KB 1.8 KB https://static-basket-01.wbbasket.ru/vol2/site/i/v3/footer/download/google-play.webp 2.2 KB 2.1 KB https://static-basket-01.wbbasket.ru/vol2/site/i/v3/footer/download/app-gallery.webp 2.0 KB 1.9 KB https://static-basket-01.wbbasket.ru/vol2/site/i/v3/footer/download/rustore.webp 2.0 KB 1.9 KB https://banners-website.wildberries.ru/public/v2/banners...public/v2/banners 9.9 KB 56.9 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/catalog/xCatalogDat...3d627a6c648066.js 948 B 3.5 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/catalog_v2/provider...b3013822024ea4.js 2.4 KB 7.6 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/userInfo/userInfoRe...77394b2b922f93.js 1.3 KB 4.6 KB https://static-basket-01.wbbasket.ru/vol2/site/t/jst/catalogCard.ca941b61.json 2.7 KB 9.7 KB https://static-basket-01.wbbasket.ru/vol2/site/t/jst/catalogCore.239e7083.json 4.3 KB 16.8 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/customTags/spa.searchTags.c...ec4113398294c9.js 535 B 766 B https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/catalog_v2/goodsCat...29d0e0146e7d80.js 24.3 KB 124.7 KB https://www.wildberries.ru/webapi/api/home/seo 3.3 KB 6.9 KB https://static-basket-01.wbbasket.ru/vol2/site/app/react-vendors.4463b5fe473e03f21749.js 40.6 KB 132.9 KB https://static-basket-01.wbbasket.ru/vol2/site/app/mo-icons.82b0e5d82416af73ae55.js 7.4 KB 24.8 KB https://static-basket-01.wbbasket.ru/vol2/site/app/mo-ui.56c8afa090f39783c39e.js 11.9 KB 75.8 KB https://static-basket-01.wbbasket.ru/vol2/site/app/modal-component.f8c024614931875ef1ad.js 1.1 KB 2.1 KB https://static-basket-01.wbbasket.ru/vol2/site/app/generalPreloader-component.b1...749655f40cf947.js 327 B 236 B https://static-basket-01.wbbasket.ru/vol2/site/app/modal.75158a0f0d1d2f230958.css 603 B 1.4 KB https://static-basket-01.wbbasket.ru/vol2/site/app/generalPreloader.afe2ccfd4a81a33f9c85.css 917 B 6.2 KB https://static-basket-01.wbbasket.ru/vol2/site/app/14627.eb35aeacc24e8988fd4a.js 4.5 KB 11.9 KB https://static-basket-01.wbbasket.ru/vol2/site/app/37266.1262e74f2a4dd51ea1a8.js 18.3 KB 52.7 KB https://static-basket-01.wbbasket.ru/vol2/site/app/react-app.42e4645df7160c309213.js 3.7 KB 9.7 KB https://static-basket-01.wbbasket.ru/vol0/data/promotion-creatives.json 0 b 0 b https://www.wildberries.ru/webapi/personalinfo 1.2 KB 627 B https://static-basket-01.wbbasket.ru/vol0/data/promotion-creatives.json 814 B 1.8 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/services/parseToken/parseTo...378e54035cf6d6.js 23.5 KB 75.5 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://a.wb.ru/e/pageview....wb.ru/e/pageview 0 b 0 b https://a.wb.ru/e/Alert_S...a.wb.ru/e/Alert_S 0 b 0 b https://a.wb.ru/e/Alert_S...a.wb.ru/e/Alert_S 0 b 0 b https://a.wb.ru/e/Footer_S....wb.ru/e/Footer_S 0 b 0 b https://a.wb.ru/e/Screen_V....wb.ru/e/Screen_V 0 b 0 b https://www.wildberries.ru/webapi/logging/jserror N/A 0 b https://pow.wildberries.ru/api/v1/js-settings 781 B 122 B https://www.wildberries.ru/manifestv2.json 1.0 KB 1.5 KB https://www.wildberries.ru/icon.svg 1.4 KB 1.5 KB https://static-basket-01.wbbasket.ru/vol2/site/i/blank.gif 173 B 49 B https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/poster/ru/anno/1440x40/wibes_2880_mob_3.webp 26.5 KB 26.3 KB https://www.wildberries.ru/favicon.ico 15.7 KB 15.0 KB https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1743331846073546319.webp 127.1 KB 126.9 KB https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/poster/ru/bignew/992x413/992_413_1.webp 130.8 KB 130.7 KB https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/poster/ru/bignew/992x413/v_2_1_992wb.webp 62.8 KB 62.7 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://www.wildberries.ru/android-icon-144x144.png 16.7 KB 16.1 KB https://pow.wildberries.ru/scripts/d.js?7eec71a7 23.8 KB 59.0 KB https://static-basket-01.wbbasket.ru/vol2/site/t/jst/onlineChatPopup.5577172b.json 3.9 KB 19.3 KB https://static-basket-01.wbbasket.ru/vol2/site/s/desktop/style/modules/popups/ch...4cd109248f542.css 10.4 KB 76.9 KB https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/onlineChat/onlineCh...47791157e0d4ac.js 12.0 KB 39.3 KB https://www.wildberries.ru/webapi/stats/events N/A 0 b 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KB 21.3 KB https://chat-prod.wildberries.ru/api/support/v1/unauth/messages 0 b 0 b https://pow.wildberries.ru/api/v1/client/get-task?client_id=c810af55-d5e0-41dc-960b-33f809d7e6de 1.1 KB 433 B https://pow.wildberries.ru/scripts/wasm_exec.js?5c7aa861 6.0 KB 15.7 KB https://chat-prod.wildberries.ru/api/support/v1/unauth/messages 585 B 3 B https://pow.wildberries.ru/scripts/solve.wasm?7b450d09 150.0 KB 342.6 KB https://www.wildberries.ru/webapi/logging/jserror N/A 0 b https://recom.wb.ru/personal/ru/common/v5/search.../common/v5/search 37.8 KB 134.1 KB https://pow.wildberries.ru/api/v1/client/verify-answer 779 B 120 B https://static-basket-01.wbbasket.ru/vol2/site/j/spa/modules/lazyBlockLoader.c66511f48cf5a64f33e7.js 1.0 KB 2.3 KB https://a.wb.ru/e/ec...ps://a.wb.ru/e/ec 0 b 0 b https://basket-08.wbbasket.ru/vol1148/part114852/114852471/images/c516x688/1.webp 76.3 KB 75.8 KB https://basket-12.wbbasket.ru/vol1909/part190936/190936343/images/c516x688/1.webp 49.2 KB 48.7 KB https://basket-02.wbbasket.ru/vol160/part16082/16082002/images/c516x688/1.webp 54.5 KB 54.1 KB https://basket-14.wbbasket.ru/vol2067/part206741/206741815/images/c516x688/1.webp 72.4 KB 71.9 KB https://basket-20.wbbasket.ru/vol3303/part330303/330303658/images/c516x688/1.webp 49.1 KB 48.6 KB https://basket-10.wbbasket.ru/vol1548/part154859/154859674/images/c516x688/1.webp 37.0 KB 36.5 KB https://basket-10.wbbasket.ru/vol1584/part158420/158420554/images/c516x688/1.webp N/A 17.0 KB https://basket-12.wbbasket.ru/vol1891/part189181/189181799/images/c516x688/1.webp 33.4 KB 33.2 KB https://www.wildberries.ru/webapi/stats/events N/A 0 b https://static-basket-01.wbbasket.ru/vol0/data/main-menu-ru-ru-v3.json 73.6 KB 497.3 KB https://static-basket-01.wbbasket.ru/vol2/site/t/jst/menuTopTmpl.dac4c2eb.json 1.5 KB 6.8 KB https://catalog.wb.ru/menu/v11/api?locale=ru&lang=ru&id=131289&collapse&dest=-1257786 25.8 KB 98.4 KB https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/poster/ru/bignew/992x413/992.webp 75.9 KB 75.7 KB https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/poster/ru/bignew/992x413/992_biznes.webp 78.4 KB 78.3 KB https://a.wb.ru/e/ec...ps://a.wb.ru/e/ec 0 b 0 b https://a.wb.ru/e/ec...ps://a.wb.ru/e/ec 0 b 0 b https://static-basket-01.wbbasket.ru/vol0/data/all-poo-v10.json.hash 170 B 16 B https://www.wildberries.ru/webapi/stats/events N/A 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/data/all-poo-fr-v10.json N/A 10.1 KB
Don't use private headers on static content (privateAssets)	The page has 7 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.	30
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/webapi/api/home/seo https://pow.wildberries.ru/api/v1/js-settings https://www.wildberries.ru/manifestv2.json https://www.wildberries.ru/icon.svg https://www.wildberries.ru/android-icon-144x144.png https://chat-prod.wildberries.ru/api/support/v1/unauth/messages

Best practice advice (59)

Show/hide details

Title	Advice	Score
Cumulative Layout Shift (cumulativeLayoutShift)	You have a poor cumulative layout shift score (0.4050). It is in the Google Web Vitals poor range, with a shift higher than 0.25. You should manually check the filmstrip or video and check if it will affect the user.	0
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 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 (103 requests and 2.1 MB) then first party (25 requests and 250.2 kB). The page transfer more bytes from third party domains (2.1 MB) then first party (250.2 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 24 responses that sets both a max-age and expires header. There are 20 responses that sets a pragma no-cache header (that is a request header). There are 27 responses that sets a server header.	29
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://www.wildberries.ru/webapi/stats/pageview https://www.wildberries.ru/webapi/stats/pageview https://www.wildberries.ru/webapi/stats/pageview https://user-geo-data.wildberries.ru/get-geo-info...s.ru/get-geo-info 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/logging/jserror https://www.wildberries.ru/webapi/logging/jserror https://www.wildberries.ru/webapi/logging/jserror https://banners-website.wildberries.ru/public/v2/banners...public/v2/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/personalinfo https://www.wildberries.ru/webapi/personalinfo https://www.wildberries.ru/webapi/personalinfo https://www.wildberries.ru/webapi/logging/jserror https://www.wildberries.ru/webapi/logging/jserror https://www.wildberries.ru/webapi/logging/jserror https://pow.wildberries.ru/api/v1/js-settings https://pow.wildberries.ru/api/v1/js-settings https://pow.wildberries.ru/api/v1/js-settings https://www.wildberries.ru/manifestv2.json https://www.wildberries.ru/manifestv2.json https://www.wildberries.ru/manifestv2.json https://www.wildberries.ru/icon.svg https://www.wildberries.ru/icon.svg https://www.wildberries.ru/icon.svg https://www.wildberries.ru/favicon.ico https://www.wildberries.ru/favicon.ico https://www.wildberries.ru/favicon.ico 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://pow.wildberries.ru/scripts/d.js?7eec71a7 https://pow.wildberries.ru/scripts/d.js?7eec71a7 https://www.wildberries.ru/webapi/stats/events https://www.wildberries.ru/webapi/stats/events https://www.wildberries.ru/webapi/stats/events https://chat-prod.wildberries.ru/api/support/v1/unauth/messages https://chat-prod.wildberries.ru/api/support/v1/unauth/messages https://chat-prod.wildberries.ru/api/support/v1/unauth/messages https://pow.wildberries.ru/api/v1/client/get-task?client_id=c810af55-d5e0-41dc-960b-33f809d7e6de https://pow.wildberries.ru/api/v1/client/get-task?client_id=c810af55-d5e0-41dc-960b-33f809d7e6de https://pow.wildberries.ru/api/v1/client/get-task?client_id=c810af55-d5e0-41dc-960b-33f809d7e6de https://pow.wildberries.ru/scripts/wasm_exec.js?5c7aa861 https://pow.wildberries.ru/scripts/wasm_exec.js?5c7aa861 https://chat-prod.wildberries.ru/api/support/v1/unauth/messages https://chat-prod.wildberries.ru/api/support/v1/unauth/messages https://chat-prod.wildberries.ru/api/support/v1/unauth/messages https://pow.wildberries.ru/scripts/solve.wasm?7b450d09 https://pow.wildberries.ru/scripts/solve.wasm?7b450d09 https://www.wildberries.ru/webapi/logging/jserror https://www.wildberries.ru/webapi/logging/jserror https://www.wildberries.ru/webapi/logging/jserror https://recom.wb.ru/personal/ru/common/v5/search.../common/v5/search https://pow.wildberries.ru/api/v1/client/verify-answer https://pow.wildberries.ru/api/v1/client/verify-answer https://pow.wildberries.ru/api/v1/client/verify-answer https://www.wildberries.ru/webapi/stats/events https://www.wildberries.ru/webapi/stats/events https://www.wildberries.ru/webapi/stats/events https://catalog.wb.ru/menu/v11/api?locale=ru&lang=ru&id=131289&collapse&dest=-1257786 https://www.wildberries.ru/webapi/stats/events https://www.wildberries.ru/webapi/stats/events https://www.wildberries.ru/webapi/stats/events

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/
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	485
Height	7754
DOM elements	5214
Avg DOM depth	14
Max DOM depth	19
Iframes	0
Script tags	2997
Local storage	282.6 KB
Session storage	209 B
Network Information API	3g

Resource Hints
preconnect
https://static-basket-01.wbbasket.ru/
https://splitter.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
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.

Element type	IMG
Element/tag	<img src="https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1743331846073546319.webp" data-src-pb="https://static-basket-01.wbbasket.ru/vol1/crm-bnrs/adsf/1743331846073546319.webp" class="swiper-lazy swiper-lazy-loaded" name="banner_d4270646-55cf-4f5e-a70c-4ca29bfb3e3f" alt="Весенняя супер-игра" width="1440" height="168">
Render time	11.140 s
Element render delay	35 ms
TTFB	797 ms
Resource delay	7.791 s
Resource load duration	2.517 s
Elements that needed recalculate style before LCP	5222
Time spent in recalculate style before LCP	267.412 ms
Load time	11.106 s
URL	https://static-baske...846073546319.webp
Size (width*height)	85443
DOM path
div:eq(0) > main#body-layout > div#mainContainer > div#app > div:eq(1) > div > div:eq(2) > div > div > div:eq(0) > div:eq(1) > div > a > div > img> div:eq(0) > main#body-layout > div#mainContainer > div#app > div:eq(1) > div > div:eq(2) > div > div > div:eq(0) > div:eq(1) > div > a > div > img>

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

0.40499 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
0.26250	<div id="mainContainer" class="main__container"></div>
body > div:eq(0) > main#body-layout > div#mainContainer
0.00273
0.00273
0.00273
0.00273
0.00273
0.00272
0.00272
0.00272
0.00271
0.00271
0.00271
0.00271
0.00270
0.00270
0.00269
0.00269
0.00269
0.00268
0.00268
0.00267
0.00265
0.00265
0.00265
0.00265
0.00259
0.00259
0.00256
0.00256
0.00240
0.00240
0.00239
0.00239
0.00222
0.00222
0.00221
0.00221
0.00205
0.00204
0.00203
0.00203
0.00187
0.00185
0.00185
0.00170
0.00169
0.00169
0.00153
0.00152
0.00152
0.00138
0.00137
0.00137
0.00123
0.00122
0.00122
0.00108
0.00107
0.00107
0.00095
0.00094
0.00094
0.00082
0.00082
0.00081
0.00070
0.00070
0.00069
0.00060
0.00059
0.00059
0.00050
0.00049
0.00049
0.00041
0.00040
0.00040
0.00032
0.00032
0.00032
0.00025
0.00025
0.00024
0.00019
0.00018
0.00018
0.00012
0.00012
0.00012
0.00008
0.00007
0.00007

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

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 15.062 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