Performance
· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
3.12 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
11.55 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
963 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.103
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
6.50 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
11.59 s
Page Load Progression
599 ms 1.2 s 1.8 s
2.4 s
3.0 s 3.6 s
4.2 s
4.8 sDThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction4819ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://yandex.ru/ads/system/context.js | 793ms | 639ms | 57ms | 3rd |
| Unattributable | 772ms | 52ms | 0ms | 3rd |
| https://top-fwz1.mail.ru/js/code.js | 669ms | 563ms | 18ms | 3rd |
| https://www.garant.ru/ | 566ms | 29ms | 10ms | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 426ms | 338ms | 36ms | 3rd |
| https://st.top100.ru/top100/top100.js | 366ms | 299ms | 41ms | 3rd |
| https://privacy-cs.mail.ru/static/sync-loader.js | 344ms | 298ms | 12ms | 3rd |
| https://yastatic.net/partner-code-bundles/1304651/00cc0164cd639ddf.js | 209ms | 122ms | 87ms | 3rd |
| https://w.uptolike.com/widgets/v1/version.js?cb=cb__utl_cb_share_1776889656827705 | 187ms | 134ms | 0ms | 3rd |
| https://www.garant.ru/images/m/js/vendors/jquery.js | 184ms | 93ms | 69ms | 3rd |
Showing top 10 of 13 scripts
DJS BundlesAction25 scripts, 226 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://yastatic.net/partner-code-bundles/1304651/00cc0164cd639ddf.js | 130 KB | 103 KB (80%) | ✓ | 3rd |
| https://www.garant.ru/images/m/js/vendors/jquery.js | 80 KB | 42 KB (53%) | ✗ | 3rd |
| https://yandex.ru/ads/system/context.js | 105 KB | 41 KB (40%) | ✓ | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 85 KB | 39 KB (46%) | ✓ | 3rd |
| https://www.garant.ru/images/m/js/toggle_block.state.js?540 | 1 KB | — | ✓ | 3rd |
| https://top-fwz1.mail.ru/js/dyn-goal-config.js?ids=84008 | 2 KB | — | ✓ | 3rd |
| https://www.garant.ru/images/m/js/vendors/bootstrap.min.js | 10 KB | — | ✓ | 3rd |
| https://www.garant.ru/images/m/js/vendors/slideout.min.js?540 | 3 KB | — | ✓ | 3rd |
| https://www.garant.ru/images/m/js/vendors/jquery.placeholder.js | 2 KB | — | ✓ | 3rd |
| https://www.garant.ru/images/m/js/vendors/fancybox/jquery.fancybox.pack.js | 9 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
Consider code splitting or tree shaking to reduce unused code.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
Consider code splitting or tree shaking to reduce unused code.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
Consider code splitting or tree shaking to reduce unused code.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
DPage Weight InventoryAction118 resources · 1.7 MB · 226 KB savings availableFIX
~225.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 118 resources | 1.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CPage Weight BudgetAction1.7 MB transferred, 118 requestsREVIEW
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
CImage OptimizationAction54 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading3 fonts (111 KB)PASS
Web fonts
3
111 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
Optimization checklist
- Preload critical fonts (priority=high)
- Use woff2 format for all fonts
- Set font-display to swap, optional, or fallback
- Subset large fonts (≤100 KB each)
Fixing the unchecked items could save ~26 KB and ~52 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall118 requests over 8354msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
yandex.ru yandex.ru | Other | 793ms | 105 KB | 40% | ₽235/mo | Costly |
Unattributable Unattributable | Other | 772ms | 0 KB | — | ₽229/mo | Costly |
top-fwz1.mail.ru top-fwz1.mail.ru | Other | 669ms | 20 KB | — | ₽198/mo | Costly |
www.garant.ru www.garant.ru | Other | 566ms | 18 KB | — | ₽167/mo | Costly |
mc.yandex.ru mc.yandex.ru | Other | 426ms | 85 KB | 46% | ₽126/mo | Costly |
st.top100.ru st.top100.ru | Other | 366ms | 37 KB | — | ₽108/mo | Costly |
privacy-cs.mail.ru privacy-cs.mail.ru | Other | 344ms | 22 KB | — | ₽102/mo | Costly |
yastatic.net yastatic.net | Other | 209ms | 130 KB | 80% | ₽62/mo | Costly |
w.uptolike.com w.uptolike.com | Other | 187ms | 1 KB | — | ₽55/mo | Costly |
www.garant.ru www.garant.ru | Other | 184ms | 80 KB | 53% | ₽54/mo | Costly |
w.uptolike.com w.uptolike.com | Other | 133ms | 9 KB | — | ₽39/mo | Optional |
yastatic.net yastatic.net | Other | 99ms | 32 KB | — | ₽29/mo | Optional |
w.uptolike.com w.uptolike.com | Other | 72ms | 42 KB | — | ₽21/mo | Optional |
These scripts may cost more than they're worth
- yandex.ru adds 793ms and costs ~₽235/month
- Unattributable adds 772ms and costs ~₽229/month
- top-fwz1.mail.ru adds 669ms and costs ~₽198/month
- www.garant.ru adds 566ms and costs ~₽167/month
- mc.yandex.ru adds 426ms and costs ~₽126/month
- st.top100.ru adds 366ms and costs ~₽108/month
- privacy-cs.mail.ru adds 344ms and costs ~₽102/month
- yastatic.net adds 209ms and costs ~₽62/month
- w.uptolike.com adds 187ms and costs ~₽55/month
- www.garant.ru adds 184ms and costs ~₽54/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.
Learn more ▾ ▴
Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.
Source: web.dev
yandex.ru takes 793ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Unattributable takes 772ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
top-fwz1.mail.ru takes 669ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.garant.ru takes 566ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
mc.yandex.ru takes 426ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
st.top100.ru takes 366ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
privacy-cs.mail.ru takes 344ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
yastatic.net takes 209ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
80% of yastatic.net's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
w.uptolike.com takes 187ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.garant.ru takes 184ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
53% of www.garant.ru's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev