Performance
· 15 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.
1.28 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.62 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
148 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.027
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.75 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.
5.70 s
Page Load Progression
375 ms
750 ms
1.1 s
1.5 s 1.9 s
2.2 s
2.6 s
3.0 sFPage Weight BudgetAction6.1 MB transferred, 259 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
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
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
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
DThird-Party ImpactAction97% third-party, 0 ms blockingFIX
FJS Execution CostAction4962ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://rutube.ru/ | 2516ms | 7ms | 12ms | 1st |
| https://static.rtbcdn.ru/woodpecker/assets/release-woodpecker-345-2-1-c7d1e5dc/web/main.js?release-woodpecker-345-2-1-c7d1e5dc | 730ms | 638ms | 4ms | 3rd |
| Unattributable | 570ms | 51ms | 0ms | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 310ms | 273ms | 7ms | 3rd |
| https://static.rtbcdn.ru/woodpecker/assets/release-woodpecker-345-2-1-c7d1e5dc/web/5098.js | 305ms | 240ms | 4ms | 3rd |
| https://static.rtbcdn.ru/woodpecker/assets/release-woodpecker-345-2-1-c7d1e5dc/web/2974.js | 202ms | 132ms | 12ms | 3rd |
| https://static.rtbcdn.ru/woodpecker/assets/release-woodpecker-345-2-1-c7d1e5dc/web/2737.js | 191ms | 154ms | 1ms | 3rd |
| https://yandex.ru/ads/system/context.js | 87ms | 65ms | 8ms | 3rd |
| https://static.rtbcdn.ru/woodpecker/assets/release-woodpecker-345-2-1-c7d1e5dc/web/2339.js | 51ms | 25ms | 0ms | 3rd |
FJS BundlesAction30 scripts, 524 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 (79%) | ✓ | 3rd |
| https://static.rtbcdn.ru/woodpecker/assets/release-woodpecker-345-2-1-c7d1e5dc/web/wdp.js | 182 KB | 100 KB (56%) | ✓ | 3rd |
| https://static.rtbcdn.ru/woodpecker/assets/release-woodpecker-345-2-1-c7d1e5dc/web/2974.js | 155 KB | 74 KB (48%) | ✓ | 3rd |
| https://yandex.ru/ads/system/context.js | 105 KB | 57 KB (55%) | ✓ | 3rd |
| https://cdn.uxfeedback.ru/assets-6.7.0/1.616f7d2b6bfdd3243883.js | 58 KB | 50 KB (87%) | ✓ | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 85 KB | 39 KB (45%) | ✓ | 3rd |
| https://yastatic.net/partner-code-bundles/1304651/22d10f9d8e892aab.js | 32 KB | 27 KB (85%) | ✓ | 3rd |
| https://static.rtbcdn.ru/woodpecker/assets/release-woodpecker-345-2-1-c7d1e5dc/web/7770.js | 75 KB | 27 KB (36%) | ✓ | 3rd |
| https://cdn.uxfeedback.ru/assets-6.7.0/3.287af1da089741ed4947.js | 28 KB | 27 KB (97%) | ✓ | 3rd |
| https://static.rtbcdn.ru/woodpecker/assets/release-woodpecker-345-2-1-c7d1e5dc/web/main.js?release-woodpecker-345-2-1-c7d1e5dc | 47 KB | 20 KB (44%) | ✓ | 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
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
FPage Weight InventoryAction259 resources · 6.1 MB · 524 KB savings availableFIX
~523.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 259 resources | 6.1 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
no-store
| Directive | Value | Meaning |
|---|---|---|
| no-store | — | Never cache this response |
CImage OptimizationAction153 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
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 Loading7 fonts (561 KB)PASS
Web fonts
7
561 KB total
Render-blocking
0
of 7
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~147 KB and ~294 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall259 requests over 16668msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
static.rtbcdn.ru static.rtbcdn.ru | Other | 730ms | 47 KB | 44% | ₽216/mo | Costly |
Unattributable Unattributable | Other | 570ms | 0 KB | — | ₽169/mo | Costly |
mc.yandex.ru mc.yandex.ru | Other | 310ms | 85 KB | 45% | ₽92/mo | Costly |
static.rtbcdn.ru static.rtbcdn.ru | Other | 305ms | 40 KB | — | ₽90/mo | Costly |
static.rtbcdn.ru static.rtbcdn.ru | Other | 202ms | 155 KB | 48% | ₽60/mo | Costly |
static.rtbcdn.ru static.rtbcdn.ru | Other | 191ms | 14 KB | — | ₽57/mo | Costly |
yandex.ru yandex.ru | Other | 87ms | 105 KB | 55% | ₽26/mo | Optional |
static.rtbcdn.ru static.rtbcdn.ru | Other | 51ms | 8 KB | — | ₽15/mo | Optional |
These scripts may cost more than they're worth
- static.rtbcdn.ru adds 730ms and costs ~₽216/month
- Unattributable adds 570ms and costs ~₽169/month
- mc.yandex.ru adds 310ms and costs ~₽92/month
- static.rtbcdn.ru adds 305ms and costs ~₽90/month
- static.rtbcdn.ru adds 202ms and costs ~₽60/month
- static.rtbcdn.ru adds 191ms and costs ~₽57/month
49% of JavaScript execution time comes from third-party scripts.
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾ ▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
static.rtbcdn.ru takes 730ms 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 570ms 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 310ms 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
static.rtbcdn.ru takes 305ms 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
static.rtbcdn.ru takes 202ms 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
static.rtbcdn.ru takes 191ms 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
55% of yandex.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