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.
6.06 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
7.58 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.04 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.001
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
10.65 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.
22.26 s
Page Load Progression
FPage Weight BudgetAction3.4 MB transferred, 155 requestsFIX
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 ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction39442ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.ntv.ru/stories/new-amp/index.jsp | 22596ms | 3ms | 2ms | 3rd |
| Unattributable | 5273ms | 94ms | 0ms | 3rd |
| https://static2.ntv.ru/assets/main-CS-BSIk4.js | 3060ms | 2569ms | 2ms | 3rd |
| https://www.ntv.ru/ | 2313ms | 13ms | 30ms | 3rd |
| https://cdn2-static.ntv.ru/frontend/js/player.js?v12122025 | 1768ms | 905ms | 104ms | 3rd |
| https://cdn2-static.ntv.ru/frontend/js/videojs-contrib-dash.8edb27ed11429794159a.js | 1169ms | 571ms | 66ms | 3rd |
| https://yandex.ru/ads/system/header-bidding.js | 668ms | 361ms | 14ms | 3rd |
| https://yandex.ru/ads/system/context.js | 407ms | 342ms | 60ms | 3rd |
| https://privacy-cs.mail.ru/static/sync-loader.js | 353ms | 299ms | 10ms | 3rd |
| https://static2.ntv.ru/assets/js/swiper-Ba6tUfSS.js | 288ms | 71ms | 0ms | 3rd |
Showing top 10 of 21 scripts
FJS BundlesAction49 scripts, 834 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn2-static.ntv.ru/frontend/js/player.js?v12122025 | 235 KB | 162 KB (69%) | ✓ | 3rd |
| https://cdn2-static.ntv.ru/frontend/js/dashjs.0d72df2900da4ce3be3a.js | 191 KB | 153 KB (80%) | ✓ | 3rd |
| https://yastatic.net/partner-code-bundles/1304651/00cc0164cd639ddf.js | 130 KB | 105 KB (81%) | ✓ | 3rd |
| https://cdn2-static.ntv.ru/frontend/js/videojs-contrib-dash.8edb27ed11429794159a.js | 190 KB | 93 KB (49%) | ✓ | 3rd |
| https://yandex.ru/ads/system/context.js | 104 KB | 73 KB (70%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-582JW9RQ | 122 KB | 68 KB (56%) | ✓ | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 85 KB | 49 KB (57%) | ✓ | 3rd |
| https://mc.yandex.ru/metrika/watch.js | 69 KB | 44 KB (65%) | ✓ | 3rd |
| https://static2.ntv.ru/assets/main-CS-BSIk4.js | 159 KB | 40 KB (26%) | ✓ | 3rd |
| https://yastatic.net/partner-code-bundles/1304651/22d10f9d8e892aab.js | 32 KB | 25 KB (79%) | ✓ | 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 InventoryAction155 resources · 3.4 MB · 834 KB savings availableFIX
~833.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 155 resources | 3.4 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization33 images, 0 KB saveableREVIEW
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 Loading5 fonts (210 KB)PASS
Web fonts
5
210 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 ~1 KB and ~2 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall155 requests over 36022msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.ntv.ru www.ntv.ru | Other | 22596ms | 2 KB | — | ₽6691/mo | Costly |
Unattributable Unattributable | Other | 5273ms | 0 KB | — | ₽1561/mo | Costly |
static2.ntv.ru static2.ntv.ru | Other | 3060ms | 159 KB | 26% | ₽906/mo | Costly |
www.ntv.ru www.ntv.ru | Other | 2313ms | 36 KB | — | ₽685/mo | Costly |
cdn2-static.ntv.ru cdn2-static.ntv.ru | Other | 1768ms | 235 KB | 69% | ₽523/mo | Costly |
cdn2-static.ntv.ru cdn2-static.ntv.ru | Other | 1169ms | 190 KB | 49% | ₽346/mo | Costly |
yandex.ru yandex.ru | Other | 668ms | 38 KB | — | ₽198/mo | Costly |
yandex.ru yandex.ru | Other | 407ms | 104 KB | 70% | ₽120/mo | Costly |
privacy-cs.mail.ru privacy-cs.mail.ru | Other | 353ms | 22 KB | — | ₽105/mo | Costly |
static2.ntv.ru static2.ntv.ru | Other | 288ms | 20 KB | — | ₽85/mo | Costly |
mc.yandex.ru mc.yandex.ru | Other | 275ms | 85 KB | 57% | ₽81/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 269ms | 122 KB | 56% | ₽80/mo | Costly |
mc.yandex.ru mc.yandex.ru | Other | 177ms | 69 KB | 65% | ₽52/mo | Costly |
yastatic.net yastatic.net | Other | 171ms | 130 KB | 81% | ₽51/mo | Costly |
cdn2-static.ntv.ru cdn2-static.ntv.ru | Other | 159ms | 191 KB | 80% | ₽47/mo | Optional |
static2.ntv.ru static2.ntv.ru | Other | 122ms | 3 KB | — | ₽36/mo | Optional |
top-fwz1.mail.ru top-fwz1.mail.ru | Other | 117ms | 20 KB | — | ₽35/mo | Optional |
tns-counter.ru tns-counter.ru | Other | 73ms | 25 KB | — | ₽22/mo | Optional |
s3.wi-fi.ru s3.wi-fi.ru | Other | 70ms | 36 KB | 63% | ₽21/mo | Optional |
yandex.ru yandex.ru | Other | 60ms | 28 KB | — | ₽18/mo | Optional |
yastatic.net yastatic.net | Other | 53ms | 32 KB | 79% | ₽16/mo | Optional |
These scripts may cost more than they're worth
- www.ntv.ru adds 22596ms and costs ~₽6691/month
- Unattributable adds 5273ms and costs ~₽1561/month
- static2.ntv.ru adds 3060ms and costs ~₽906/month
- www.ntv.ru adds 2313ms and costs ~₽685/month
- cdn2-static.ntv.ru adds 1768ms and costs ~₽523/month
- cdn2-static.ntv.ru adds 1169ms and costs ~₽346/month
- yandex.ru adds 668ms and costs ~₽198/month
- yandex.ru adds 407ms and costs ~₽120/month
- privacy-cs.mail.ru adds 353ms and costs ~₽105/month
- static2.ntv.ru adds 288ms and costs ~₽85/month
- mc.yandex.ru adds 275ms and costs ~₽81/month
- Google Tag Manager adds 269ms and costs ~₽80/month
- mc.yandex.ru adds 177ms and costs ~₽52/month
- yastatic.net adds 171ms and costs ~₽51/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
www.ntv.ru takes 22596ms 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 5273ms 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
static2.ntv.ru takes 3060ms 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.ntv.ru takes 2313ms 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
cdn2-static.ntv.ru takes 1768ms 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
69% of cdn2-static.ntv.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
cdn2-static.ntv.ru takes 1169ms 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
yandex.ru takes 668ms 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
yandex.ru takes 407ms 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
70% 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
privacy-cs.mail.ru takes 353ms 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
static2.ntv.ru takes 288ms 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 275ms 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
57% of mc.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
Google Tag Manager takes 269ms 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
56% of Google Tag Manager'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
mc.yandex.ru takes 177ms 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
65% of mc.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
yastatic.net takes 171ms 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
81% 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
80% of cdn2-static.ntv.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
63% of s3.wi-fi.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
79% 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