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.
2.00 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.43 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
118 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.234
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.12 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.
7.17 s
Page Load Progression
FJS Execution CostAction4270ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://top-fwz1.mail.ru/js/code.js | 1884ms | 1673ms | 7ms | 3rd |
| Unattributable | 670ms | 39ms | 0ms | 3rd |
| https://moe.video/ | 578ms | 21ms | 4ms | 1st |
| https://privacy-cs.mail.ru/static/sync-loader.js | 362ms | 314ms | 12ms | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 303ms | 254ms | 37ms | 3rd |
| https://mc.yandex.com/metrika-tags/_/tag_ec.js | 211ms | 166ms | 6ms | 3rd |
| https://counter.reddigital.ru/DSPCounter.js | 154ms | 124ms | 7ms | 3rd |
| https://moe.video/build/assets/app-DP80toBK.js | 107ms | 91ms | 2ms | 1st |
CImage OptimizationAction29 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.
Performance issues directly impact user engagement and conversion rates.
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
BJS Bundles8 scripts, 91 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://moe.video/build/assets/app-DP80toBK.js | 64 KB | 47 KB (75%) | ✓ | 1st |
| https://mc.yandex.ru/metrika/tag.js | 85 KB | 43 KB (51%) | ✓ | 3rd |
| https://counter.reddigital.ru/DSPCounter.js | 17 KB | — | ✓ | 3rd |
| https://top-fwz1.mail.ru/js/code.js | 20 KB | — | ✓ | 3rd |
| https://privacy-cs.mail.ru/static/sync-loader.js | 22 KB | — | ✓ | 3rd |
| https://top-fwz1.mail.ru/js/dyn-goal-config.js?ids=3676316 | 2 KB | — | ✓ | 3rd |
| https://ad.adriver.ru/cgi-bin/erle.cgi?sid=230886&bt=62&custom=128%3D2732.7000000476837%3B129%3D1.10.3%3B206%3DDSPCounter&ph=0&rnd=636650&tail256=unknown&yid1=1776360177573743920&tuid=-5354438444 | 3 KB | — | ✓ | 3rd |
| https://mc.yandex.com/metrika-tags/_/tag_ec.js | 16 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
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingprivate, must-revalidateREVIEW
private, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| must-revalidate | — | Must recheck with server after expiry |
APage Weight Budget917 KB transferred, 57 requestsPASS
A+Third-Party Impact20% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading2 fonts (42 KB)PASS
Web fonts
2
42 KB total
Render-blocking
0
of 2
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)
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints1 hints, 0 missing preconnectsPASS
Current Resource Hints
1 resource hints configured
A+Page Weight Inventory57 resources · 917 KB · 91 KB savings availablePASS
~90.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 57 resources | 916.7 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall57 requests over 34473msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
top-fwz1.mail.ru top-fwz1.mail.ru | Other | 1884ms | 20 KB | — | ₽558/mo | Costly |
Unattributable Unattributable | Other | 670ms | 0 KB | — | ₽198/mo | Costly |
privacy-cs.mail.ru privacy-cs.mail.ru | Other | 362ms | 22 KB | — | ₽107/mo | Costly |
mc.yandex.ru mc.yandex.ru | Other | 303ms | 85 KB | 51% | ₽90/mo | Costly |
mc.yandex.com mc.yandex.com | Other | 211ms | 16 KB | — | ₽63/mo | Costly |
counter.reddigital.ru counter.reddigital.ru | Other | 154ms | 17 KB | — | ₽45/mo | Optional |
These scripts may cost more than they're worth
- top-fwz1.mail.ru adds 1884ms and costs ~₽558/month
- Unattributable adds 670ms and costs ~₽198/month
- privacy-cs.mail.ru adds 362ms and costs ~₽107/month
- mc.yandex.ru adds 303ms and costs ~₽90/month
- mc.yandex.com adds 211ms and costs ~₽63/month
84% 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
top-fwz1.mail.ru takes 1884ms 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 670ms 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 362ms 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 303ms 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
51% 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
mc.yandex.com takes 211ms 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