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.
1.24 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.37 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.009
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.59 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.
2.37 s
Page Load Progression
CImage OptimizationAction28 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
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 Execution Cost536ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://moe.video/ | 140ms | 6ms | 1ms | 1st |
| https://top-fwz1.mail.ru/js/code.js | 118ms | 99ms | 3ms | 3rd |
| Unattributable | 108ms | 9ms | 0ms | 3rd |
| https://privacy-cs.mail.ru/static/sync-loader.js | 102ms | 88ms | 3ms | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 68ms | 56ms | 9ms | 3rd |
BJS Bundles8 scripts, 92 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 (74%) | ✓ | 1st |
| https://mc.yandex.ru/metrika/tag.js | 85 KB | 45 KB (53%) | ✓ | 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%3D2641.899999976158%3B129%3D1.10.3%3B206%3DDSPCounter&ph=0&rnd=404519&tail256=unknown&yid1=177636022818573528&tuid=-5786790342 | 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 Budget961 KB transferred, 55 requestsPASS
A+Third-Party Impact18% 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 HintsNo optimization neededPASS
A+Page Weight Inventory55 resources · 961 KB · 92 KB savings availablePASS
~91.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 55 resources | 961.3 KiB | ||||||
Network Waterfall55 requests over 4672msINFO
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 | 118ms | 20 KB | — | ₽35/mo | Optional |
Unattributable Unattributable | Other | 108ms | 0 KB | — | ₽32/mo | Optional |
privacy-cs.mail.ru privacy-cs.mail.ru | Other | 102ms | 22 KB | — | ₽30/mo | Optional |
mc.yandex.ru mc.yandex.ru | Other | 68ms | 85 KB | 53% | ₽20/mo | Optional |
74% 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
53% 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