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.
1.64 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.22 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.
0.620
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.62 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.
2.22 s
Page Load Progression
949 ms
1.9 s
2.8 s
3.8 s
4.7 s 5.7 s
6.6 s
7.6 sDPage Weight BudgetAction2.5 MB transferred, 392 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
DJS Execution CostAction2228ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.forbes.ru/ | 907ms | 34ms | 4ms | 3rd |
| Unattributable | 402ms | 135ms | 0ms | 3rd |
| https://cdn.forbes.ru/_nuxt/CTd8KSU2.js | 351ms | 256ms | 3ms | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 211ms | 181ms | 18ms | 3rd |
| https://cdn.forbes.ru/_nuxt/By9ChDje.js | 205ms | 95ms | 0ms | 3rd |
| https://privacy-cs.mail.ru/static/sync-loader.js | 82ms | 71ms | 1ms | 3rd |
| https://yandex.ru/ads/system/context.js | 69ms | 31ms | 9ms | 3rd |
FJS BundlesAction149 scripts, 814 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 0 KB | 177 KB (49%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 177 KB (49%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 177 KB (49%) | ✓ | 3rd |
| https://yastatic.net/partner-code-bundles/1304651/00cc0164cd639ddf.js | 130 KB | 105 KB (81%) | ✓ | 3rd |
| https://cdn.forbes.ru/_nuxt/CTd8KSU2.js | 105 KB | 56 KB (54%) | ✓ | 3rd |
| https://yandex.ru/ads/system/context.js | 104 KB | 53 KB (51%) | ✓ | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 85 KB | 43 KB (51%) | ✓ | 3rd |
| https://tag.digitaltarget.ru/adcm.js | 34 KB | 24 KB (72%) | ✓ | 3rd |
| https://cdn.forbes.ru/_nuxt/DGp9E_dS.js | 0 KB | — | ✓ | 3rd |
| https://banners.adfox.ru/220805/adfox/1323648/3620013/gwdtaparea_min.js | 2 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
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 InventoryAction392 resources · 2.5 MB · 814 KB savings availableFIX
~813.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 392 resources | 2.5 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction46 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
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 Loading51 fonts (554 KB)PASS
Web fonts
51
554 KB total
Render-blocking
0
of 51
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- 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 ~46 KB and ~92 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall392 requests over 6134msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.forbes.ru www.forbes.ru | Other | 907ms | 76 KB | — | ₽269/mo | Costly |
Unattributable Unattributable | Other | 402ms | 0 KB | — | ₽119/mo | Costly |
cdn.forbes.ru cdn.forbes.ru | Other | 351ms | 105 KB | 54% | ₽104/mo | Costly |
www.gstatic.com www.gstatic.com | Other | 211ms | 0 KB | 49% | ₽63/mo | Costly |
cdn.forbes.ru cdn.forbes.ru | Other | 205ms | 65 KB | — | ₽61/mo | Costly |
privacy-cs.mail.ru privacy-cs.mail.ru | Other | 82ms | 22 KB | — | ₽24/mo | Optional |
yandex.ru yandex.ru | Other | 69ms | 104 KB | 51% | ₽21/mo | Optional |
These scripts may cost more than they're worth
- www.forbes.ru adds 907ms and costs ~₽269/month
- Unattributable adds 402ms and costs ~₽119/month
- cdn.forbes.ru adds 351ms and costs ~₽104/month
- www.gstatic.com adds 211ms and costs ~₽63/month
- cdn.forbes.ru adds 205ms and costs ~₽61/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.forbes.ru takes 907ms 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 402ms 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
cdn.forbes.ru takes 351ms 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
54% of cdn.forbes.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
www.gstatic.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
cdn.forbes.ru takes 205ms 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 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