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.
4.46 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.56 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.70 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.016
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
7.67 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.
16.60 s
Page Load Progression
376 ms
752 ms 1.1 s
1.5 s
1.9 s 2.3 s 2.6 s
3.0 sDThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction8434ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://cdn1.img.sputnikglobe.com/min/js/dist/head.js?9c9052ef3 | 3027ms | 2569ms | 9ms | 3rd |
| https://a.sputniknews.com/js/sputnik.js | 1358ms | 948ms | 5ms | 3rd |
| https://cdn.iubenda.com/cookie_solution/iubenda_cs/1.98.0/core-en.js | 809ms | 573ms | 52ms | 3rd |
| Unattributable | 808ms | 50ms | 0ms | 3rd |
| https://sputnikglobe.com/ | 695ms | 17ms | 10ms | 3rd |
| https://cdn.iubenda.com/cs/tcf/stub-v2.js | 597ms | 562ms | 0ms | 3rd |
| https://yandex.ru/ads/system/context.js | 398ms | 239ms | 32ms | 3rd |
| https://cdn1.img.sputnikglobe.com/min/js/dist/footer.js?979e8f65d | 231ms | 90ms | 73ms | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 206ms | 174ms | 24ms | 3rd |
| https://yastatic.net/partner-code-bundles/1304651/00cc0164cd639ddf.js | 128ms | 75ms | 53ms | 3rd |
Showing top 10 of 12 scripts
FJS BundlesAction27 scripts, 418 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn1.img.sputnikglobe.com/min/js/dist/footer.js?979e8f65d | 244 KB | 132 KB (55%) | ✗ | 3rd |
| https://yastatic.net/partner-code-bundles/1304651/00cc0164cd639ddf.js | 130 KB | 105 KB (81%) | ✓ | 3rd |
| https://yandex.ru/ads/system/context.js | 105 KB | 54 KB (52%) | ✓ | 3rd |
| https://cdn.iubenda.com/cookie_solution/iubenda_cs/1.98.0/core-en.js | 111 KB | 52 KB (48%) | ✓ | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 85 KB | 43 KB (51%) | ✓ | 3rd |
| https://cdn.iubenda.com/cs/tcf/safe-tcf-v2.js | 60 KB | 32 KB (54%) | ✓ | 3rd |
| https://cdn1.img.sputnikglobe.com/min/js/libs/locale/int.js?9368eb6d5 | 1 KB | — | ✓ | 3rd |
| https://cdn.iubenda.com/cons/iubenda_cons/core-8bf1bb16c848c35a646951d6dc3df100.js | 9 KB | — | ✓ | 3rd |
| https://cdn1.img.sputnikglobe.com/min/js/libs/textstream.js?9a86f1aa8 | 4 KB | — | ✓ | 3rd |
| https://cdn1.img.sputnikglobe.com/min/js/pages/ria.cells.js?95ee5e2b6 | 3 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 InventoryAction115 resources · 2.0 MB · 418 KB savings availableFIX
~417.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 115 resources | 2.0 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CPage Weight BudgetAction2.0 MB transferred, 115 requestsREVIEW
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
CImage OptimizationAction40 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
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 (237 KB)PASS
Web fonts
5
237 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)
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints7 hints, 0 missing preconnectsPASS
Current Resource Hints
7 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall115 requests over 31810msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
cdn1.img.sputnikglobe.com cdn1.img.sputnikglobe.com | Other | 3027ms | 40 KB | — | ₽1087/mo | Costly |
a.sputniknews.com a.sputniknews.com | Other | 1358ms | 19 KB | — | ₽487/mo | Costly |
Iubenda cdn.iubenda.com | Consent | 809ms | 111 KB | 48% | ₽290/mo | Essential |
Unattributable Unattributable | Other | 808ms | 0 KB | — | ₽290/mo | Costly |
sputnikglobe.com sputnikglobe.com | Other | 695ms | 30 KB | — | ₽250/mo | Costly |
Iubenda cdn.iubenda.com | Consent | 597ms | 2 KB | — | ₽214/mo | Essential |
yandex.ru yandex.ru | Other | 398ms | 105 KB | 52% | ₽143/mo | Costly |
cdn1.img.sputnikglobe.com cdn1.img.sputnikglobe.com | Other | 231ms | 244 KB | 55% | ₽83/mo | Costly |
mc.yandex.ru mc.yandex.ru | Other | 206ms | 85 KB | 51% | ₽74/mo | Costly |
yastatic.net yastatic.net | Other | 128ms | 130 KB | 81% | ₽46/mo | Optional |
Iubenda cdn.iubenda.com | Consent | 95ms | 60 KB | 54% | ₽34/mo | Essential |
yastatic.net yastatic.net | Other | 82ms | 32 KB | — | ₽29/mo | Optional |
These scripts may cost more than they're worth
- cdn1.img.sputnikglobe.com adds 3027ms and costs ~₽1087/month
- a.sputniknews.com adds 1358ms and costs ~₽487/month
- Unattributable adds 808ms and costs ~₽290/month
- sputnikglobe.com adds 695ms and costs ~₽250/month
- yandex.ru adds 398ms and costs ~₽143/month
- cdn1.img.sputnikglobe.com adds 231ms and costs ~₽83/month
- mc.yandex.ru adds 206ms and costs ~₽74/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
cdn1.img.sputnikglobe.com takes 3027ms 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
a.sputniknews.com takes 1358ms 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 808ms 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
sputnikglobe.com takes 695ms 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 398ms 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
52% 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
cdn1.img.sputnikglobe.com takes 231ms 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 cdn1.img.sputnikglobe.com'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 206ms 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
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
54% of Iubenda'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