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https://vkvideo.ru

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
69
GRADE
D
FIX
1
REVIEW
1
PASS
11
INFO
1

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
100
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
68
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
54
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

211 ms

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

211 ms

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.

0.000

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

680 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

211 ms

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
14
11 PASS 1 REVIEW 1 FIX
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: no-store
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-store

DirectiveValueMeaning
no-store—Never cache this response
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
11 KB transferred, 2 requests
PASS
11 KB transferred, 2 requests
Info::
Page weighs 27 KB (11 KB transferred)
Info::
2 HTTP requests
Info::
Estimated 0.00 g CO2 per page load
11 KB / 2.4 MB budget
11 KB transferred
2 requests
0.00 g CO2 per page load
HTML 10.1 KiB 90%
Other 1.1 KiB 10%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
No third-party resources
PASS
No third-party resources
Info::
No third-party resources detected
No third-party resources detected — all resources are first-party.
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Image Optimization
No images on this page
PASS
No images on this page
Info::
No images on this page
0 images 0 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
No JS execution data
PASS
No JS execution data
Info::
No significant JS execution detected

Main Thread Breakdown

Other 49% Style & Layout 30% Script Evaluation 11% Parse HTML & CSS 4% Script Parsing & Compilation 4%
A+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
A+
JS Bundles
No JavaScript
PASS
No JavaScript
Info::
No JavaScript bundles
No JavaScript files loaded.
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
Page Weight Inventory
2 resources · 11 KB · 0 KB savings available
PASS
2 resources · 11 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 11 KB
2 resources · 11.2 KiB · 0 third-party Within 1MB page-weight target
Document 100% · 11.2 KiB
Network Waterfall
2 requests over 937ms
INFO
0 ms 200 ms 400 ms 600 ms 800 ms FCP 211 ms LCP 211 mshttps://vkvideo.ru// https://vkvideo.ru/ — 302 — 1.1 KiB — 702 ms — h2https://vkvideo.ru/challenge.html?tid=1Tp5BoE7ESkg0C997ml6yf9cVaYrqw&hash429=AWrQ_SMDyAWD0FPM9nvc6Lx-7zX9LD7PL3035qWkkF1Vf2fDWhFdrN_e3Jw26ygj39ihR9CgcYUMRIlAbkBLoPmOI9Xz8CS7gktWWbIQftCTjh_P7rBAhbSnGaDk1CQRFpRHGKuLGyPCWOrU&redirect=/&sign=0aioye-hzEihcX2SFI1ckw&lang_id=/challenge.html?tid=1Tp5BoE7ESkg0C9... https://vkvideo.ru/challenge.html?tid=1Tp5BoE7ESkg0C997ml6yf9cVaYrqw&hash429=AWrQ_SMDyAWD0FPM9nvc6Lx-7zX9LD7PL3035qWkkF1Vf2fDWhFdrN_e3Jw26ygj39ihR9CgcYUMRIlAbkBLoPmOI9Xz8CS7gktWWbIQftCTjh_P7rBAhbSnGaDk1CQRFpRHGKuLGyPCWOrU&redirect=/&sign=0aioye-hzEihcX2SFI1ckw&lang_id= — 200 — 10.1 KiB — 233 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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