https://91porna.com
Performance
· 28 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
82
GRADE
B
FIX
4
REVIEW
3
PASS
16
INFO
5
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
51
82
100
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.20 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
29.09 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.03 s
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.
3.61 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.
29.11 s
Page Load Progression
499 ms
998 ms
1.5 s
2.0 s 2.5 s
3.0 s
3.5 s
4.0 sChecks
2816 PASS 3 REVIEW 4 FIX
FPage Weight BudgetAction4.5 MB transferred, 124 requestsFIX
Page Weight Budget
Action4.5 MB transferred, 124 requests
4.5 MB transferred, 124 requests
Critical::
Page weighs 5.4 MB (4.5 MB transferred)
Warning::
124 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.94 g CO2 per page load
4.5 MB transferred
124 requests
0.94 g CO2 per page load
Other 3.5 MiB 77%
Other 466.8 KiB 10%
JavaScript 456.2 KiB 10%
HTML 48.2 KiB 1%
Images 38.6 KiB 1%
CSS 21.6 KiB 0%
Other 555 B 0%
Other 306 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Why this matters
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction83% third-party, 0 ms blockingFIX
Third-Party Impact
Action83% third-party, 0 ms blocking
83% third-party, 0 ms blocking
Warning::
Third-party code accounts for 83% of page weight (3.7 MiB of 4.5 MiB)
Info::
Third-party blocking time is low (0 ms)
17%
83%
First-party Third-party
FJS Execution CostAction3935ms total JS executionFIX
JS Execution Cost
Action3935ms total JS execution
3935ms total JS execution
Warning::
https://91porna.com/static/web/js/plugins/lazyload...: 1418ms CPU time
Warning::
https://91porna.com/: 696ms CPU time
Warning::
Unattributable: 608ms CPU time
Warning::
https://91porna.com/static/web/js/web-sdk-v1.1.8.j...: 548ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-R4PB...: 281ms CPU time
Info::
Third-party scripts: 478ms (12% of total)
Main Thread Breakdown
Script Evaluation 62% Other 17% Style & Layout 11% Rendering 4%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://91porna.com/static/web/js/plugins/lazyload.js?v=1.0.1.110 | 1418ms | 1341ms | 2ms | 1st |
| https://91porna.com/ | 696ms | 12ms | 9ms | 1st |
| Unattributable | 608ms | 48ms | 0ms | 1st |
| https://91porna.com/static/web/js/web-sdk-v1.1.8.js?v=1.0.1.4 | 548ms | 452ms | 10ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-R4PBHCTFZN | 281ms | 242ms | 36ms | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 197ms | 172ms | 16ms | 3rd |
| https://91porna.com/static/web/js/lib/require.js | 103ms | 91ms | 2ms | 1st |
| https://91porna.com/static/web/js/web_tracker_v18.js?v=1.0.1.4 | 84ms | 65ms | 5ms | 1st |
DPage Weight InventoryAction124 resources · 4.5 MB · 130 KB savings availableFIX
Page Weight Inventory
Action124 resources · 4.5 MB · 130 KB savings available
124 resources · 4.5 MB · 130 KB savings available
Warning::
Page weight 4.5 MB exceeds 1 MB target by 3.5 MB
Got: 4.5 MB Expected: ≤ 1 MB
Info::
~130 KB of savings available
Warning::
74 third-party resources (83% of weight)
Info::
9 resources over 200KB
124 resources · 4.5 MiB · 74 third-party 3.5 MiB over 1MB target
Other 77% · 3.5 MiB
JavaScript 19% · 851.7 KiB
Image 2% · 90.2 KiB
Document 1% · 51.2 KiB
CSS 1% · 37.9 KiB
~129.6 KiB of savings available
Remove unused JavaScript: 129.6 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 124 resources | 4.5 MiB | ||||||
BImage Optimization41 images, 0 KB saveableREVIEW
Image Optimization
41 images, 0 KB saveable
41 images, 0 KB saveable
Info::
All images are well-optimized
41 images 39 KB
0 oversized -0 KB
18 legacy format
0 missing dimensions CLS risk
BJS Bundles25 scripts, 130 KB unusedREVIEW
JS Bundles
25 scripts, 130 KB unused
25 scripts, 130 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-R4PB...: 69 KB unused (38%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://mc.yandex.ru/metrika/tag.js: 38 KB unused (56%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://91porna.com/static/web/js/lib/jquery.js?v=...: 23 KB unused (65%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 130 KB
130 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-R4PBHCTFZN | 180 KB | 69 KB (38%) | ✓ | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 69 KB | 38 KB (56%) | ✓ | 3rd |
| https://91porna.com/static/web/js/lib/jquery.js?v=1.0.1.110 | 35 KB | 23 KB (65%) | ✓ | 1st |
| https://91porna.com/static/web/js/video_helper.js?v=1.0.1.110 | 2 KB | — | ✓ | 1st |
| https://91porna.com/static/web/js/lib/crypto.js?v=1.0.1.110 | 26 KB | — | ✓ | 1st |
| https://91porna.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js | 1 KB | — | ✓ | 1st |
| https://analytics.ahrefs.com/analytics.js | 3 KB | — | ✓ | 3rd |
| https://91porna.com/static/web/js/web_tracker_v18.js?v=1.0.1.4 | 30 KB | — | ✓ | 1st |
| https://91porna.com/static/web/js/index_main.js?v=1.0.1.110 | 3 KB | — | ✓ | 1st |
| https://91porna.com/static/web/js/crypto-js.min.js?v=1.0.1.2 | 19 KB | — | ✓ | 1st |
Consider code splitting or tree shaking to reduce unused code.
Why this matters
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.
Why this matters
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.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
Server-Timing Observability
No Server-Timing header found
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
A+Text CompressionAll text resources are compressedPASS
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+Font LoadingNo web fonts (system fonts)PASS
Font Loading
No web fonts (system fonts)
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
A+Resource CachingAll resources properly cachedPASS
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource Hints6 hints, 0 missing preconnectsPASS
Resource Hints
6 hints, 0 missing preconnects
6 hints, 0 missing preconnects
Info::
Page uses 6 resource hint(s)
Current Resource Hints
preconnect—
preload—
dns-prefetch—
prefetch 6
6 resource hints configured
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+Document CompressionDocument response uses brotliPASS
Document Compression
Document response uses brotli
Document response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
A+LCP Image PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Main HTML Cache-ControlMain HTML max-age=120 (≤ 5min) is appropriatePASS
Main HTML Cache-Control
Main HTML max-age=120 (≤ 5min) is appropriate
Main HTML max-age=120 (≤ 5min) is appropriate
Info::
Main HTML max-age=120 (≤ 5min) is appropriate
Got: max-age=120
A+Server Response Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
Info::
`Vary` header declared: Accept-Encoding
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
`Last-Modified` present -- timestamp-based conditional GET supported
Consider also setting `ETag` for stronger revalidation -- ETags are content hashes that don't suffer from clock-skew or DST issues. Last-Modified alone is functional for conditional GETs and not a bug.
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
Render-Blocking Resources
No render-blocking resources detected
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+Third-Party ResourcesNo third-party resources detectedPASS
Third-Party Resources
No third-party resources detected
No third-party resources detected
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
JavaScript Blocking
1 JS blocking issue(s) detected
1 JS blocking issue(s) detected
Warning::
Total JS execution time is 3.9 s -- over the 3.5s budget
Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
CSS Performance Depth
1 CSS depth issue(s) detected
1 CSS depth issue(s) detected
Warning::
4 render-blocking stylesheet(s) -- recommended: <=3
Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
A+HTTP Cachingmax-age=120 (2 minutes)PASS
HTTP Caching
max-age=120 (2 minutes)
max-age=120 (2 minutes)
Info::
Cache-Control header is set
Got: max-age=120
Info::
Effective TTL: 2 minutes (max-age=120)
Info::
Last-Modified header present
Cache-Control
max-age=120
| Directive | Value | Meaning |
|---|---|---|
| max-age | 120 | Cache for 2 minutes |
Effective TTL: 120 seconds
Asset CompressionNo text asset hosts to measureINFO
Asset Compression
No text asset hosts to measure
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall124 requests over 1771msINFO
Network Waterfall
124 requests over 1771ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
12% of JavaScript execution is third-party
First-party Third-party 478ms · 249KB · ¥24/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 281ms | 180 KB | 38% | ¥14/mo | Costly |
mc.yandex.ru mc.yandex.ru | Other | 197ms | 69 KB | 56% | ¥10/mo | Optional |
Google Tag Manager
Tag Manager
Execution 281ms
Transfer 180 KB
Unused 38%
Monthly Cost ¥14/mo
mc.yandex.ru
Other
Execution 197ms
Transfer 69 KB
Unused 56%
Monthly Cost ¥10/mo
These scripts may cost more than they're worth
- Google Tag Manager adds 281ms and costs ~¥14/month
Google Tag Manager takes 281ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
56% of mc.yandex.ru's code is unused. The script may be loading features you don't use.
Why this matters
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-09-23 — 2026-10-20)
LCP (p75)
1406 ms
88% good
INP (p75)
91 ms
95% good
CLS (p75)
0.000
97% good
FCP (p75)
691 ms
TTFB (p75)
410 ms
This origin passes Core Web Vitals assessment
Image Optimization137 images, 184 KB total, 64 KB wastedINFO
Image Optimization
137 images, 184 KB total, 64 KB wasted
Image Optimization Audit
Total Images
137
Total Size
184 KB
Oversized
2
Wasted
64 KB
137 missing dimensions 105 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.