https://91crdjai.com
Performance
· 28 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
90
GRADE
A
FIX
1
REVIEW
5
PASS
17
INFO
5
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
58
88
100
92
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
2.16 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
8.05 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
391 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.
6.31 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.
8.05 s
Page Load Progression
Checks
2817 PASS 5 REVIEW 1 FIX
DThird-Party ImpactAction64% third-party, 0 ms blockingFIX
Third-Party Impact
Action64% third-party, 0 ms blocking
64% third-party, 0 ms blocking
Warning::
Third-party code accounts for 64% of page weight (661.5 KiB of 1.0 MiB)
Info::
Third-party blocking time is low (0 ms)
36%
64%
First-party Third-party
BImage Optimization10 images, 0 KB saveableREVIEW
Image Optimization
10 images, 0 KB saveable
10 images, 0 KB saveable
Warning::
https://91crdjai.com/static/web/images/drama-logo.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
10 images 32 KB
0 oversized -0 KB
4 legacy format
1 missing dimensions CLS risk
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CJS Execution CostAction1918ms total JS executionREVIEW
JS Execution Cost
Action1918ms total JS execution
1918ms total JS execution
Warning::
https://91crdjai.com/static/web/js/lib/web-sdk-v1....: 539ms CPU time
Warning::
Unattributable: 330ms CPU time
Warning::
https://91crdjai.com/static/web/js/drama-shell.js?...: 308ms CPU time
Warning::
https://91crdjai.com/: 265ms CPU time
Info::
https://mc.yandex.ru/metrika/tag.js?id=113563465: 162ms CPU time
Info::
Third-party scripts: 162ms (8% of total)
Main Thread Breakdown
Script Evaluation 50% Other 22% Style & Layout 18% Rendering 4% Script Parsing & Compilation 4%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://91crdjai.com/static/web/js/lib/web-sdk-v1.2.0.js?v=20261110001 | 539ms | 462ms | 9ms | 1st |
| Unattributable | 330ms | 45ms | 0ms | 1st |
| https://91crdjai.com/static/web/js/drama-shell.js?v=20261110001 | 308ms | 13ms | 4ms | 1st |
| https://91crdjai.com/ | 265ms | 15ms | 5ms | 1st |
| https://mc.yandex.ru/metrika/tag.js?id=113563465 | 162ms | 139ms | 15ms | 3rd |
| https://91crdjai.com/static/web/js/lib/ssp-core-v0.0.4-20260827.js | 77ms | 66ms | 0ms | 1st |
| https://91crdjai.com/static/web/js/web_tracker_v18.js?v=20261110001 | 70ms | 65ms | 5ms | 1st |
| https://91crdjai.com/static/web/js/lib/require.js?v=20261110001 | 63ms | 58ms | 2ms | 1st |
| https://91crdjai.com/static/web/js/ssp-mount.js?v=20261110001 | 54ms | 42ms | 11ms | 1st |
| https://91crdjai.com/static/web/js/plugins/lazyload.js?v=20261110001 | 50ms | 22ms | 2ms | 1st |
BJS Bundles27 scripts, 82 KB unusedREVIEW
JS Bundles
27 scripts, 82 KB unused
27 scripts, 82 KB unused
Warning::
https://mc.yandex.ru/metrika/tag.js?id=113563465: 33 KB unused (51%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://91crdjai.com/static/web/js/lib/ssp-core-v0...: 28 KB unused (58%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://91crdjai.com/static/web/js/lib/jquery.js?v...: 22 KB unused (69%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 82 KB
82 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://mc.yandex.ru/metrika/tag.js?id=113563465 | 64 KB | 33 KB (51%) | ✓ | 3rd |
| https://91crdjai.com/static/web/js/lib/ssp-core-v0.0.4-20260827.js | 48 KB | 28 KB (58%) | ✓ | 1st |
| https://91crdjai.com/static/web/js/lib/jquery.js?v=20261110001 | 32 KB | 22 KB (69%) | ✓ | 1st |
| https://91crdjai.com/static/web/js/tracking-extras.js?v=20261110001 | 3 KB | — | ✓ | 1st |
| https://91crdjai.com/static/web/js/pages/drama-boot.js?v=20261110001 | 1 KB | — | ✓ | 1st |
| https://91crdjai.com/static/web/js/lib/crypto-js.min.js?v=20261110001 | 17 KB | — | ✓ | 1st |
| https://91crdjai.com/static/web/js/web_tracker_v18.js?v=20261110001 | 27 KB | — | ✓ | 1st |
| https://91crdjai.com/static/web/js/lib/require.js?v=20261110001 | 8 KB | — | ✓ | 1st |
| https://91crdjai.com/static/web/js/drama-avatar.js?v=20261110001 | 5 KB | — | ✓ | 1st |
| https://91crdjai.com/static/web/js/drama-shell.js?v=20261110001 | 14 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.
BJavaScript Blocking1 JS blocking issue(s) detectedREVIEW
JavaScript Blocking
1 JS blocking issue(s) detected
1 JS blocking issue(s) detected
Warning::
9 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
APage Weight Budget1.0 MB transferred, 72 requestsPASS
Page Weight Budget
1.0 MB transferred, 72 requests
1.0 MB transferred, 72 requests
Info::
Page weighs 1.9 MB (1.0 MB transferred)
Info::
72 HTTP requests
Info::
Estimated 0.21 g CO2 per page load
1.0 MB transferred
72 requests
0.21 g CO2 per page load
Other 592.2 KiB 57%
JavaScript 348.1 KiB 33%
Images 31.9 KiB 3%
CSS 26.1 KiB 3%
HTML 20.9 KiB 2%
Other 19.9 KiB 2%
Other 308 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget
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 HintsNo optimization neededPASS
Resource Hints
No optimization needed
No optimization needed
Info::
No resource hint issues
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=60 (≤ 5min) is appropriatePASS
Main HTML Cache-Control
Main HTML max-age=60 (≤ 5min) is appropriate
Main HTML max-age=60 (≤ 5min) is appropriate
Info::
Main HTML max-age=60 (≤ 5min) is appropriate
Got: public, max-age=60, s-maxage=300
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::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
APage Weight Inventory72 resources · 1.0 MB · 82 KB savings availablePASS
Page Weight Inventory
72 resources · 1.0 MB · 82 KB savings available
72 resources · 1.0 MB · 82 KB savings available
Warning::
Page weight 1.0 MB exceeds 1 MB target by 15 KB
Got: 1.0 MB Expected: ≤ 1 MB
Info::
~82 KB of savings available
Warning::
42 third-party resources (64% of weight)
72 resources · 1.0 MiB · 42 third-party 15.3 KiB over 1MB target
Image 41% · 431.0 KiB
JavaScript 33% · 348.1 KiB
Other 21% · 213.3 KiB
CSS 3% · 26.1 KiB
Document 2% · 20.9 KiB
~82.2 KiB of savings available
Remove unused JavaScript: 82.2 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 72 resources | 1.0 MiB | ||||||
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
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
CSS Performance Depth
No CSS performance depth issues detected
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
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=60 (1 minute)PASS
HTTP Caching
max-age=60 (1 minute)
max-age=60 (1 minute)
Info::
Cache-Control header is set
Got: public, max-age=60, s-maxage=300
Info::
Effective TTL: 1 minute (max-age=60)
Info::
CDN TTL: 5 minutes (s-maxage=300)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
public, max-age=60, s-maxage=300
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 60 | Cache for 1 minute |
| s-maxage | 300 | CDN caches for 5 minutes |
Effective TTL: 60 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 Waterfall72 requests over 4265msINFO
Network Waterfall
72 requests over 4265ms
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
8% of JavaScript execution is third-party
First-party Third-party 162ms · 64KB · ¥8/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
mc.yandex.ru mc.yandex.ru | Other | 162ms | 64 KB | 51% | ¥8/mo | Optional |
mc.yandex.ru
Other
Execution 162ms
Transfer 64 KB
Unused 51%
Monthly Cost ¥8/mo
51% 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 (2026-10-12 — 2026-11-08)
LCP (p75)
2265 ms
79% good
INP (p75)
122 ms
92% good
CLS (p75)
0.000
92% good
FCP (p75)
1195 ms
TTFB (p75)
565 ms
This origin passes Core Web Vitals assessment
Image Optimization47 images, 93 KB total, 0 KB wastedINFO
Image Optimization
47 images, 93 KB total, 0 KB wasted
Image Optimization Audit
Total Images
47
Total Size
93 KB
3 missing dimensions 2 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.