Performance
· 28 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.
1.08 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
12.05 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.46 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.
4.63 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.
24.72 s
Page Load Progression
FPage Weight BudgetAction7.0 MB transferred, 121 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
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 ImpactAction83% third-party, 0 ms blockingFIX
FJS Execution CostAction4781ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://wanwuu.com/static/web/js/plugins/lazyload.js?v=1.1.6 | 2197ms | 2057ms | 1ms | 1st |
| https://wanwuu.com/ | 717ms | 11ms | 3ms | 1st |
| Unattributable | 630ms | 55ms | 0ms | 1st |
| https://wanwuu.com/static/web/js/web-sdk-v1.1.8.js?v=1.0.1.4 | 576ms | 492ms | 8ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-09T7SQXYMB | 256ms | 204ms | 51ms | 3rd |
| https://mc.yandex.ru/metrika/tag.js?id=105071685 | 177ms | 147ms | 20ms | 3rd |
| https://wanwuu.com/static/web/js/lib/require.js | 136ms | 121ms | 2ms | 1st |
| https://wanwuu.com/static/web/js/web_tracker_v18.js?v=1.0.1.4 | 91ms | 68ms | 6ms | 1st |
DJS BundlesAction24 scripts, 169 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-09T7SQXYMB | 177 KB | 74 KB (42%) | ✓ | 3rd |
| https://wanwuu.com/static/web/js/lib/html2canvas.js?v=1.1.6 | 67 KB | 40 KB (62%) | ✗ | 1st |
| https://mc.yandex.ru/metrika/tag.js?id=105071685 | 64 KB | 33 KB (51%) | ✓ | 3rd |
| https://wanwuu.com/static/web/js/lib/jquery.js?v=1.1.6 | 35 KB | 23 KB (65%) | ✓ | 1st |
| https://wanwuu.com/static/web/js/common.js?v=1.1.6 | 9 KB | — | ✗ | 1st |
| https://wanwuu.com/static/web/js/validate.js?v=1.1.6 | 1 KB | — | ✓ | 1st |
| https://wanwuu.com/static/web/js/lib/hls.js | 209 KB | — | ✓ | 1st |
| https://wanwuu.com/static/web/js/index_main.js | 3 KB | — | ✓ | 1st |
| https://wanwuu.com/static/web/js/web_tracker_v18.js?v=1.0.1.4 | 30 KB | — | ✓ | 1st |
| https://wanwuu.com/static/web/js/plugins/lazyload.js?v=1.1.6 | 3 KB | — | ✓ | 1st |
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
DPage Weight InventoryAction121 resources · 7.0 MB · 169 KB savings availableFIX
~169.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 121 resources | 7.0 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization40 images, 0 KB saveableREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font LoadingNo web fonts (system fonts)PASS
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints8 hints, 0 missing preconnectsPASS
Current Resource Hints
8 resource hints configured
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+Document CompressionDocument response uses brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall121 requests over 2307msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 256ms | 177 KB | 42% | ¥13/mo | Costly |
mc.yandex.ru mc.yandex.ru | Other | 177ms | 64 KB | 51% | ¥9/mo | Optional |
These scripts may cost more than they're worth
- Google Tag Manager adds 256ms and costs ~¥13/month
Google Tag Manager takes 256ms 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
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-09-23 — 2026-10-20)
LCP (p75)
1275 ms
89% good
INP (p75)
92 ms
94% good
CLS (p75)
0.000
98% good
FCP (p75)
835 ms
TTFB (p75)
680 ms
Image Optimization135 images, 7109 KB total, 3 KB wastedINFO
Image Optimization Audit
Total Images
135
Total Size
7109 KB
Oversized
1
Wasted
3 KB