Performance
· 24 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.
445 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.26 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
164 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.
803 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.
2.26 s
Page Load Progression
FPage Weight BudgetAction6.0 MB transferred, 91 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
DThird-Party ImpactAction90% third-party, 0 ms blockingFIX
DJS BundlesAction24 scripts, 198 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-4HY4G5GBN1 | 177 KB | 73 KB (41%) | ✓ | 3rd |
| https://huangguoai.com/static/web/js/lib/ssp-core-v0.0.4-20260827.js | 56 KB | 48 KB (87%) | ✓ | 1st |
| https://mc.yandex.ru/metrika/tag.js?id=111548161 | 64 KB | 32 KB (51%) | ✓ | 3rd |
| https://huangguoai.com/static/web/js/ssp-mount.js?v=20261021001 | 52 KB | 24 KB (61%) | ✗ | 1st |
| https://huangguoai.com/static/web/js/lib/jquery.js?v=20261021001 | 36 KB | 21 KB (60%) | ✓ | 1st |
| https://huangguoai.com/static/web/js/main.js?v=20261021001 | 1 KB | — | ✓ | 1st |
| https://huangguoai.com/static/web/js/lib/require.js?v=20261021001 | 8 KB | — | ✓ | 1st |
| https://huangguoai.com/static/web/js/ssp-cache-scope.js?v=20261021001 | 2 KB | — | ✓ | 1st |
| https://huangguoai.com/static/web/js/home-tagrow.js?v=20261021001 | 3 KB | — | ✓ | 1st |
| https://huangguoai.com/static/web/js/pages/hg-auth-modal.js?v=20261021001 | 14 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
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 InventoryAction91 resources · 6.0 MB · 198 KB savings availableFIX
~198.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 91 resources | 6.0 MiB | ||||||
BImage Optimization23 images, 0 KB saveableREVIEW
CJS Execution CostAction1773ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://huangguoai.com/ | 892ms | 34ms | 10ms | 1st |
| Unattributable | 339ms | 29ms | 0ms | 1st |
| https://huangguoai.com/static/web/js/home-tagrow.js?v=20261021001 | 208ms | 196ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-4HY4G5GBN1 | 157ms | 138ms | 17ms | 3rd |
| https://mc.yandex.ru/metrika/tag.js?id=111548161 | 113ms | 98ms | 11ms | 3rd |
| https://huangguoai.com/static/web/js/lib/web-sdk-v1.2.0-20261020.js | 65ms | 4ms | 7ms | 1st |
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
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 HintsNo optimization neededPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML max-age=60 (≤ 5min) is appropriatePASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
A+HTTP Cachingmax-age=60 (1 minute)PASS
public, max-age=60, s-maxage=120, stale-while-revalidate=60
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 60 | Cache for 1 minute |
| s-maxage | 120 | CDN caches for 2 minutes |
| stale-while-revalidate | 60 | Serve stale for 1 minute while fetching fresh |
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall91 requests over 4021msINFO
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 | 157ms | 177 KB | 41% | ¥8/mo | Optional |
mc.yandex.ru mc.yandex.ru | Other | 113ms | 64 KB | 51% | ¥6/mo | Optional |
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)
1108 ms
92% good
INP (p75)
94 ms
94% good
CLS (p75)
0.000
98% good
FCP (p75)
854 ms
TTFB (p75)
469 ms
Image Optimization85 images, 2310 KB total, 33 KB wastedINFO
Image Optimization Audit
Total Images
85
Total Size
2310 KB
Oversized
1
Wasted
33 KB