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.
2.40 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
11.90 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.64 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.
6.19 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.
11.93 s
Page Load Progression
FPage Weight BudgetAction4.1 MB transferred, 120 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 ImpactAction85% third-party, 0 ms blockingFIX
FJS Execution CostAction19500ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://huangguoai.com/ | 13386ms | 124ms | 28ms | 1st |
| Unattributable | 2427ms | 120ms | 0ms | 1st |
| https://huangguoai.com/static/web/js/home-tagrow.js?v=20261021001 | 1526ms | 688ms | 1ms | 1st |
| https://huangguoai.com/static/web/js/lib/require.js?v=20261021001 | 526ms | 273ms | 2ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-4HY4G5GBN1 | 503ms | 419ms | 79ms | 3rd |
| https://mc.yandex.ru/metrika/tag.js?id=111548161 | 498ms | 440ms | 29ms | 3rd |
| https://huangguoai.com/static/web/js/lib/web-sdk-v1.2.0-20261020.js | 217ms | 28ms | 22ms | 1st |
| https://huangguoai.com/static/web/js/plugins/lazyload.js?v=20261021001 | 163ms | 110ms | 1ms | 1st |
| https://huangguoai.com/static/web/js/lib/zui.js?v=20261021001 | 87ms | 55ms | 10ms | 1st |
| https://huangguoai.com/static/web/js/lib/jquery.js?v=20261021001 | 86ms | 71ms | 10ms | 1st |
Showing top 10 of 11 scripts
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 (50%) | ✓ | 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 InventoryAction120 resources · 4.1 MB · 198 KB savings availableFIX
~197.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 120 resources | 4.1 MiB | ||||||
BImage Optimization43 images, 0 KB saveableREVIEW
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
BJavaScript Blocking2 JS blocking issue(s) detectedREVIEW
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
AResource Hints5 hints, 0 missing preconnectsPASS
Current Resource Hints
5 resource hints configured
preconnect already does the DNS lookup; adding dns-prefetch to the same origin is at best a no-op. Sample: https://pic.drleao.cn. Remove the redundant dns-prefetch entries.
Performance issues directly impact user engagement and conversion rates.
The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: https://pic.drleao.cn (preconnect+dns-prefetch).
Performance issues directly impact user engagement and conversion rates.
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+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
ACSS Performance Depth1 CSS depth issue(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 Waterfall120 requests over 41603msINFO
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 | 503ms | 177 KB | 41% | ¥25/mo | Costly |
mc.yandex.ru mc.yandex.ru | Other | 498ms | 64 KB | 50% | ¥25/mo | Costly |
These scripts may cost more than they're worth
- Google Tag Manager adds 503ms and costs ~¥25/month
- mc.yandex.ru adds 498ms and costs ~¥25/month
Google Tag Manager takes 503ms 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
mc.yandex.ru takes 498ms 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
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