Performance
· 15 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.
2.56 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.49 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
479 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.
4.06 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.
3.57 s
Page Load Progression
DPage Weight BudgetAction2.4 MB transferred, 87 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
DJS BundlesAction24 scripts, 229 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://xwfx.most.gov.cn/wea/__wea/krewea_all.min.js | 178 KB | 113 KB (64%) | ✓ | 3rd |
| https://most.gov.cn/assets/js/swiper-bundle.min.js?t=20260722100702 | 145 KB | 85 KB (58%) | ✓ | 1st |
| https://most.gov.cn/assets/js/jquery-3.0.0.min.js?t=20260722100702 | 85 KB | 32 KB (37%) | ✓ | 1st |
| https://most.gov.cn/gjlm/top/page_topline.js?t=20260722100702 | 3 KB | — | ✓ | 1st |
| https://most.gov.cn/gjlm/nav/page_nav.js?t=20260722100702 | 12 KB | — | ✗ | 1st |
| https://most.gov.cn/assets/js/index_search_top.js?t=20260722100702 | 3 KB | — | ✓ | 1st |
| https://most.gov.cn/assets/js/menu_work.js?t=20260722100702 | 4 KB | — | ✓ | 1st |
| https://most.gov.cn/assets/js/menu_bottom.js?t=20260722100702 | 1 KB | — | ✓ | 1st |
| https://most.gov.cn/assets/js/jquery.SuperSlide.js?t=20260722100702 | 11 KB | — | ✓ | 1st |
| https://most.gov.cn/assets/js/trs_h5.js?t=20260722100702 | 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
DHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction41 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
BJS Execution Cost997ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://most.gov.cn/gjlm/footer/page_footer.js?t=20260722100705 | 596ms | 594ms | 1ms | 1st |
| https://most.gov.cn/assets/js/swiper-bundle.min.js?t=20260722100702 | 200ms | 58ms | 3ms | 1st |
| Unattributable | 108ms | 3ms | 0ms | 3rd |
| https://most.gov.cn/index.html | 93ms | 18ms | 1ms | 1st |
CPage Weight InventoryAction87 resources · 2.4 MB · 229 KB savings availableREVIEW
~229.1 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 87 resources | 2.4 MiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Third-Party Impact7% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading1 fonts (6 KB)PASS
Web fonts
1
6 KB total
Render-blocking
0
of 1
Dominant font-display
swap
Most common across fonts
Font loading timeline
Optimization checklist
- Preload critical fonts (priority=high)
- Use woff2 format for all fonts
- Set font-display to swap, optional, or fallback
- Subset large fonts (≤100 KB each)
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall87 requests over 9941msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 108ms | 0 KB | — | ¥5/mo | Optional |