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https://most.gov.cn

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
79
GRADE
C
FIX
4
REVIEW
3
PASS
8
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
30
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
67
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
73
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

5.07 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

9.38 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

2.23 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.

8.58 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.

12.18 s

Page Load Progression

586 ms
1.2 s
1.8 s
2.3 s
2.9 s
3.5 s
4.1 s
4.7 s
Checks
17
8 PASS 3 REVIEW 4 FIX
D
Page Weight Budget
Action
2.5 MB transferred, 86 requests
FIX
2.5 MB transferred, 86 requests
Warning::
Page weighs 2.4 MB (2.5 MB transferred)
Warning::
Images are 1.7 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.7 MB
Info::
86 HTTP requests
Info::
Estimated 0.51 g CO2 per page load
2.5 MB / 2.4 MB budget
2.5 MB transferred
86 requests
0.51 g CO2 per page load
Images 1.7 MiB 68%
JavaScript 496.2 KiB 20%
CSS 136.9 KiB 5%
HTML 124.1 KiB 5%
Other 34.2 KiB 1%
Fonts 5.9 KiB 0%
Other 279 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

F
JS Execution Cost
Action
4350ms total JS execution
FIX
4350ms total JS execution
Warning::
https://most.gov.cn/gjlm/footer/page_footer.js?t=2...: 2801ms CPU time
Warning::
https://most.gov.cn/index.html: 571ms CPU time
Warning::
Unattributable: 472ms CPU time
Warning::
https://most.gov.cn/assets/js/swiper-bundle.min.js...: 315ms CPU time
Info::
https://most.gov.cn/assets/js/jquery-3.0.0.min.js?...: 137ms CPU time
Info::
Third-party scripts: 526ms (12% of total)

Main Thread Breakdown

Script Evaluation 69% Other 15% Style & Layout 11% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://most.gov.cn/gjlm/footer/page_footer.js?t=202607221007052801ms2796ms3ms1st
https://most.gov.cn/index.html571ms82ms4ms1st
Unattributable472ms12ms0ms3rd
https://most.gov.cn/assets/js/swiper-bundle.min.js?t=20260722100702315ms13ms17ms1st
https://most.gov.cn/assets/js/jquery-3.0.0.min.js?t=20260722100702137ms91ms8ms1st
https://xwfx.most.gov.cn/wea/__wea/krewea_all.min.js54ms35ms18ms3rd
D
JS Bundles
Action
24 scripts, 232 KB unused
FIX
24 scripts, 232 KB unused
Warning::
https://xwfx.most.gov.cn/wea/__wea/krewea_all.min....: 113 KB unused (64%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://most.gov.cn/assets/js/swiper-bundle.min.js...: 87 KB unused (60%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://most.gov.cn/assets/js/jquery-3.0.0.min.js?...: 32 KB unused (38%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://most.gov.cn/gjlm/nav/page_nav.js?t=2026072...: unminified — 5 KB could be saved
Info::
Total unused JavaScript: 232 KB
232 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://xwfx.most.gov.cn/wea/__wea/krewea_all.min.js178 KB113 KB (64%)✓3rd
https://most.gov.cn/assets/js/swiper-bundle.min.js?t=20260722100702145 KB87 KB (60%)✓1st
https://most.gov.cn/assets/js/jquery-3.0.0.min.js?t=2026072210070285 KB32 KB (38%)✓1st
https://most.gov.cn/gjlm/top/page_topline.js?t=202607221007023 KB—✓1st
https://most.gov.cn/gjlm/nav/page_nav.js?t=2026072210070212 KB—✗1st
https://most.gov.cn/assets/js/index_search_top.js?t=202607221007023 KB—✓1st
https://most.gov.cn/assets/js/menu_work.js?t=202607221007024 KB—✓1st
https://most.gov.cn/assets/js/menu_bottom.js?t=202607221007021 KB—✓1st
https://most.gov.cn/assets/js/jquery.SuperSlide.js?t=2026072210070211 KB—✓1st
https://most.gov.cn/assets/js/trs_h5.js?t=202607221007023 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

D
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
Info::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

C
Image Optimization
Action
40 images, 0 KB saveable
REVIEW
40 images, 0 KB saveable
Warning::
https://most.gov.cn/assets/images/logo.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://most.gov.cn/exposure/images/jiucuo.png?v=b... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://most.gov.cn/assets/images/emblem170.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
40 images 1.7 MB
0 oversized -0 KB
39 legacy format
3 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

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

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

C
Page Weight Inventory
Action
86 resources · 2.5 MB · 232 KB savings available
REVIEW
86 resources · 2.5 MB · 232 KB savings available
Warning::
Page weight 1.5 MB over 1MB target
Got: 2.5 MB Expected: ≤ 1 MB
Info::
~232 KB of savings available
Info::
4 third-party resources (7% of weight)
Info::
1 resources over 200KB
86 resources · 2.5 MiB · 4 third-party 1.5 MiB over 1MB target
Image 68% · 1.7 MiB
JavaScript 21% · 530.5 KiB
CSS 5% · 136.9 KiB
Document 5% · 124.1 KiB
Font 0% · 5.9 KiB
Other 0% · 279 B

~232.5 KiB of savings available

Remove unused JavaScript: 232.5 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Third-Party Impact
7% third-party, 0 ms blocking
PASS
7% third-party, 0 ms blocking
Info::
Third-party code accounts for 7% of page weight (178.6 KiB of 2.5 MiB)
Info::
Third-party blocking time is low (0 ms)
93%
First-party Third-party
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
1 fonts (6 KB)
PASS
1 fonts (6 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

6 KB total

Render-blocking

0

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 5.1 s LCP 9.4 shttps://most.gov.cn/assets/mobile_iconfont/iconfont.woff2?t=1726045092400iconfont.woff2 https://most.gov.cn/assets/mobile_iconfont/iconfont.woff2?t=1726045092400 — 5.9 KiB — 539 ms — font-display: swap
iconfont.woff2 woff2 swap
Size 6 KB
Load time 539 ms
Start 4.5 s
Risk FOUT — text flashes from fallback to web font
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 Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
Network Waterfall
86 requests over 8622ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 5.1 s LCP 9.4 shttps://most.gov.cn// https://most.gov.cn/ — 200 — 396 B — 1.1 s — http/1.1https://most.gov.cn/index.html/index.html https://most.gov.cn/index.html — 200 — 123.7 KiB — 1.6 s — http/1.1https://most.gov.cn/favicon.ico/favicon.ico https://most.gov.cn/favicon.ico — -1 — 0 B — 274 ms — https://most.gov.cn/assets/iconfont/iconfont.css?t=20260722100702/assets/iconfont/iconfont.css?t=202... https://most.gov.cn/assets/iconfont/iconfont.css?t=20260722100702 — 200 — 2.9 KiB — 274 ms — http/1.1https://most.gov.cn/assets/mobile_iconfont/iconfont.css?t=20260722100702/assets/mobile_iconfont/iconfont.cs... https://most.gov.cn/assets/mobile_iconfont/iconfont.css?t=20260722100702 — 200 — 3.0 KiB — 545 ms — http/1.1https://most.gov.cn/assets/css/swiper-bundle.min.css?t=20260722100702/assets/css/swiper-bundle.min.css?t... https://most.gov.cn/assets/css/swiper-bundle.min.css?t=20260722100702 — 200 — 16.3 KiB — 1.6 s — http/1.1https://most.gov.cn/assets/css/style.css?t=20260722100702/assets/css/style.css?t=20260722100... https://most.gov.cn/assets/css/style.css?t=20260722100702 — 200 — 30.3 KiB — 1.1 s — http/1.1https://most.gov.cn/assets/css/mobile_style.css?t=20260722100702/assets/css/mobile_style.css?t=2026... https://most.gov.cn/assets/css/mobile_style.css?t=20260722100702 — 200 — 47.0 KiB — 2.2 s — http/1.1https://most.gov.cn/assets/css/topline_menu.css?t=20260722100702/assets/css/topline_menu.css?t=2026... https://most.gov.cn/assets/css/topline_menu.css?t=20260722100702 — 200 — 3.4 KiB — 1.1 s — http/1.1https://most.gov.cn/assets/css/mobile_topline_menu.css?t=20260722100702/assets/css/mobile_topline_menu.css... https://most.gov.cn/assets/css/mobile_topline_menu.css?t=20260722100702 — 200 — 1.7 KiB — 1.1 s — http/1.1https://most.gov.cn/assets/css/search_top.css?t=20260722100702/assets/css/search_top.css?t=202607... https://most.gov.cn/assets/css/search_top.css?t=20260722100702 — 200 — 2.9 KiB — 1.4 s — http/1.1https://most.gov.cn/assets/css/dropdown.css?t=20260722100702/assets/css/dropdown.css?t=20260722... https://most.gov.cn/assets/css/dropdown.css?t=20260722100702 — 200 — 2.3 KiB — 1.4 s — http/1.1https://most.gov.cn/assets/css/menu.css?t=20260722100702/assets/css/menu.css?t=202607221007... https://most.gov.cn/assets/css/menu.css?t=20260722100702 — 200 — 3.6 KiB — 1.4 s — http/1.1https://most.gov.cn/assets/css/mobile_menu.css?t=20260722100702/assets/css/mobile_menu.css?t=20260... https://most.gov.cn/assets/css/mobile_menu.css?t=20260722100702 — 200 — 1.2 KiB — 1.6 s — http/1.1https://most.gov.cn/assets/css/home.css?t=20260722100702/assets/css/home.css?t=202607221007... https://most.gov.cn/assets/css/home.css?t=20260722100702 — 200 — 9.7 KiB — 1.6 s — http/1.1https://most.gov.cn/assets/css/mobile_home.css?t=20260722100702/assets/css/mobile_home.css?t=20260... https://most.gov.cn/assets/css/mobile_home.css?t=20260722100702 — 200 — 5.2 KiB — 1.6 s — http/1.1https://most.gov.cn/assets/css/slides.css?t=20260722100702/assets/css/slides.css?t=2026072210... https://most.gov.cn/assets/css/slides.css?t=20260722100702 — 200 — 3.1 KiB — 1.7 s — http/1.1https://most.gov.cn/assets/css/mobile_slides.css?t=20260722100702/assets/css/mobile_slides.css?t=202... https://most.gov.cn/assets/css/mobile_slides.css?t=20260722100702 — 200 — 524 B — 1.9 s — http/1.1https://most.gov.cn/assets/css/leftloop.css?t=20260722100702/assets/css/leftloop.css?t=20260722... https://most.gov.cn/assets/css/leftloop.css?t=20260722100702 — 200 — 2.2 KiB — 1.9 s — http/1.1https://most.gov.cn/assets/js/jquery-3.0.0.min.js?t=20260722100702/assets/js/jquery-3.0.0.min.js?t=20... https://most.gov.cn/assets/js/jquery-3.0.0.min.js?t=20260722100702 — 200 — 84.5 KiB — 2.4 s — http/1.1https://most.gov.cn/assets/js/slides.min.jquery.js?t=20260722100702/assets/js/slides.min.jquery.js?t=2... https://most.gov.cn/assets/js/slides.min.jquery.js?t=20260722100702 — 200 — 6.9 KiB — 1.9 s — http/1.1https://most.gov.cn/assets/js/swiper-bundle.min.js?t=20260722100702/assets/js/swiper-bundle.min.js?t=2... https://most.gov.cn/assets/js/swiper-bundle.min.js?t=20260722100702 — 200 — 144.9 KiB — 3.1 s — http/1.1https://most.gov.cn/assets/js/slides.home.js?t=20260722100702/assets/js/slides.home.js?t=2026072... https://most.gov.cn/assets/js/slides.home.js?t=20260722100702 — 200 — 2.5 KiB — 2.1 s — http/1.1https://most.gov.cn/assets/iconfont/iconfont.js?t=20260722100702/assets/iconfont/iconfont.js?t=2026... https://most.gov.cn/assets/iconfont/iconfont.js?t=20260722100702 — 200 — 30.7 KiB — 2.7 s — http/1.1https://most.gov.cn/assets/js/index_search_top.js?t=20260722100702/assets/js/index_search_top.js?t=20... https://most.gov.cn/assets/js/index_search_top.js?t=20260722100702 — 200 — 2.5 KiB — 2.2 s — http/1.1https://most.gov.cn/assets/js/menu_work.js?t=20260722100702/assets/js/menu_work.js?t=202607221... https://most.gov.cn/assets/js/menu_work.js?t=20260722100702 — 200 — 3.9 KiB — 2.4 s — http/1.1https://most.gov.cn/assets/js/menu_bottom.js?t=20260722100702/assets/js/menu_bottom.js?t=2026072... https://most.gov.cn/assets/js/menu_bottom.js?t=20260722100702 — 200 — 798 B — 2.4 s — http/1.1https://most.gov.cn/assets/js/jquery.SuperSlide.js?t=20260722100702/assets/js/jquery.SuperSlide.js?t=2... https://most.gov.cn/assets/js/jquery.SuperSlide.js?t=20260722100702 — 200 — 11.4 KiB — 2.5 s — http/1.1https://most.gov.cn/assets/js/trs_h5.js?t=20260722100702/assets/js/trs_h5.js?t=202607221007... https://most.gov.cn/assets/js/trs_h5.js?t=20260722100702 — 200 — 2.9 KiB — 2.7 s — http/1.1https://most.gov.cn/assets/js/trs_resize.js?t=20260722100702/assets/js/trs_resize.js?t=20260722... https://most.gov.cn/assets/js/trs_resize.js?t=20260722100702 — 200 — 3.1 KiB — 2.7 s — http/1.1
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 5.1 s LCP 9.4 shttps://most.gov.cn// https://most.gov.cn/ — 200 — 396 B — 1.1 s — http/1.1https://most.gov.cn/index.html/index.html https://most.gov.cn/index.html — 200 — 123.7 KiB — 1.6 s — http/1.1https://most.gov.cn/favicon.ico/favicon.ico https://most.gov.cn/favicon.ico — -1 — 0 B — 274 ms — https://most.gov.cn/assets/iconfont/iconfont.css?t=20260722100702/assets/iconfont/iconfont.css?t=202... https://most.gov.cn/assets/iconfont/iconfont.css?t=20260722100702 — 200 — 2.9 KiB — 274 ms — http/1.1https://most.gov.cn/assets/mobile_iconfont/iconfont.css?t=20260722100702/assets/mobile_iconfont/iconfont.cs... https://most.gov.cn/assets/mobile_iconfont/iconfont.css?t=20260722100702 — 200 — 3.0 KiB — 545 ms — http/1.1https://most.gov.cn/assets/css/swiper-bundle.min.css?t=20260722100702/assets/css/swiper-bundle.min.css?t... https://most.gov.cn/assets/css/swiper-bundle.min.css?t=20260722100702 — 200 — 16.3 KiB — 1.6 s — http/1.1https://most.gov.cn/assets/css/style.css?t=20260722100702/assets/css/style.css?t=20260722100... https://most.gov.cn/assets/css/style.css?t=20260722100702 — 200 — 30.3 KiB — 1.1 s — http/1.1https://most.gov.cn/assets/css/mobile_style.css?t=20260722100702/assets/css/mobile_style.css?t=2026... https://most.gov.cn/assets/css/mobile_style.css?t=20260722100702 — 200 — 47.0 KiB — 2.2 s — http/1.1https://most.gov.cn/assets/css/topline_menu.css?t=20260722100702/assets/css/topline_menu.css?t=2026... https://most.gov.cn/assets/css/topline_menu.css?t=20260722100702 — 200 — 3.4 KiB — 1.1 s — http/1.1https://most.gov.cn/assets/css/mobile_topline_menu.css?t=20260722100702/assets/css/mobile_topline_menu.css... https://most.gov.cn/assets/css/mobile_topline_menu.css?t=20260722100702 — 200 — 1.7 KiB — 1.1 s — http/1.1https://most.gov.cn/assets/css/search_top.css?t=20260722100702/assets/css/search_top.css?t=202607... https://most.gov.cn/assets/css/search_top.css?t=20260722100702 — 200 — 2.9 KiB — 1.4 s — http/1.1https://most.gov.cn/assets/css/dropdown.css?t=20260722100702/assets/css/dropdown.css?t=20260722... https://most.gov.cn/assets/css/dropdown.css?t=20260722100702 — 200 — 2.3 KiB — 1.4 s — http/1.1https://most.gov.cn/assets/css/menu.css?t=20260722100702/assets/css/menu.css?t=202607221007... https://most.gov.cn/assets/css/menu.css?t=20260722100702 — 200 — 3.6 KiB — 1.4 s — http/1.1https://most.gov.cn/assets/css/mobile_menu.css?t=20260722100702/assets/css/mobile_menu.css?t=20260... https://most.gov.cn/assets/css/mobile_menu.css?t=20260722100702 — 200 — 1.2 KiB — 1.6 s — http/1.1https://most.gov.cn/assets/css/home.css?t=20260722100702/assets/css/home.css?t=202607221007... https://most.gov.cn/assets/css/home.css?t=20260722100702 — 200 — 9.7 KiB — 1.6 s — http/1.1https://most.gov.cn/assets/css/mobile_home.css?t=20260722100702/assets/css/mobile_home.css?t=20260... https://most.gov.cn/assets/css/mobile_home.css?t=20260722100702 — 200 — 5.2 KiB — 1.6 s — 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
12% of JavaScript execution is third-party
First-party Third-party 526ms · 178KB · ¥26/mo
Unattributable
Other
Costly
Execution 472ms
Transfer 0 KB
Monthly Cost ¥23/mo
xwfx.most.gov.cn
Other
Optional
Execution 54ms
Transfer 178 KB
Unused 64%
Monthly Cost ¥3/mo

These scripts may cost more than they're worth

  • Unattributable adds 472ms and costs ~¥23/month

Unattributable takes 472ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

64% of xwfx.most.gov.cn'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

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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