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https://22.cn

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
4
REVIEW
4
PASS
5
INFO
2

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

Mobile Desktop
56
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
69
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
83
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.

4.59 s

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

6.64 s

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

0 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.039

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

7.81 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.

6.64 s

Page Load Progression

1.7 s
3.3 s
5.0 s
6.6 s
8.3 s
9.9 s
11.6 s
13.3 s
Checks
15
5 PASS 4 REVIEW 4 FIX
F
Page Weight Budget
Action
4.8 MB transferred, 126 requests
FIX
4.8 MB transferred, 126 requests
Critical::
Page weighs 5.1 MB (4.8 MB transferred)
Warning::
Images are 3.7 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 3.7 MB
Info::
CSS is 432 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 432 KB
Warning::
126 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.0 g CO2 per page load
4.8 MB / 2.4 MB budget
4.8 MB transferred
126 requests
1.0 g CO2 per page load
Images 3.7 MiB 76%
JavaScript 472.4 KiB 10%
CSS 432.5 KiB 9%
HTML 247.3 KiB 5%
Other 5.3 KiB 0%
Other 1.5 KiB 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

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

Source: web.dev

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (4.8 MiB of 4.8 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Bundles
Action
18 scripts, 214 KB unused
FIX
18 scripts, 214 KB unused
Warning::
https://g.alicdn.com/aliyun-documentation/web-chat...: 98 KB unused (62%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.22.cn/Content/js/bootstrap.min.js: 40 KB unused (83%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.22.cn/Content/js/bootstrap.min.js: unminified — 11 KB could be saved
Warning::
https://www.22.cn/Content/bootstrap/dist/js/bootst...: 30 KB unused (82%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.22.cn/content/js/jquery-1.10.2.js: 27 KB unused (30%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.22.cn/content/js/jquery.flexslider.js: 20 KB unused (37%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.22.cn/content/js/jquery.flexslider.js: unminified — 23 KB could be saved
Info::
Total unused JavaScript: 214 KB
214 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://g.alicdn.com/aliyun-documentation/web-chatbot-ui/0.0.24/index.js157 KB98 KB (62%)✓3rd
https://www.22.cn/Content/js/bootstrap.min.js48 KB40 KB (83%)✗3rd
https://www.22.cn/Content/bootstrap/dist/js/bootstrap.min.js36 KB30 KB (82%)✓3rd
https://www.22.cn/content/js/jquery-1.10.2.js91 KB27 KB (30%)✓3rd
https://www.22.cn/content/js/jquery.flexslider.js54 KB20 KB (37%)✗3rd
https://www.22.cn/Content/js/am.extend.js?t=202009221 KB—✓3rd
https://www.22.cn/Content/layer/layer.js22 KB—✓3rd
https://www.22.cn/Content/layer/layer.ex.js?v=202405107 KB—✗3rd
https://www.22.cn/content/bootstrap/assets/js/ie-emulation-modes-warning.js2 KB—✓3rd
https://www.22.cn/Content/js/_top.js?t=2022111813 KB—✗3rd

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

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
Page Weight Inventory
Action
126 resources · 4.8 MB · 214 KB savings available
FIX
126 resources · 4.8 MB · 214 KB savings available
Warning::
Page weight 3.8 MB over 1MB target
Got: 4.8 MB Expected: ≤ 1 MB
Info::
~214 KB of savings available
Warning::
125 third-party resources (100% of weight)
Info::
4 resources over 200KB
126 resources · 4.8 MiB · 125 third-party 3.8 MiB over 1MB target
Image 76% · 3.7 MiB
JavaScript 10% · 472.4 KiB
CSS 9% · 432.5 KiB
Document 5% · 248.9 KiB
Other 0% · 3.8 KiB

~214.4 KiB of savings available

Remove unused JavaScript: 214.4 KiB
C
Image Optimization
Action
97 images, 0 KB saveable
REVIEW
97 images, 0 KB saveable
Warning::
https://www.22.cn/images/kf_weixin.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/content/images/22zsl.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/weixin_sidebar.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/icon_single_facile.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/icon_single_am02.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/phone_icon.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/weixin_xcx.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/icon_single_fast.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/wx2.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/kf_gzh.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/icon_single_am01.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/weixin_nav(1).jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/content/images/kefu_qiye_multi.p... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/wx_icon.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/kf_qq.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/kf_xcx.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/icon_single_am03.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/wx.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/kf_app.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/kf_tel.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/content/images/zsl.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/images/icon_single_safe.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.22.cn/Content/images/logo.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
97 images 3.7 MB
0 oversized -0 KB
97 legacy format
23 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

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

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

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

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

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

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

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

B
JS Execution Cost
752ms total JS execution
REVIEW
752ms total JS execution
Warning::
https://www.22.cn/: 373ms CPU time
Info::
Unattributable: 194ms CPU time
Info::
https://www.22.cn/content/js/jquery-1.10.2.js: 185ms CPU time
Warning::
Third-party scripts: 752ms (100% of total)

Main Thread Breakdown

Other 38% Rendering 22% Style & Layout 21% Script Evaluation 15%
ScriptTotalScriptingParse/CompileParty
https://www.22.cn/373ms7ms1ms3rd
Unattributable194ms15ms0ms3rd
https://www.22.cn/content/js/jquery-1.10.2.js185ms54ms2ms3rd
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
private
REVIEW
private
Info::
Cache-Control header is set
Got: private
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
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
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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
Network Waterfall
126 requests over 11264ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 4.6 s LCP 6.6 shttps://22.cn// https://22.cn/ — 301 — 141 B — 708 ms — h2https://www.22.cn/www.22.cn/ https://www.22.cn/ — 200 — 246.9 KiB — 3.0 s — http/1.1https://www.22.cn/Content/bootstrap/dist/css/bootstrap.min.csswww.22.cn/Content/bootstrap/dist/cs... https://www.22.cn/Content/bootstrap/dist/css/bootstrap.min.css — 200 — 118.8 KiB — 2.4 s — http/1.1https://www.22.cn/content/js/jquery-1.10.2.jswww.22.cn/content/js/jquery-1.10.2.... https://www.22.cn/content/js/jquery-1.10.2.js — 200 — 91.2 KiB — 2.6 s — http/1.1https://www.22.cn/content/js/common.js?t=20220315www.22.cn/content/js/common.js?t=20... https://www.22.cn/content/js/common.js?t=20220315 — 200 — 3.8 KiB — 801 ms — http/1.1https://www.22.cn/Content/bootstrap/dist/js/bootstrap.min.jswww.22.cn/Content/bootstrap/dist/js... https://www.22.cn/Content/bootstrap/dist/js/bootstrap.min.js — 200 — 36.4 KiB — 2.1 s — http/1.1https://www.22.cn/Content/js/jquery.cookie.jswww.22.cn/Content/js/jquery.cookie.... https://www.22.cn/Content/js/jquery.cookie.js — 200 — 988 B — 1.1 s — http/1.1https://www.22.cn/content/css/main.css?t=20221228www.22.cn/content/css/main.css?t=20... https://www.22.cn/content/css/main.css?t=20221228 — 200 — 288.6 KiB — 3.0 s — http/1.1https://www.22.cn/content/bootstrap/assets/js/ie-emulation-modes-warning.jswww.22.cn/content/bootstrap/assets/... https://www.22.cn/content/bootstrap/assets/js/ie-emulation-modes-warning.js — 200 — 2.4 KiB — 1.3 s — http/1.1https://www.22.cn/Content/js/bootstrap.min.jswww.22.cn/Content/js/bootstrap.min.... https://www.22.cn/Content/js/bootstrap.min.js — 200 — 47.8 KiB — 2.7 s — http/1.1https://www.22.cn/Content/layer/layer.jswww.22.cn/Content/layer/layer.js https://www.22.cn/Content/layer/layer.js — 200 — 21.9 KiB — 2.7 s — http/1.1https://www.22.cn/Content/layer/layer.ex.js?v=20240510www.22.cn/Content/layer/layer.ex.js... https://www.22.cn/Content/layer/layer.ex.js?v=20240510 — 200 — 6.6 KiB — 2.3 s — http/1.1https://www.22.cn/Content/js/am.extend.js?t=20200922www.22.cn/Content/js/am.extend.js?t... https://www.22.cn/Content/js/am.extend.js?t=20200922 — 200 — 1.0 KiB — 2.6 s — http/1.1https://www.22.cn/images/weixin_nav(1).jpgwww.22.cn/images/weixin_nav(1).jpg https://www.22.cn/images/weixin_nav(1).jpg — 200 — 7.7 KiB — 219 ms — http/1.1https://www.22.cn/content/images/app_qr_top.pngwww.22.cn/content/images/app_qr_top... https://www.22.cn/content/images/app_qr_top.png — 200 — 37.0 KiB — 1.1 s — http/1.1https://www.22.cn/content/images/xiaochengxu_wsp.jpgwww.22.cn/content/images/xiaochengx... https://www.22.cn/content/images/xiaochengxu_wsp.jpg — 200 — 16.5 KiB — 219 ms — http/1.1https://www.22.cn/Content/js/_top.js?t=20221118www.22.cn/Content/js/_top.js?t=2022... https://www.22.cn/Content/js/_top.js?t=20221118 — 200 — 12.6 KiB — 219 ms — http/1.1https://www.22.cn/js/SSOControl.js?t=20161117www.22.cn/js/SSOControl.js?t=201611... https://www.22.cn/js/SSOControl.js?t=20161117 — 200 — 6.2 KiB — 220 ms — http/1.1https://www.22.cn/Content/layer/theme/default/layer.css?v=3.1.1www.22.cn/Content/layer/theme/defau... https://www.22.cn/Content/layer/theme/default/layer.css?v=3.1.1 — 200 — 14.3 KiB — 217 ms — http/1.1https://www.22.cn/Content/layer/theme/am/style.csswww.22.cn/Content/layer/theme/am/st... https://www.22.cn/Content/layer/theme/am/style.css — 200 — 2.3 KiB — 308 ms — http/1.1https://www.22.cn/Content/images/logo.pngwww.22.cn/Content/images/logo.png https://www.22.cn/Content/images/logo.png — 200 — 10.1 KiB — 535 ms — http/1.1https://www.22.cn/Content/images/small_logo.pngwww.22.cn/Content/images/small_logo... https://www.22.cn/Content/images/small_logo.png — 200 — 6.4 KiB — 266 ms — http/1.1https://www.22.cn/content/images/icon_home.pngwww.22.cn/content/images/icon_home.... https://www.22.cn/content/images/icon_home.png — 200 — 59.2 KiB — 617 ms — http/1.1https://w.cnzz.com/c.php?id=906087&async=1w.cnzz.com/c.php?id=906087&async=1 https://w.cnzz.com/c.php?id=906087&async=1 — 200 — 375 B — 891 ms — h2https://hm.baidu.com/hm.js?c37800fabdf21cf4f786cb0d5f794f12hm.baidu.com/hm.js?c37800fabdf21cf4... https://hm.baidu.com/hm.js?c37800fabdf21cf4f786cb0d5f794f12 — 200 — 11.9 KiB — 711 ms — http/1.1https://www.22.cn/content/js/jquery.flexslider.jswww.22.cn/content/js/jquery.flexsli... https://www.22.cn/content/js/jquery.flexslider.js — 200 — 54.3 KiB — 427 ms — http/1.1https://www.22.cn/content/js/index.js?v=120520260423www.22.cn/content/js/index.js?v=120... https://www.22.cn/content/js/index.js?v=120520260423 — 200 — 14.3 KiB — 781 ms — http/1.1https://www.22.cn/images/kf_app.pngwww.22.cn/images/kf_app.png https://www.22.cn/images/kf_app.png — 200 — 1.6 KiB — 321 ms — http/1.1https://www.22.cn/images/kf_xcx.pngwww.22.cn/images/kf_xcx.png https://www.22.cn/images/kf_xcx.png — 200 — 1.7 KiB — 510 ms — http/1.1https://www.22.cn/content/images/new_bg.jpgwww.22.cn/content/images/new_bg.jpg https://www.22.cn/content/images/new_bg.jpg — 200 — 239.1 KiB — 2.3 s — http/1.1
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 4.6 s LCP 6.6 shttps://22.cn// https://22.cn/ — 301 — 141 B — 708 ms — h2https://www.22.cn/www.22.cn/ https://www.22.cn/ — 200 — 246.9 KiB — 3.0 s — http/1.1https://www.22.cn/Content/bootstrap/dist/css/bootstrap.min.csswww.22.cn/Content/bootstrap/dist/cs... https://www.22.cn/Content/bootstrap/dist/css/bootstrap.min.css — 200 — 118.8 KiB — 2.4 s — http/1.1https://www.22.cn/content/js/jquery-1.10.2.jswww.22.cn/content/js/jquery-1.10.2.... https://www.22.cn/content/js/jquery-1.10.2.js — 200 — 91.2 KiB — 2.6 s — http/1.1https://www.22.cn/content/js/common.js?t=20220315www.22.cn/content/js/common.js?t=20... https://www.22.cn/content/js/common.js?t=20220315 — 200 — 3.8 KiB — 801 ms — http/1.1https://www.22.cn/Content/bootstrap/dist/js/bootstrap.min.jswww.22.cn/Content/bootstrap/dist/js... https://www.22.cn/Content/bootstrap/dist/js/bootstrap.min.js — 200 — 36.4 KiB — 2.1 s — 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ms — http/1.1https://www.22.cn/images/kh_dsq.jpgwww.22.cn/images/kh_dsq.jpg https://www.22.cn/images/kh_dsq.jpg — 200 — 8.7 KiB — 308 ms — http/1.1https://www.22.cn/images/kh_dzh.jpgwww.22.cn/images/kh_dzh.jpg https://www.22.cn/images/kh_dzh.jpg — 200 — 9.8 KiB — 219 ms — http/1.1https://www.22.cn/content/images/customer5.pngwww.22.cn/content/images/customer5.... https://www.22.cn/content/images/customer5.png — 200 — 6.2 KiB — 432 ms — http/1.1https://www.22.cn/images/icon_promise_1.pngwww.22.cn/images/icon_promise_1.png https://www.22.cn/images/icon_promise_1.png — 200 — 6.9 KiB — 534 ms — http/1.1https://www.22.cn/images/icon_promise_1_hover.pngwww.22.cn/images/icon_promise_1_hov... https://www.22.cn/images/icon_promise_1_hover.png — 200 — 8.0 KiB — 246 ms — http/1.1https://www.22.cn/images/icon_promise_2.pngwww.22.cn/images/icon_promise_2.png https://www.22.cn/images/icon_promise_2.png — 200 — 3.7 KiB — 226 ms — http/1.1https://www.22.cn/images/icon_promise_2_hover.pngwww.22.cn/images/icon_promise_2_hov... https://www.22.cn/images/icon_promise_2_hover.png — 200 — 3.8 KiB — 270 ms — http/1.1https://www.22.cn/images/icon_promise_3.pngwww.22.cn/images/icon_promise_3.png https://www.22.cn/images/icon_promise_3.png — 200 — 5.6 KiB — 311 ms — http/1.1https://www.22.cn/images/icon_promise_3_hover.pngwww.22.cn/images/icon_promise_3_hov... https://www.22.cn/images/icon_promise_3_hover.png — 200 — 5.5 KiB — 217 ms — http/1.1https://www.22.cn/content/images/weixin_nav.jpgwww.22.cn/content/images/weixin_nav... https://www.22.cn/content/images/weixin_nav.jpg — 200 — 7.7 KiB — 220 ms — http/1.1https://www.22.cn/content/images/weixin_xcx.jpgwww.22.cn/content/images/weixin_xcx... https://www.22.cn/content/images/weixin_xcx.jpg — 200 — 8.9 KiB — 430 ms — http/1.1https://www.22.cn/images/wx.pngwww.22.cn/images/wx.png https://www.22.cn/images/wx.png — 200 — 1.2 KiB — 264 ms — http/1.1https://www.22.cn/images/wx2.pngwww.22.cn/images/wx2.png https://www.22.cn/images/wx2.png — 200 — 1.1 KiB — 271 ms — http/1.1https://www.22.cn/images/miyouqun.jpgwww.22.cn/images/miyouqun.jpg https://www.22.cn/images/miyouqun.jpg — 200 — 39.7 KiB — 912 ms — http/1.1https://www.22.cn/images/qiyejia.jpgwww.22.cn/images/qiyejia.jpg https://www.22.cn/images/qiyejia.jpg — 200 — 58.9 KiB — 1.5 s — http/1.1https://www.22.cn/content/images/ghs.pngwww.22.cn/content/images/ghs.png https://www.22.cn/content/images/ghs.png — 200 — 19.1 KiB — 219 ms — http/1.1https://www.22.cn/content/images/22zsl.pngwww.22.cn/content/images/22zsl.png https://www.22.cn/content/images/22zsl.png — 200 — 36.4 KiB — 783 ms — http/1.1https://www.22.cn/content/images/home_icon/tip_icon.pngwww.22.cn/content/images/home_icon/... https://www.22.cn/content/images/home_icon/tip_icon.png — 200 — 2.1 KiB — 270 ms — http/1.1https://www.22.cn/content/images/home_icon/bm_reg.pngwww.22.cn/content/images/home_icon/... 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219 ms — http/1.1https://www.22.cn/content/images/home_icon/ruanjian_zz.pngwww.22.cn/content/images/home_icon/... https://www.22.cn/content/images/home_icon/ruanjian_zz.png — 200 — 1.6 KiB — 219 ms — http/1.1https://www.22.cn/content/images/home_icon/meishu_zz.pngwww.22.cn/content/images/home_icon/... https://www.22.cn/content/images/home_icon/meishu_zz.png — 200 — 1.9 KiB — 271 ms — http/1.1https://www.22.cn/content/images/home_icon/font_zz.pngwww.22.cn/content/images/home_icon/... https://www.22.cn/content/images/home_icon/font_zz.png — 200 — 1.5 KiB — 308 ms — http/1.1https://www.22.cn/content/images/home_icon/ssl_sectigo.pngwww.22.cn/content/images/home_icon/... https://www.22.cn/content/images/home_icon/ssl_sectigo.png — 200 — 5.2 KiB — 218 ms — http/1.1https://www.22.cn/content/images/home_icon/qyx_title_tp.pngwww.22.cn/content/images/home_icon/... https://www.22.cn/content/images/home_icon/qyx_title_tp.png — 200 — 3.4 KiB — 224 ms — http/1.1https://www.22.cn/content/images/footerimg.jpgwww.22.cn/content/images/footerimg.... https://www.22.cn/content/images/footerimg.jpg — 200 — 22.6 KiB — 1.0 s — http/1.1https://www.22.cn/favicon.icowww.22.cn/favicon.ico https://www.22.cn/favicon.ico — 200 — 1.4 KiB — 265 ms — http/1.1
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 752ms · 338KB · ¥37/mo
www.22.cn
Other
Costly
Execution 373ms
Transfer 247 KB
Monthly Cost ¥18/mo
Unattributable
Other
Optional
Execution 194ms
Transfer 0 KB
Monthly Cost ¥10/mo
www.22.cn
Other
Optional
Execution 185ms
Transfer 91 KB
Unused 30%
Monthly Cost ¥9/mo

These scripts may cost more than they're worth

  • www.22.cn adds 373ms and costs ~¥18/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

www.22.cn takes 373ms 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

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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