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https://bjx.com.cn

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
73
GRADE
C
FIX
5
REVIEW
3
PASS
5
INFO
2

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

Mobile Desktop
53
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
80
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.
100
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.

5.85 s

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

6.31 s

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

308 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.

9.11 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.

13.92 s

Page Load Progression

817 ms
1.6 s
2.5 s
3.3 s
4.1 s
4.9 s
5.7 s
6.5 s
Checks
15
5 PASS 3 REVIEW 5 FIX
D
Page Weight Budget
Action
2.3 MB transferred, 42 requests
FIX
2.3 MB transferred, 42 requests
Info::
Page weighs 3.6 MB (2.3 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
Warning::
JavaScript is 566 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 566 KB
Info::
42 HTTP requests
Info::
Estimated 0.48 g CO2 per page load
2.3 MB / 2.4 MB budget
2.3 MB transferred
42 requests
0.48 g CO2 per page load
Images 1.7 MiB 75%
JavaScript 566.2 KiB 24%
CSS 19.3 KiB 1%
Fonts 6.3 KiB 0%
HTML 5.3 KiB 0%
Other 2.1 KiB 0%
Other 315 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Approaching limit

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

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

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 (2.3 MiB of 2.3 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Bundles
Action
15 scripts, 366 KB unused
FIX
15 scripts, 366 KB unused
Warning::
https://userstatic.bjx.com.cn/login/a251010/bjx_lo...: 336 KB unused (80%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://newsstatic.bjx.com.cn/public/a220127/bjx_m...: 30 KB unused (59%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 366 KB
366 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://userstatic.bjx.com.cn/login/a251010/bjx_login_center/assets/sdk/1.0.3/bjxLogin.js?v=1776891000000422 KB336 KB (80%)✓3rd
https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/sensorsdata.min.js?_=177689156042452 KB30 KB (59%)✓3rd
https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/nunjucks-slim.min.js?_=2026042218052011 KB—✓3rd
https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/swiper.jquery.min.js?_=2026042218052021 KB—✓3rd
https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/comm.js?_=202604221805203 KB—✓3rd
https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/login.js?_=202604221805206 KB—✓3rd
https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/openScreenAd.js?_=202604221805201 KB—✓3rd
https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/tpl/list.js?_=202604221805201 KB—✓3rd
https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/nunjucks_env.js?_=202604221805202 KB—✓3rd
https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/nav.js?_=202604221805201 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

D
Page Weight Inventory
Action
42 resources · 2.3 MB · 366 KB savings available
FIX
42 resources · 2.3 MB · 366 KB savings available
Warning::
Page weight 1.3 MB over 1MB target
Got: 2.3 MB Expected: ≤ 1 MB
Info::
~366 KB of savings available
Warning::
41 third-party resources (100% of weight)
Info::
4 resources over 200KB
42 resources · 2.3 MiB · 41 third-party 1.3 MiB over 1MB target
Image 75% · 1.7 MiB
JavaScript 24% · 566.2 KiB
CSS 1% · 19.3 KiB
Font 0% · 6.3 KiB
Document 0% · 5.6 KiB
Other 0% · 2.1 KiB

~366.0 KiB of savings available

Remove unused JavaScript: 366.0 KiB
F
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.

No Cache-Control header

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

B
Image Optimization
16 images, 0 KB saveable
REVIEW
16 images, 0 KB saveable
Warning::
https://newsstatic.bjx.com.cn/public/a220127/bjx_m... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
16 images 1.7 MB
0 oversized -0 KB
16 legacy format
1 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

C
JS Execution Cost
Action
1757ms total JS execution
REVIEW
1757ms total JS execution
Warning::
https://wap.bjx.com.cn/: 539ms CPU time
Warning::
https://userstatic.bjx.com.cn/login/a251010/bjx_lo...: 513ms CPU time
Warning::
Unattributable: 476ms CPU time
Info::
https://newsstatic.bjx.com.cn/public/a220127/bjx_m...: 168ms CPU time
Info::
https://newsstatic.bjx.com.cn/public/a220127/bjx_m...: 61ms CPU time
Warning::
Third-party scripts: 1757ms (100% of total)

Main Thread Breakdown

Script Evaluation 30% Other 28% Style & Layout 19% Script Parsing & Compilation 13% Rendering 6% Garbage Collection 3%
ScriptTotalScriptingParse/CompileParty
https://wap.bjx.com.cn/539ms8ms2ms3rd
https://userstatic.bjx.com.cn/login/a251010/bjx_login_center/assets/sdk/1.0.3/bjxLogin.js?v=1776891000000513ms324ms178ms3rd
Unattributable476ms2ms0ms3rd
https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/jquery.min.js?_=20260422180520168ms139ms12ms3rd
https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/sensorsdata.min.js?_=177689156042461ms27ms23ms3rd
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

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 FCP 5.8 s LCP 6.3 shttps://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/css/font/iconfont.woff2?t=1634028513777iconfont.woff2 https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/css/font/iconfont.woff2?t=1634028513777 — 6.3 KiB — 997 ms — font-display: swap
iconfont.woff2 woff2 swap
Size 6 KB
Load time 997 ms
Start 4.7 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
Network Waterfall
42 requests over 11292ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 5.8 s LCP 6.3 shttps://bjx.com.cn// https://bjx.com.cn/ — 301 — 90 B — 1.3 s — h2https://www.bjx.com.cn/www.bjx.com.cn/ https://www.bjx.com.cn/ — 302 — 225 B — 599 ms — h2https://wap.bjx.com.cn/wap.bjx.com.cn/ https://wap.bjx.com.cn/ — 200 — 5.3 KiB — 702 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/css/default.css?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/css/default.css?_=20260422180520 — 200 — 6.1 KiB — 2.0 s — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/img/mlogo.png?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/img/mlogo.png?_=20260422180520 — 200 — 6.5 KiB — 1.7 s — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/img/defaulthead.png?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/img/defaulthead.png?_=20260422180520 — 200 — 3.1 KiB — 1.7 s — h2https://img01.mybjx.net/news/UploadFile/202604/955fb146f92249de93427f61db88802e.pngimg01.mybjx.net/news/UploadFile/202... https://img01.mybjx.net/news/UploadFile/202604/955fb146f92249de93427f61db88802e.png — 200 — 277.1 KiB — 3.9 s — h2https://img01.mybjx.net/news/WechatImage/202604/17768500312130756.pngimg01.mybjx.net/news/WechatImage/20... https://img01.mybjx.net/news/WechatImage/202604/17768500312130756.png — 200 — 177.0 KiB — 4.7 s — h2https://img01.mybjx.net/news/WechatImage/202604/17768494276978976.jpegimg01.mybjx.net/news/WechatImage/20... https://img01.mybjx.net/news/WechatImage/202604/17768494276978976.jpeg — 200 — 92.5 KiB — 3.2 s — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/openScreenAd.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/openScreenAd.js?_=20260422180520 — 200 — 911 B — 1.9 s — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/jquery.min.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/jquery.min.js?_=20260422180520 — 200 — 32.3 KiB — 1.9 s — h2https://res.wx.qq.com/open/js/jweixin-1.6.0.jsres.wx.qq.com/open/js/jweixin-1.6.0... https://res.wx.qq.com/open/js/jweixin-1.6.0.js — 200 — 13.2 KiB — 397 ms — http/1.1https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/swiper.jquery.min.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/swiper.jquery.min.js?_=20260422180520 — 200 — 21.3 KiB — 1.6 s — h2https://img01.mybjx.net/news/WechatImage/202604/17768486176665128.pngimg01.mybjx.net/news/WechatImage/20... https://img01.mybjx.net/news/WechatImage/202604/17768486176665128.png — 200 — 274.0 KiB — 4.9 s — h2https://img01.mybjx.net/news/UploadFile/202604/77a899f4a7d94b0889d1e70b5d1d374e.pngimg01.mybjx.net/news/UploadFile/202... https://img01.mybjx.net/news/UploadFile/202604/77a899f4a7d94b0889d1e70b5d1d374e.png — 200 — 27.6 KiB — 3.8 s — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/comm.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/comm.js?_=20260422180520 — 200 — 2.6 KiB — 355 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/login.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/login.js?_=20260422180520 — 200 — 5.7 KiB — 374 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/nunjucks-slim.min.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/nunjucks-slim.min.js?_=20260422180520 — 200 — 11.1 KiB — 351 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/tpl/list.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/tpl/list.js?_=20260422180520 — 200 — 1.3 KiB — 376 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/nunjucks_env.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/nunjucks_env.js?_=20260422180520 — 200 — 2.0 KiB — 368 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/nav.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/nav.js?_=20260422180520 — 200 — 919 B — 352 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/home.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/home.js?_=20260422180520 — 200 — 1.1 KiB — 355 ms — h2https://img01.mybjx.net/news/UploadFile/202604/b3f7c17dd54f4d44878b5926b570f1ff.jpgimg01.mybjx.net/news/UploadFile/202... https://img01.mybjx.net/news/UploadFile/202604/b3f7c17dd54f4d44878b5926b570f1ff.jpg — 200 — 565.3 KiB — 3.4 s — h2https://w.cnzz.com/c.php?id=30085320w.cnzz.com/c.php?id=30085320 https://w.cnzz.com/c.php?id=30085320 — 200 — 369 B — 2.0 s — h2https://img.mybjx.net/theme/default/images/common/loading.gifimg.mybjx.net/theme/default/images/... https://img.mybjx.net/theme/default/images/common/loading.gif — 200 — 12.3 KiB — 2.3 s — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/css/font/iconfont.woff2?t=1634028513777newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/css/font/iconfont.woff2?t=1634028513777 — 200 — 6.3 KiB — 997 ms — h2https://img01.mybjx.net/news/WechatImage/202604/17768480518222569.pngimg01.mybjx.net/news/WechatImage/20... https://img01.mybjx.net/news/WechatImage/202604/17768480518222569.png — 200 — 50.9 KiB — 1.3 s — h2https://img01.mybjx.net/news/UploadFile/202604/14b7ef8810a04f66bd93747fa5237c8b.pngimg01.mybjx.net/news/UploadFile/202... https://img01.mybjx.net/news/UploadFile/202604/14b7ef8810a04f66bd93747fa5237c8b.png — 200 — 127.0 KiB — 1.7 s — h2https://img01.mybjx.net/news/WechatImage/202604/17768463406349909.pngimg01.mybjx.net/news/WechatImage/20... https://img01.mybjx.net/news/WechatImage/202604/17768463406349909.png — 200 — 30.3 KiB — 1.2 s — h2https://img01.mybjx.net/news/UploadFile/202604/c758cbc523424bce91822ed1eb2fefa7.pngimg01.mybjx.net/news/UploadFile/202... https://img01.mybjx.net/news/UploadFile/202604/c758cbc523424bce91822ed1eb2fefa7.png — 200 — 39.5 KiB — 1.6 s — h2
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 5.8 s LCP 6.3 shttps://bjx.com.cn// https://bjx.com.cn/ — 301 — 90 B — 1.3 s — h2https://www.bjx.com.cn/www.bjx.com.cn/ https://www.bjx.com.cn/ — 302 — 225 B — 599 ms — h2https://wap.bjx.com.cn/wap.bjx.com.cn/ https://wap.bjx.com.cn/ — 200 — 5.3 KiB — 702 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/css/default.css?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/css/default.css?_=20260422180520 — 200 — 6.1 KiB — 2.0 s — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/img/mlogo.png?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/img/mlogo.png?_=20260422180520 — 200 — 6.5 KiB — 1.7 s — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/img/defaulthead.png?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/img/defaulthead.png?_=20260422180520 — 200 — 3.1 KiB — 1.7 s — h2https://img01.mybjx.net/news/UploadFile/202604/955fb146f92249de93427f61db88802e.pngimg01.mybjx.net/news/UploadFile/202... https://img01.mybjx.net/news/UploadFile/202604/955fb146f92249de93427f61db88802e.png — 200 — 277.1 KiB — 3.9 s — h2https://img01.mybjx.net/news/WechatImage/202604/17768500312130756.pngimg01.mybjx.net/news/WechatImage/20... https://img01.mybjx.net/news/WechatImage/202604/17768500312130756.png — 200 — 177.0 KiB — 4.7 s — h2https://img01.mybjx.net/news/WechatImage/202604/17768494276978976.jpegimg01.mybjx.net/news/WechatImage/20... https://img01.mybjx.net/news/WechatImage/202604/17768494276978976.jpeg — 200 — 92.5 KiB — 3.2 s — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/openScreenAd.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/openScreenAd.js?_=20260422180520 — 200 — 911 B — 1.9 s — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/jquery.min.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/jquery.min.js?_=20260422180520 — 200 — 32.3 KiB — 1.9 s — h2https://res.wx.qq.com/open/js/jweixin-1.6.0.jsres.wx.qq.com/open/js/jweixin-1.6.0... https://res.wx.qq.com/open/js/jweixin-1.6.0.js — 200 — 13.2 KiB — 397 ms — http/1.1https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/swiper.jquery.min.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/swiper.jquery.min.js?_=20260422180520 — 200 — 21.3 KiB — 1.6 s — h2https://img01.mybjx.net/news/WechatImage/202604/17768486176665128.pngimg01.mybjx.net/news/WechatImage/20... https://img01.mybjx.net/news/WechatImage/202604/17768486176665128.png — 200 — 274.0 KiB — 4.9 s — h2https://img01.mybjx.net/news/UploadFile/202604/77a899f4a7d94b0889d1e70b5d1d374e.pngimg01.mybjx.net/news/UploadFile/202... https://img01.mybjx.net/news/UploadFile/202604/77a899f4a7d94b0889d1e70b5d1d374e.png — 200 — 27.6 KiB — 3.8 s — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/comm.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/comm.js?_=20260422180520 — 200 — 2.6 KiB — 355 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/login.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/login.js?_=20260422180520 — 200 — 5.7 KiB — 374 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/nunjucks-slim.min.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/nunjucks-slim.min.js?_=20260422180520 — 200 — 11.1 KiB — 351 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/tpl/list.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/tpl/list.js?_=20260422180520 — 200 — 1.3 KiB — 376 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/nunjucks_env.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/nunjucks_env.js?_=20260422180520 — 200 — 2.0 KiB — 368 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/nav.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/nav.js?_=20260422180520 — 200 — 919 B — 352 ms — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/home.js?_=20260422180520newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/home.js?_=20260422180520 — 200 — 1.1 KiB — 355 ms — h2https://img01.mybjx.net/news/UploadFile/202604/b3f7c17dd54f4d44878b5926b570f1ff.jpgimg01.mybjx.net/news/UploadFile/202... https://img01.mybjx.net/news/UploadFile/202604/b3f7c17dd54f4d44878b5926b570f1ff.jpg — 200 — 565.3 KiB — 3.4 s — h2https://w.cnzz.com/c.php?id=30085320w.cnzz.com/c.php?id=30085320 https://w.cnzz.com/c.php?id=30085320 — 200 — 369 B — 2.0 s — h2https://img.mybjx.net/theme/default/images/common/loading.gifimg.mybjx.net/theme/default/images/... https://img.mybjx.net/theme/default/images/common/loading.gif — 200 — 12.3 KiB — 2.3 s — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/css/font/iconfont.woff2?t=1634028513777newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/css/font/iconfont.woff2?t=1634028513777 — 200 — 6.3 KiB — 997 ms — h2https://img01.mybjx.net/news/WechatImage/202604/17768480518222569.pngimg01.mybjx.net/news/WechatImage/20... https://img01.mybjx.net/news/WechatImage/202604/17768480518222569.png — 200 — 50.9 KiB — 1.3 s — h2https://img01.mybjx.net/news/UploadFile/202604/14b7ef8810a04f66bd93747fa5237c8b.pngimg01.mybjx.net/news/UploadFile/202... https://img01.mybjx.net/news/UploadFile/202604/14b7ef8810a04f66bd93747fa5237c8b.png — 200 — 127.0 KiB — 1.7 s — h2https://img01.mybjx.net/news/WechatImage/202604/17768463406349909.pngimg01.mybjx.net/news/WechatImage/20... https://img01.mybjx.net/news/WechatImage/202604/17768463406349909.png — 200 — 30.3 KiB — 1.2 s — h2https://img01.mybjx.net/news/UploadFile/202604/c758cbc523424bce91822ed1eb2fefa7.pngimg01.mybjx.net/news/UploadFile/202... https://img01.mybjx.net/news/UploadFile/202604/c758cbc523424bce91822ed1eb2fefa7.png — 200 — 39.5 KiB — 1.6 s — h2https://img01.mybjx.net/news/WechatImage/202604/17768438614750686.pngimg01.mybjx.net/news/WechatImage/20... https://img01.mybjx.net/news/WechatImage/202604/17768438614750686.png — 200 — 26.2 KiB — 1.6 s — h2https://img01.mybjx.net/news/UploadFile/202604/5fd2f684c8b54cc1aced18c47a10cca9.pngimg01.mybjx.net/news/UploadFile/202... https://img01.mybjx.net/news/UploadFile/202604/5fd2f684c8b54cc1aced18c47a10cca9.png — 200 — 10.0 KiB — 1.6 s — h2https://img01.mybjx.net/news/UploadFile/202604/6aef7668246c4acbab7b18a10b15de80.pngimg01.mybjx.net/news/UploadFile/202... https://img01.mybjx.net/news/UploadFile/202604/6aef7668246c4acbab7b18a10b15de80.png — 200 — 37.3 KiB — 1.7 s — h2https://hm.baidu.com/hm.js?797e95e42c7a8bdc8814749cbcddd277hm.baidu.com/hm.js?797e95e42c7a8bdc... https://hm.baidu.com/hm.js?797e95e42c7a8bdc8814749cbcddd277 — -1 — 0 B — 0 ms — https://newspublicapi.bjx.com.cn/apinews/base/getWxJsSign?url=https%3A%2F%2Fwap.bjx.com.cn%2Fnewspublicapi.bjx.com.cn/apinews/ba... https://newspublicapi.bjx.com.cn/apinews/base/getWxJsSign?url=https%3A%2F%2Fwap.bjx.com.cn%2F — 200 — 667 B — 1.5 s — h2https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/sensorsdata.min.js?_=1776891560424newsstatic.bjx.com.cn/public/a22012... https://newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/sensorsdata.min.js?_=1776891560424 — 200 — 51.8 KiB — 380 ms — h2https://userstatic.bjx.com.cn/login/a251010/bjx_login_center/assets/sdk/1.0.3/bjxLogin.js?v=1776891000000userstatic.bjx.com.cn/login/a251010... https://userstatic.bjx.com.cn/login/a251010/bjx_login_center/assets/sdk/1.0.3/bjxLogin.js?v=1776891000000 — 200 — 421.8 KiB — 2.3 s — h2https://bigdata-up.bjx.com.cn/bigData/mediaPostbigdata-up.bjx.com.cn/bigData/media... https://bigdata-up.bjx.com.cn/bigData/mediaPost — 200 — 366 B — 1.1 s — h2https://bigdata-up.bjx.com.cn/bigData/mediaPostbigdata-up.bjx.com.cn/bigData/media... https://bigdata-up.bjx.com.cn/bigData/mediaPost — 200 — 365 B — 1.1 s — h2https://userstatic.bjx.com.cn/login/a251010/bjx_login_center/assets/sdk/1.0.3/bjxLogin.css?v=1776891000000userstatic.bjx.com.cn/login/a251010... https://userstatic.bjx.com.cn/login/a251010/bjx_login_center/assets/sdk/1.0.3/bjxLogin.css?v=1776891000000 — 200 — 13.2 KiB — 331 ms — h2https://passportapi.bjx.com.cn/api/v1/common/config/securitypassportapi.bjx.com.cn/api/v1/commo... https://passportapi.bjx.com.cn/api/v1/common/config/security — 200 — 0 B — 1.1 s — h2https://passportapi.bjx.com.cn/api/v1/common/config/securitypassportapi.bjx.com.cn/api/v1/commo... https://passportapi.bjx.com.cn/api/v1/common/config/security — 200 — 718 B — 998 ms — h2
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 1757ms · 511KB · ¥87/mo
wap.bjx.com.cn
Other
Costly
Execution 539ms
Transfer 5 KB
Monthly Cost ¥27/mo
userstatic.bjx.com.cn
Other
Costly
Execution 513ms
Transfer 422 KB
Unused 80%
Monthly Cost ¥25/mo
Unattributable
Other
Costly
Execution 476ms
Transfer 0 KB
Monthly Cost ¥24/mo
newsstatic.bjx.com.cn
Other
Optional
Execution 168ms
Transfer 32 KB
Monthly Cost ¥8/mo
newsstatic.bjx.com.cn
Other
Optional
Execution 61ms
Transfer 52 KB
Unused 59%
Monthly Cost ¥3/mo

These scripts may cost more than they're worth

  • wap.bjx.com.cn adds 539ms and costs ~¥27/month
  • userstatic.bjx.com.cn adds 513ms and costs ~¥25/month
  • Unattributable adds 476ms and costs ~¥24/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

wap.bjx.com.cn takes 539ms 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

userstatic.bjx.com.cn takes 513ms 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

80% of userstatic.bjx.com.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

Unattributable takes 476ms 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

59% of newsstatic.bjx.com.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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