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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
80
GRADE
B
FIX
4
REVIEW
3
PASS
8
INFO
2

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

41
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.
81
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
82
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.

4.63 s

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

7.49 s

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

82 ms

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

0.431

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

6.58 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.

8.14 s

Page Load Progression

376 ms
752 ms
1.1 s
1.5 s
1.9 s
2.3 s
2.6 s
3.0 s
Checks
17
8 PASS 3 REVIEW 4 FIX
F
Page Weight Budget
Action
2.7 MB transferred, 35 requests
FIX
2.7 MB transferred, 35 requests
Warning::
Page weighs 3.2 MB (2.7 MB transferred)
Warning::
Images are 2.5 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.5 MB
Info::
35 HTTP requests
Info::
Estimated 0.57 g CO2 per page load
2.7 MB / 2.4 MB budget
2.7 MB transferred
35 requests
0.57 g CO2 per page load
Images 2.5 MiB 90%
JavaScript 205.8 KiB 7%
CSS 56.8 KiB 2%
HTML 3.3 KiB 0%
Other 2.4 KiB 0%
Other 1.5 KiB 0%
Other 1.0 KiB 0%
Other 802 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

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 (2.7 MiB of 2.7 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
35 resources · 2.7 MB · 25 KB savings available
FIX
35 resources · 2.7 MB · 25 KB savings available
Warning::
Page weight 1.7 MB over 1MB target
Got: 2.7 MB Expected: ≤ 1 MB
Warning::
34 third-party resources (100% of weight)
Info::
4 resources over 200KB
35 resources · 2.7 MiB · 34 third-party 1.7 MiB over 1MB target
Image 90% · 2.5 MiB
JavaScript 7% · 205.8 KiB
CSS 2% · 56.8 KiB
Document 0% · 4.0 KiB
Other 0% · 3.7 KiB

~24.7 KiB of savings available

Remove unused JavaScript: 24.7 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.

C
Image Optimization
Action
8 images, 0 KB saveable
REVIEW
8 images, 0 KB saveable
Warning::
https://www.189.cn/images/2024/9/25/00000000A12050... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.189.cn/images/2024/9/25/000000002164D9... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.189.cn/images/2024/9/25/00000000B8FDE0... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.189.cn/images/2024/9/25/00000000C1E98F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.189.cn/images/2022/11/25/00000000CA9D4... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.189.cn/images/2024/9/25/00000000E1EDC7... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
8 images 2.5 MB
0 oversized -0 KB
7 legacy format
6 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

C
JS Execution Cost
Action
1100ms total JS execution
REVIEW
1100ms total JS execution
Warning::
Unattributable: 466ms CPU time
Warning::
https://www.189.cn/wapportalweb/vue/pages/static/j...: 282ms CPU time
Info::
https://bigdata-behaviordata.189.cn:9002/chinatele...: 167ms CPU time
Info::
https://www.189.cn/wapportalweb/vue/pages/download...: 98ms CPU time
Info::
https://www.189.cn/client/wapportalweb/vue_common/...: 87ms CPU time
Warning::
Third-party scripts: 1100ms (100% of total)

Main Thread Breakdown

Other 45% Script Evaluation 41% Style & Layout 5% Script Parsing & Compilation 5%
ScriptTotalScriptingParse/CompileParty
Unattributable466ms8ms0ms3rd
https://www.189.cn/wapportalweb/vue/pages/static/js/download.e9de6ed1.js282ms224ms7ms3rd
https://bigdata-behaviordata.189.cn:9002/chinatelecom/autotrack.js167ms161ms3ms3rd
https://www.189.cn/wapportalweb/vue/pages/download/index.html98ms6ms1ms3rd
https://www.189.cn/client/wapportalweb/vue_common/js/vue/2.6.11/vue.min.js87ms27ms12ms3rd
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
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+
JS Bundles
11 scripts, 25 KB unused
PASS
11 scripts, 25 KB unused
Warning::
https://www.189.cn/wapportalweb/vue/pages/static/j...: 25 KB unused (58%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 25 KB
25 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.189.cn/wapportalweb/vue/pages/static/js/7088.d6f1ba4a.js43 KB25 KB (58%)✓3rd
https://www.189.cn/wap/ct-web-reporter.min.js8 KB—✓3rd
https://www.189.cn/client/wapportalweb/vue_common/js/rems.js1 KB—✓3rd
https://www.189.cn/client/wapportalweb/vue_common/js/vue/2.6.11/vue.min.js39 KB—✓3rd
https://www.189.cn/client/wapportalweb/vue_common/js/conscript.js4 KB—✓3rd
https://www.189.cn/client/wapportalweb/vue_common/js/axios/0.20.0/axios.min.js6 KB—✓3rd
https://www.189.cn/client/wapportalweb/vue_common/js/vue-router/3.2.0/vue-router.min.js11 KB—✓3rd
https://www.189.cn/client/wap/common/js/aes.js6 KB—✓3rd
https://bigdata-behaviordata.189.cn:9002/chinatelecom/autotrack.js11 KB—✓3rd
https://www.189.cn/wapportalweb/vue/pages/static/js/download.e9de6ed1.js38 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

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
35 requests over 5497ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s FCP 4.6 s LCP 7.5 shttps://189.cn// https://189.cn/ — 302 — 211 B — 601 ms — h2https://www.189.cn/www.189.cn/ https://www.189.cn/ — 302 — 320 B — 803 ms — h2https://a.189.cn/xiazai?channelid=129a.189.cn/xiazai?channelid=129 https://a.189.cn/xiazai?channelid=129 — 302 — 423 B — 494 ms — h2https://www.189.cn/client/wap/wapproject/newwap/download/index.htmlwww.189.cn/client/wap/wapproject/ne... https://www.189.cn/client/wap/wapproject/newwap/download/index.html — 200 — 1.2 KiB — 312 ms — h2https://www.189.cn/wapportalweb/vue/pages/download/index.htmlwww.189.cn/wapportalweb/vue/pages/d... https://www.189.cn/wapportalweb/vue/pages/download/index.html — 200 — 2.1 KiB — 256 ms — h2https://www.189.cn/wap/ct-web-reporter.min.jswww.189.cn/wap/ct-web-reporter.min.... https://www.189.cn/wap/ct-web-reporter.min.js — 200 — 8.0 KiB — 180 ms — h2https://www.189.cn/wapportalweb/vue/pages/static/js/7088.d6f1ba4a.jswww.189.cn/wapportalweb/vue/pages/s... https://www.189.cn/wapportalweb/vue/pages/static/js/7088.d6f1ba4a.js — 200 — 43.2 KiB — 427 ms — h2https://www.189.cn/wapportalweb/vue/pages/static/css/chunk-vendors.12780cbf.csswww.189.cn/wapportalweb/vue/pages/s... https://www.189.cn/wapportalweb/vue/pages/static/css/chunk-vendors.12780cbf.css — 200 — 53.1 KiB — 229 ms — h2https://www.189.cn/wapportalweb/vue/pages/static/css/download.539ec8b5.csswww.189.cn/wapportalweb/vue/pages/s... https://www.189.cn/wapportalweb/vue/pages/static/css/download.539ec8b5.css — 200 — 3.6 KiB — 235 ms — h2https://www.189.cn/client/wapportalweb/vue_common/js/rems.jswww.189.cn/client/wapportalweb/vue_... https://www.189.cn/client/wapportalweb/vue_common/js/rems.js — 200 — 1.0 KiB — 237 ms — h2https://www.189.cn/client/wapportalweb/vue_common/js/vue/2.6.11/vue.min.jswww.189.cn/client/wapportalweb/vue_... https://www.189.cn/client/wapportalweb/vue_common/js/vue/2.6.11/vue.min.js — 200 — 38.7 KiB — 379 ms — h2https://www.189.cn/client/wapportalweb/vue_common/js/conscript.jswww.189.cn/client/wapportalweb/vue_... https://www.189.cn/client/wapportalweb/vue_common/js/conscript.js — 200 — 3.7 KiB — 383 ms — h2https://www.189.cn/client/wapportalweb/vue_common/js/axios/0.20.0/axios.min.jswww.189.cn/client/wapportalweb/vue_... https://www.189.cn/client/wapportalweb/vue_common/js/axios/0.20.0/axios.min.js — 200 — 5.8 KiB — 388 ms — h2https://www.189.cn/client/wapportalweb/vue_common/js/vue-router/3.2.0/vue-router.min.jswww.189.cn/client/wapportalweb/vue_... https://www.189.cn/client/wapportalweb/vue_common/js/vue-router/3.2.0/vue-router.min.js — 200 — 10.8 KiB — 436 ms — h2https://www.189.cn/client/wap/common/js/aes.jswww.189.cn/client/wap/common/js/aes... https://www.189.cn/client/wap/common/js/aes.js — 200 — 5.5 KiB — 441 ms — h2https://bigdata-behaviordata.189.cn:9002/chinatelecom/chinatelecom.min.jsbigdata-behaviordata.189.cn:9002/ch... https://bigdata-behaviordata.189.cn:9002/chinatelecom/chinatelecom.min.js — 302 — 195 B — 544 ms — h2https://bigdata-behaviordata.189.cn:9002/chinatelecom/autotrack.jsbigdata-behaviordata.189.cn:9002/ch... https://bigdata-behaviordata.189.cn:9002/chinatelecom/autotrack.js — 200 — 11.5 KiB — 715 ms — h2https://www.189.cn/wapportalweb/vue/pages/static/js/download.e9de6ed1.jswww.189.cn/wapportalweb/vue/pages/s... https://www.189.cn/wapportalweb/vue/pages/static/js/download.e9de6ed1.js — 200 — 38.2 KiB — 290 ms — h2https://res-behaviordata.189.cn/chinatelecom/chinatelecom.min.jsres-behaviordata.189.cn/chinateleco... https://res-behaviordata.189.cn/chinatelecom/chinatelecom.min.js — 200 — 39.4 KiB — 855 ms — http/1.1https://bigdata-behaviordata.189.cn:9002/databigdata-behaviordata.189.cn:9002/da... https://bigdata-behaviordata.189.cn:9002/data — 200 — 207 B — 178 ms — h2https://bigdata-behaviordata.189.cn:9002/databigdata-behaviordata.189.cn:9002/da... https://bigdata-behaviordata.189.cn:9002/data — 200 — 206 B — 178 ms — h2https://bigdata-behaviordata.189.cn:9002/databigdata-behaviordata.189.cn:9002/da... https://bigdata-behaviordata.189.cn:9002/data — 200 — 207 B — 180 ms — h2data:image/gif;base64,R0lGODlhIAAgALMAAP///7Ozs/v7+9bW1uHh4fLy8rq6uoGBgTQ0NAEBARsbG8TExJeXl/39/VRUV…data:image/gif;base64,R0lGODlhIAAgA... data:image/gif;base64,R0lGODlhIAAgALMAAP///7Ozs/v7+9bW1uHh4fLy8rq6uoGBgTQ0NAEBARsbG8TExJeXl/39/VRUV… — 200 — 0 B — 0 ms — datahttps://www.189.cn/wapportalweb/wap/downloadAllocation.dowww.189.cn/wapportalweb/wap/downloa... https://www.189.cn/wapportalweb/wap/downloadAllocation.do — 200 — 1.5 KiB — 339 ms — h2https://www.189.cn/favicon.icowww.189.cn/favicon.ico https://www.189.cn/favicon.ico — 200 — 1.3 KiB — 180 ms — h2https://bigdata-behaviordata.189.cn:9002/databigdata-behaviordata.189.cn:9002/da... https://bigdata-behaviordata.189.cn:9002/data — 200 — 206 B — 185 ms — h2https://www.189.cn/images/2024/9/25/000000002315B65EE71F4337ABB4CAACF7390075.jpgwww.189.cn/images/2024/9/25/0000000... https://www.189.cn/images/2024/9/25/000000002315B65EE71F4337ABB4CAACF7390075.jpg — 200 — 50.2 KiB — 213 ms — h2https://www.189.cn/images/2022/11/25/00000000CA9D45537C994D8CA9616D0339C06BC4.pngwww.189.cn/images/2022/11/25/000000... https://www.189.cn/images/2022/11/25/00000000CA9D45537C994D8CA9616D0339C06BC4.png — 200 — 16.3 KiB — 206 ms — h2https://www.189.cn/images/2024/9/25/00000000E1EDC7CD7F7245B59B1D9C8E19638BA3.pngwww.189.cn/images/2024/9/25/0000000... https://www.189.cn/images/2024/9/25/00000000E1EDC7CD7F7245B59B1D9C8E19638BA3.png — 200 — 739.5 KiB — 832 ms — h2https://www.189.cn/images/2024/9/25/00000000A12050CCBB8E4BB8872CAFD4ED9171D1.pngwww.189.cn/images/2024/9/25/0000000... https://www.189.cn/images/2024/9/25/00000000A12050CCBB8E4BB8872CAFD4ED9171D1.png — 200 — 494.2 KiB — 663 ms — h2
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s FCP 4.6 s LCP 7.5 shttps://189.cn// https://189.cn/ — 302 — 211 B — 601 ms — h2https://www.189.cn/www.189.cn/ https://www.189.cn/ — 302 — 320 B — 803 ms — h2https://a.189.cn/xiazai?channelid=129a.189.cn/xiazai?channelid=129 https://a.189.cn/xiazai?channelid=129 — 302 — 423 B — 494 ms — h2https://www.189.cn/client/wap/wapproject/newwap/download/index.htmlwww.189.cn/client/wap/wapproject/ne... https://www.189.cn/client/wap/wapproject/newwap/download/index.html — 200 — 1.2 KiB — 312 ms — h2https://www.189.cn/wapportalweb/vue/pages/download/index.htmlwww.189.cn/wapportalweb/vue/pages/d... https://www.189.cn/wapportalweb/vue/pages/download/index.html — 200 — 2.1 KiB — 256 ms — h2https://www.189.cn/wap/ct-web-reporter.min.jswww.189.cn/wap/ct-web-reporter.min.... https://www.189.cn/wap/ct-web-reporter.min.js — 200 — 8.0 KiB — 180 ms — h2https://www.189.cn/wapportalweb/vue/pages/static/js/7088.d6f1ba4a.jswww.189.cn/wapportalweb/vue/pages/s... https://www.189.cn/wapportalweb/vue/pages/static/js/7088.d6f1ba4a.js — 200 — 43.2 KiB — 427 ms — h2https://www.189.cn/wapportalweb/vue/pages/static/css/chunk-vendors.12780cbf.csswww.189.cn/wapportalweb/vue/pages/s... https://www.189.cn/wapportalweb/vue/pages/static/css/chunk-vendors.12780cbf.css — 200 — 53.1 KiB — 229 ms — h2https://www.189.cn/wapportalweb/vue/pages/static/css/download.539ec8b5.csswww.189.cn/wapportalweb/vue/pages/s... https://www.189.cn/wapportalweb/vue/pages/static/css/download.539ec8b5.css — 200 — 3.6 KiB — 235 ms — h2https://www.189.cn/client/wapportalweb/vue_common/js/rems.jswww.189.cn/client/wapportalweb/vue_... https://www.189.cn/client/wapportalweb/vue_common/js/rems.js — 200 — 1.0 KiB — 237 ms — h2https://www.189.cn/client/wapportalweb/vue_common/js/vue/2.6.11/vue.min.jswww.189.cn/client/wapportalweb/vue_... https://www.189.cn/client/wapportalweb/vue_common/js/vue/2.6.11/vue.min.js — 200 — 38.7 KiB — 379 ms — h2https://www.189.cn/client/wapportalweb/vue_common/js/conscript.jswww.189.cn/client/wapportalweb/vue_... https://www.189.cn/client/wapportalweb/vue_common/js/conscript.js — 200 — 3.7 KiB — 383 ms — h2https://www.189.cn/client/wapportalweb/vue_common/js/axios/0.20.0/axios.min.jswww.189.cn/client/wapportalweb/vue_... https://www.189.cn/client/wapportalweb/vue_common/js/axios/0.20.0/axios.min.js — 200 — 5.8 KiB — 388 ms — h2https://www.189.cn/client/wapportalweb/vue_common/js/vue-router/3.2.0/vue-router.min.jswww.189.cn/client/wapportalweb/vue_... https://www.189.cn/client/wapportalweb/vue_common/js/vue-router/3.2.0/vue-router.min.js — 200 — 10.8 KiB — 436 ms — h2https://www.189.cn/client/wap/common/js/aes.jswww.189.cn/client/wap/common/js/aes... https://www.189.cn/client/wap/common/js/aes.js — 200 — 5.5 KiB — 441 ms — h2https://bigdata-behaviordata.189.cn:9002/chinatelecom/chinatelecom.min.jsbigdata-behaviordata.189.cn:9002/ch... https://bigdata-behaviordata.189.cn:9002/chinatelecom/chinatelecom.min.js — 302 — 195 B — 544 ms — h2https://bigdata-behaviordata.189.cn:9002/chinatelecom/autotrack.jsbigdata-behaviordata.189.cn:9002/ch... https://bigdata-behaviordata.189.cn:9002/chinatelecom/autotrack.js — 200 — 11.5 KiB — 715 ms — h2https://www.189.cn/wapportalweb/vue/pages/static/js/download.e9de6ed1.jswww.189.cn/wapportalweb/vue/pages/s... https://www.189.cn/wapportalweb/vue/pages/static/js/download.e9de6ed1.js — 200 — 38.2 KiB — 290 ms — h2https://res-behaviordata.189.cn/chinatelecom/chinatelecom.min.jsres-behaviordata.189.cn/chinateleco... https://res-behaviordata.189.cn/chinatelecom/chinatelecom.min.js — 200 — 39.4 KiB — 855 ms — http/1.1https://bigdata-behaviordata.189.cn:9002/databigdata-behaviordata.189.cn:9002/da... https://bigdata-behaviordata.189.cn:9002/data — 200 — 207 B — 178 ms — h2https://bigdata-behaviordata.189.cn:9002/databigdata-behaviordata.189.cn:9002/da... https://bigdata-behaviordata.189.cn:9002/data — 200 — 206 B — 178 ms — h2https://bigdata-behaviordata.189.cn:9002/databigdata-behaviordata.189.cn:9002/da... https://bigdata-behaviordata.189.cn:9002/data — 200 — 207 B — 180 ms — h2data:image/gif;base64,R0lGODlhIAAgALMAAP///7Ozs/v7+9bW1uHh4fLy8rq6uoGBgTQ0NAEBARsbG8TExJeXl/39/VRUV…data:image/gif;base64,R0lGODlhIAAgA... data:image/gif;base64,R0lGODlhIAAgALMAAP///7Ozs/v7+9bW1uHh4fLy8rq6uoGBgTQ0NAEBARsbG8TExJeXl/39/VRUV… — 200 — 0 B — 0 ms — datahttps://www.189.cn/wapportalweb/wap/downloadAllocation.dowww.189.cn/wapportalweb/wap/downloa... https://www.189.cn/wapportalweb/wap/downloadAllocation.do — 200 — 1.5 KiB — 339 ms — h2https://www.189.cn/favicon.icowww.189.cn/favicon.ico https://www.189.cn/favicon.ico — 200 — 1.3 KiB — 180 ms — h2https://bigdata-behaviordata.189.cn:9002/databigdata-behaviordata.189.cn:9002/da... https://bigdata-behaviordata.189.cn:9002/data — 200 — 206 B — 185 ms — h2https://www.189.cn/images/2024/9/25/000000002315B65EE71F4337ABB4CAACF7390075.jpgwww.189.cn/images/2024/9/25/0000000... https://www.189.cn/images/2024/9/25/000000002315B65EE71F4337ABB4CAACF7390075.jpg — 200 — 50.2 KiB — 213 ms — h2https://www.189.cn/images/2022/11/25/00000000CA9D45537C994D8CA9616D0339C06BC4.pngwww.189.cn/images/2022/11/25/000000... https://www.189.cn/images/2022/11/25/00000000CA9D45537C994D8CA9616D0339C06BC4.png — 200 — 16.3 KiB — 206 ms — h2https://www.189.cn/images/2024/9/25/00000000E1EDC7CD7F7245B59B1D9C8E19638BA3.pngwww.189.cn/images/2024/9/25/0000000... https://www.189.cn/images/2024/9/25/00000000E1EDC7CD7F7245B59B1D9C8E19638BA3.png — 200 — 739.5 KiB — 832 ms — h2https://www.189.cn/images/2024/9/25/00000000A12050CCBB8E4BB8872CAFD4ED9171D1.pngwww.189.cn/images/2024/9/25/0000000... https://www.189.cn/images/2024/9/25/00000000A12050CCBB8E4BB8872CAFD4ED9171D1.png — 200 — 494.2 KiB — 663 ms — h2https://www.189.cn/images/2024/9/25/000000002164D997C28D4925B5372797E3E6798A.pngwww.189.cn/images/2024/9/25/0000000... https://www.189.cn/images/2024/9/25/000000002164D997C28D4925B5372797E3E6798A.png — 200 — 819.6 KiB — 777 ms — h2https://www.189.cn/images/2024/9/25/00000000B8FDE08814194F6F839F6AFB6708CF7A.pngwww.189.cn/images/2024/9/25/0000000... https://www.189.cn/images/2024/9/25/00000000B8FDE08814194F6F839F6AFB6708CF7A.png — 200 — 404.3 KiB — 801 ms — h2https://www.189.cn/images/2024/9/25/00000000C1E98F740B4E45AEADBFB1C5A619578C.pngwww.189.cn/images/2024/9/25/0000000... https://www.189.cn/images/2024/9/25/00000000C1E98F740B4E45AEADBFB1C5A619578C.png — 200 — 9.1 KiB — 617 ms — h2https://bigdata-behaviordata.189.cn:9002/databigdata-behaviordata.189.cn:9002/da... https://bigdata-behaviordata.189.cn:9002/data — 200 — 207 B — 180 ms — h2https://www.189.cn/cteye/report/webwww.189.cn/cteye/report/web https://www.189.cn/cteye/report/web — 200 — 802 B — 248 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 1100ms · 91KB · ¥54/mo
Unattributable
Other
Costly
Execution 466ms
Transfer 0 KB
Monthly Cost ¥23/mo
www.189.cn
Other
Costly
Execution 282ms
Transfer 38 KB
Monthly Cost ¥14/mo
bigdata-behaviordata.189.cn
Other
Optional
Execution 167ms
Transfer 11 KB
Monthly Cost ¥8/mo
www.189.cn
Other
Optional
Execution 98ms
Transfer 2 KB
Monthly Cost ¥5/mo
www.189.cn
Other
Optional
Execution 87ms
Transfer 39 KB
Monthly Cost ¥4/mo

These scripts may cost more than they're worth

  • Unattributable adds 466ms and costs ~¥23/month
  • www.189.cn adds 282ms and costs ~¥14/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

Unattributable takes 466ms 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

www.189.cn takes 282ms 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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