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https://so.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
91
GRADE
A
FIX
2
REVIEW
3
PASS
10
INFO
2

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

56
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
73
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
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.

6.79 s

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

8.30 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.

0.001

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

13.99 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.

8.30 s

Page Load Progression

1.2 s
2.3 s
3.5 s
4.6 s
5.8 s
6.9 s
8.1 s
9.2 s
Checks
17
10 PASS 3 REVIEW 2 FIX
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 (622.0 KiB of 622.3 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
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
22 images, 0 KB saveable
REVIEW
22 images, 0 KB saveable
Info::
All images are well-optimized
22 images 131 KB
0 oversized -0 KB
21 legacy format
0 missing dimensions CLS risk
B
JS Execution Cost
837ms total JS execution
REVIEW
837ms total JS execution
Warning::
https://m.so.com/?src=so.com: 583ms CPU time
Warning::
Unattributable: 255ms CPU time
Warning::
Third-party scripts: 837ms (100% of total)

Main Thread Breakdown

Script Evaluation 36% Other 33% Style & Layout 13% Script Parsing & Compilation 11% Parse HTML & CSS 5%
ScriptTotalScriptingParse/CompileParty
https://m.so.com/?src=so.com583ms268ms88ms3rd
Unattributable255ms7ms0ms3rd
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
622 KB transferred, 29 requests
PASS
622 KB transferred, 29 requests
Info::
Page weighs 640 KB (622 KB transferred)
Info::
29 HTTP requests
Info::
Estimated 0.13 g CO2 per page load
622 KB / 2.4 MB budget
622 KB transferred
29 requests
0.13 g CO2 per page load
HTML 476.8 KiB 77%
Images 131.0 KiB 21%
JavaScript 12.3 KiB 2%
Other 2.1 KiB 0%
0 2.4 MB 4.9 MB
Under budget
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
3 scripts, 0 KB unused
PASS
3 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://weather.hao.360.cn/api/weather_info.php?type=area,air,realtime&app=searchApp&format=jsonp&callback=_jsonpj4d3tkzyv191 KB—✓3rd
https://api.ssl.so.com/cloud_config?keys=footer.html&from=m.so.com&callback=_jsonpd12ieus82qd1 KB—✓3rd
https://ss.360tres.com/callback/252c05f9a016a9eb/_252c05f9a016a9eb/iScroll5.js11 KB—✓3rd
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
6 hints, 0 missing preconnects
PASS
6 hints, 0 missing preconnects
Info::
Page uses 6 resource hint(s)

Current Resource Hints

preconnect
—
preload
—
dns-prefetch
6
prefetch
—

6 resource hints configured

A
Page Weight Inventory
29 resources · 622 KB · 0 KB savings available
PASS
29 resources · 622 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 622 KB
Warning::
28 third-party resources (100% of weight)
Info::
1 resources over 200KB
29 resources · 622.3 KiB · 28 third-party Within 1MB page-weight target
Document 77% · 477.5 KiB
Image 21% · 132.5 KiB
JavaScript 2% · 12.3 KiB
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
29 requests over 10724ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 6.8 s LCP 8.3 shttps://so.com// https://so.com/ — 301 — 305 B — 1.7 s — http/1.1https://www.so.com/?src=so.comwww.so.com/?src=so.com https://www.so.com/?src=so.com — 302 — 350 B — 1.5 s — http/1.1https://m.so.com/?src=so.comm.so.com/?src=so.com https://m.so.com/?src=so.com — 200 — 476.8 KiB — 4.4 s — http/1.1https://so1.360tres.com/t0164b172cd102cdfce.pngso1.360tres.com/t0164b172cd102cdfce... https://so1.360tres.com/t0164b172cd102cdfce.png — 200 — 3.7 KiB — 1.9 s — h2data:image/webp;base64,UklGRiQAAABXRUJQVlA4IBgAAAAwAQCdASoBAAEAAgA0JaQAA3AA/vv9UAA=data:image/webp;base64,UklGRiQAAABX... data:image/webp;base64,UklGRiQAAABXRUJQVlA4IBgAAAAwAQCdASoBAAEAAgA0JaQAA3AA/vv9UAA= — 200 — 0 B — 0 ms — datahttps://ss1.360tres.com/ssl/8f1849258cf96581.svgss1.360tres.com/ssl/8f1849258cf9658... https://ss1.360tres.com/ssl/8f1849258cf96581.svg — 200 — 1.1 KiB — 668 ms — h2https://ss1.360tres.com/static/a9a52087304255ba.svgss1.360tres.com/static/a9a520873042... https://ss1.360tres.com/static/a9a52087304255ba.svg — 200 — 4.4 KiB — 669 ms — h2https://so1.360tres.com/t019d90cf0b338386ce.pngso1.360tres.com/t019d90cf0b338386ce... https://so1.360tres.com/t019d90cf0b338386ce.png — 200 — 16.7 KiB — 552 ms — h2https://so1.360tres.com/t01eb92ea006e6768c8.pngso1.360tres.com/t01eb92ea006e6768c8... https://so1.360tres.com/t01eb92ea006e6768c8.png — 200 — 14.0 KiB — 545 ms — h2https://so1.360tres.com/t01e448f2b4e421b799.pngso1.360tres.com/t01e448f2b4e421b799... https://so1.360tres.com/t01e448f2b4e421b799.png — 200 — 10.0 KiB — 551 ms — h2https://so1.360tres.com/t014c9f32cdc38225d6.pngso1.360tres.com/t014c9f32cdc38225d6... https://so1.360tres.com/t014c9f32cdc38225d6.png — 200 — 11.0 KiB — 551 ms — h2https://so1.360tres.com/t012e4d67e0a7d2db6e.pngso1.360tres.com/t012e4d67e0a7d2db6e... https://so1.360tres.com/t012e4d67e0a7d2db6e.png — 200 — 10.9 KiB — 551 ms — h2https://ss1.360tres.com/static/7bf93a43e58716d6.svgss1.360tres.com/static/7bf93a43e587... https://ss1.360tres.com/static/7bf93a43e58716d6.svg — 200 — 747 B — 668 ms — h2https://ss1.360tres.com/static/6e8f574e01334609.svgss1.360tres.com/static/6e8f574e0133... https://ss1.360tres.com/static/6e8f574e01334609.svg — 200 — 1.2 KiB — 669 ms — h2https://weather.hao.360.cn/api/weather_info.php?type=area,air,realtime&app=searchApp&format=jsonp&callback=_jsonpj4d3tkzyv19weather.hao.360.cn/api/weather_info... https://weather.hao.360.cn/api/weather_info.php?type=area,air,realtime&app=searchApp&format=jsonp&callback=_jsonpj4d3tkzyv19 — 200 — 568 B — 1.3 s — http/1.1https://api.ssl.so.com/cloud_config?keys=footer.html&from=m.so.com&callback=_jsonpd12ieus82qdapi.ssl.so.com/cloud_config?keys=fo... https://api.ssl.so.com/cloud_config?keys=footer.html&from=m.so.com&callback=_jsonpd12ieus82qd — 200 — 719 B — 1.8 s — http/1.1https://ss.360tres.com/callback/252c05f9a016a9eb/_252c05f9a016a9eb/iScroll5.jsss.360tres.com/callback/252c05f9a01... https://ss.360tres.com/callback/252c05f9a016a9eb/_252c05f9a016a9eb/iScroll5.js — 200 — 11.1 KiB — 1.5 s — h2https://s.360.cn/mso/disp.gif?pro=m_so&pid=home_next&u=https%3A%2F%2Fm.so.com%2F&guid=12561181.7113812286121381031.1776798845027.4100&srcg=default_srcg&src=so.com&mod=right_tip&cat=&value=show&t=1776798847460s.360.cn/mso/disp.gif?pro=m_so&pid=... https://s.360.cn/mso/disp.gif?pro=m_so&pid=home_next&u=https%3A%2F%2Fm.so.com%2F&guid=12561181.7113812286121381031.1776798845027.4100&srcg=default_srcg&src=so.com&mod=right_tip&cat=&value=show&t=1776798847460 — 200 — 190 B — 885 ms — h2https://s.360.cn/mso/srp.gif?pro=m_so&pid=home_next&u=https%3A%2F%2Fm.so.com%2F&guid=12561181.7113812286121381031.1776798845027.4100&srcg=default_srcg&src=so.com&ssl=1&t=1776798847465s.360.cn/mso/srp.gif?pro=m_so&pid=h... https://s.360.cn/mso/srp.gif?pro=m_so&pid=home_next&u=https%3A%2F%2Fm.so.com%2F&guid=12561181.7113812286121381031.1776798845027.4100&srcg=default_srcg&src=so.com&ssl=1&t=1776798847465 — 200 — 189 B — 886 ms — h2https://so1.360tres.com/t01b881ef4496e4a570.pngso1.360tres.com/t01b881ef4496e4a570... https://so1.360tres.com/t01b881ef4496e4a570.png — 200 — 1.2 KiB — 731 ms — h2https://so1.360tres.com/t010d276852f4bb7d9a.pngso1.360tres.com/t010d276852f4bb7d9a... https://so1.360tres.com/t010d276852f4bb7d9a.png — 200 — 489 B — 520 ms — h2https://so1.360tres.com/t013513ef4a86e91ef7.pngso1.360tres.com/t013513ef4a86e91ef7... https://so1.360tres.com/t013513ef4a86e91ef7.png — 200 — 1.4 KiB — 731 ms — h2https://so1.360tres.com/t01dd4335eea3cdb23f.pngso1.360tres.com/t01dd4335eea3cdb23f... https://so1.360tres.com/t01dd4335eea3cdb23f.png — 200 — 492 B — 731 ms — h2https://so1.360tres.com/t0119ae4dccbc403f76.pngso1.360tres.com/t0119ae4dccbc403f76... https://so1.360tres.com/t0119ae4dccbc403f76.png — 200 — 10.3 KiB — 440 ms — h2https://so1.360tres.com/t01fa7f2a8592fcbb5a.pngso1.360tres.com/t01fa7f2a8592fcbb5a... https://so1.360tres.com/t01fa7f2a8592fcbb5a.png — 200 — 11.8 KiB — 441 ms — h2https://so1.360tres.com/t01f923269991d92e8e.pngso1.360tres.com/t01f923269991d92e8e... https://so1.360tres.com/t01f923269991d92e8e.png — 200 — 15.0 KiB — 443 ms — h2https://so1.360tres.com/t01c0f01d9ccda41893.pngso1.360tres.com/t01c0f01d9ccda41893... https://so1.360tres.com/t01c0f01d9ccda41893.png — 200 — 13.2 KiB — 444 ms — h2https://so1.360tres.com/d/app/tp/weather/1.pngso1.360tres.com/d/app/tp/weather/1.... https://so1.360tres.com/d/app/tp/weather/1.png — 200 — 3.1 KiB — 222 ms — h2https://m.so.com/favicon.icom.so.com/favicon.ico https://m.so.com/favicon.ico — 200 — 1.5 KiB — 1.2 s — 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 837ms · 477KB · ¥41/mo
m.so.com
Other
Costly
Execution 583ms
Transfer 477 KB
Monthly Cost ¥29/mo
Unattributable
Other
Costly
Execution 255ms
Transfer 0 KB
Monthly Cost ¥13/mo

These scripts may cost more than they're worth

  • m.so.com adds 583ms and costs ~¥29/month
  • Unattributable adds 255ms and costs ~¥13/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

m.so.com takes 583ms 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

Unattributable takes 255ms 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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