Performance
· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.16 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.59 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
10 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.006
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.30 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.
3.67 s
Page Load Progression
375 ms
750 ms
1.1 s 1.5 s 1.9 s
2.2 s 2.6 s 3.0 sDPage Weight BudgetAction2.4 MB transferred, 140 requestsFIX
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS BundlesAction40 scripts, 441 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://webim.made-in-china.com/super-tm-icon/static/js/icon.c082d6da.js | 190 KB | 108 KB (57%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-731984560&cx=c>m=4e64k0h2 | 137 KB | 68 KB (50%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-T39J99&r=1776767255383 | 171 KB | 60 KB (35%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-VEFCZRQMG4&cx=c>m=4e64k0h2 | 170 KB | 57 KB (33%) | ✓ | 3rd |
| https://cdn.consentmanager.net/delivery/js/cmp_final.min.js | 101 KB | 40 KB (40%) | ✓ | 3rd |
| https://www.micstatic.com/nail/pc/header-home_2c6f0f4c.js | 85 KB | 39 KB (46%) | ✓ | 3rd |
| https://www.micstatic.com/common/js/libs/sensors/sfaw_1.27.2.js?r=1776767255383 | 60 KB | 35 KB (59%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 34 KB (35%) | ✓ | 3rd |
| https://c.delivery.consentmanager.net/delivery/cmp.php?&cdid=332619b601d1c&h=https%3A%2F%2Fwww.made-in-china.com%2F&&__cmpfcc=1&l=en&ls=EN_EN_EN&lp=EN&o=1776806196846 | 3 KB | — | ✓ | 3rd |
| https://www.micstatic.com/mic-search/js/home-2019/nav_c5fc9765.js | 1 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction140 resources · 2.4 MB · 441 KB savings availableFIX
~440.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 140 resources | 2.4 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction47 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
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.
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.
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.
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.
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.
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.
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.
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.
Performance issues directly impact user engagement and conversion rates.
BJS Execution Cost892ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.made-in-china.com/ | 247ms | 79ms | 2ms | 3rd |
| Unattributable | 141ms | 7ms | 0ms | 3rd |
| https://www.micstatic.com/nail/pc/header-home_2c6f0f4c.js | 100ms | 40ms | 6ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-731984560&cx=c>m=4e64k0h2 | 94ms | 86ms | 7ms | 3rd |
| https://www.micstatic.com/common/js/libs/faw/faw.1.3.0.js?r=1776767255383 | 89ms | 85ms | 1ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-T39J99&r=1776767255383 | 84ms | 71ms | 11ms | 3rd |
| https://webim.made-in-china.com/super-tm-icon/static/js/icon.c082d6da.js | 70ms | 44ms | 11ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-VEFCZRQMG4&cx=c>m=4e64k0h2 | 67ms | 56ms | 10ms | 3rd |
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading5 fonts (100 KB)PASS
Web fonts
5
100 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall140 requests over 4773msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.made-in-china.com www.made-in-china.com | Other | 247ms | 61 KB | — | ¥12/mo | Costly |
Unattributable Unattributable | Other | 141ms | 0 KB | — | ¥7/mo | Optional |
www.micstatic.com www.micstatic.com | Other | 100ms | 85 KB | 46% | ¥5/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 94ms | 137 KB | 50% | ¥5/mo | Optional |
www.micstatic.com www.micstatic.com | Other | 89ms | 11 KB | — | ¥4/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 84ms | 171 KB | 35% | ¥4/mo | Optional |
webim.made-in-china.com webim.made-in-china.com | Other | 70ms | 190 KB | 57% | ¥3/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 67ms | 170 KB | 33% | ¥3/mo | Optional |
These scripts may cost more than they're worth
- www.made-in-china.com adds 247ms and costs ~¥12/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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.made-in-china.com takes 247ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
57% of webim.made-in-china.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev