Performance
· 17 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.
811 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
811 ms
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
140 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.
811 ms
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
375 ms
750 ms 1.1 s 1.5 s 1.9 s 2.2 s 2.6 s 3.0 sDThird-Party ImpactAction99% third-party, 0 ms blockingFIX
DHTTP CachingActionno-store (uncacheable)FIX
no-cache, no-store, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
BJS Execution Cost589ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://assets.aliexpress-media.com/g/AWSC/et/1.83.41/et_f.js | 304ms | 273ms | 31ms | 3rd |
| Unattributable | 124ms | 7ms | 0ms | 3rd |
| https://assets.alicdn.com/g/alilog/??aplus_plugin_aefront/index.js,mlog/aplus_v2.js | 90ms | 68ms | 20ms | 3rd |
| https://s.click.aliexpress.com/ | 72ms | 39ms | 1ms | 1st |
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Page Weight Budget194 KB transferred, 10 requestsPASS
A+Text CompressionAll text resources are compressedPASS
A+Image Optimization1 images, 0 KB saveablePASS
A+Font LoadingNo web fonts (system fonts)PASS
A+JS Bundles7 scripts, 0 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://assets.alicdn.com/g/alilog/??aplus_plugin_aefront/index.js,mlog/aplus_v2.js | 10 KB | — | ✓ | 3rd |
| https://assets.alicdn.com/g/alilog/??s/8.15.25/plugin/aplus_client.js,aplus_cplugin/0.7.12/toolkit.js,aplus_cplugin/0.7.12/monitor.js,s/8.15.25/aplus_std.js,s/8.15.25/plugin/aplus_spmact.js,aplus_plugin_ae/0.0.9/index.js?v=20260108171550 | 44 KB | — | ✓ | 3rd |
| https://ae.mmstat.com/eg.js?t=1776897680012 | 0 KB | — | ✓ | 3rd |
| https://o.alicdn.com/baxia/baxia-entry-gray/index.js | 7 KB | — | ✓ | 3rd |
| https://g.alicdn.com/AWSC/AWSC/awsc.js | 4 KB | — | ✓ | 3rd |
| https://assets.alicdn.com/g/sd/baxia/2.5.36/baxiaCommon.js | 11 KB | — | ✓ | 3rd |
| https://assets.aliexpress-media.com/g/AWSC/et/1.83.41/et_f.js | 115 KB | — | ✓ | 3rd |
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
APage Weight Inventory10 resources · 194 KB · 0 KB savings availablePASS
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 10 resources | 193.8 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall10 requests over 2478msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
assets.aliexpress-media.com assets.aliexpress-media.com | Other | 304ms | 115 KB | — | ¥15/mo | Costly |
Unattributable Unattributable | Other | 124ms | 0 KB | — | ¥6/mo | Optional |
assets.alicdn.com assets.alicdn.com | Other | 90ms | 10 KB | — | ¥4/mo | Optional |
These scripts may cost more than they're worth
- assets.aliexpress-media.com adds 304ms and costs ~¥15/month
88% 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
assets.aliexpress-media.com takes 304ms 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