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https://s.click.aliexpress.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
93
GRADE
A
FIX
2
REVIEW
1
PASS
10
INFO
2

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

Mobile Desktop
100
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.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
54
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.

243 ms

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

445 ms

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

16 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.

243 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.

2.41 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 s
Checks
15
10 PASS 1 REVIEW 2 FIX
D
Third-Party Impact
Action
99% third-party, 0 ms blocking
FIX
99% third-party, 0 ms blocking
Warning::
Third-party code accounts for 99% of page weight (191.3 KiB of 194.0 KiB)
Info::
Third-party blocking time is low (0 ms)
99%
First-party Third-party
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: no-cache, no-store, max-age=0, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-cache, no-store, max-age=0, must-revalidate

DirectiveValueMeaning
no-cache—Cache but always revalidate first
no-store—Never cache this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
194 KB transferred, 10 requests
PASS
194 KB transferred, 10 requests
Info::
Page weighs 522 KB (194 KB transferred)
Info::
10 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
194 KB / 2.4 MB budget
194 KB transferred
10 requests
0.04 g CO2 per page load
JavaScript 146.7 KiB 76%
Other 44.3 KiB 23%
HTML 1.7 KiB 1%
Other 1.0 KiB 1%
Images 335 B 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+
Image Optimization
1 images, 0 KB saveable
PASS
1 images, 0 KB saveable
Info::
All images are well-optimized
1 images 0 KB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
82ms total JS execution
PASS
82ms total JS execution
Info::
https://assets.aliexpress-media.com/g/AWSC/et/1.83...: 82ms CPU time
Warning::
Third-party scripts: 82ms (100% of total)

Main Thread Breakdown

Script Evaluation 73% Other 15% Script Parsing & Compilation 10%
ScriptTotalScriptingParse/CompileParty
https://assets.aliexpress-media.com/g/AWSC/et/1.83.41/et_f.js82ms74ms8ms3rd
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
7 scripts, 0 KB unused
PASS
7 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://assets.alicdn.com/g/alilog/??aplus_plugin_aefront/index.js,mlog/aplus_v2.js10 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=2026010817155044 KB—✓3rd
https://ae.mmstat.com/eg.js?t=17768976922470 KB—✓3rd
https://o.alicdn.com/baxia/baxia-entry-gray/index.js7 KB—✓3rd
https://g.alicdn.com/AWSC/AWSC/awsc.js4 KB—✓3rd
https://assets.alicdn.com/g/sd/baxia/2.5.36/baxiaCommon.js11 KB—✓3rd
https://assets.aliexpress-media.com/g/AWSC/et/1.83.41/et_f.js115 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A
Page Weight Inventory
10 resources · 194 KB · 0 KB savings available
PASS
10 resources · 194 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 194 KB
Warning::
8 third-party resources (99% of weight)
10 resources · 194.0 KiB · 8 third-party Within 1MB page-weight target
JavaScript 98% · 191.0 KiB
Document 1% · 1.7 KiB
Other 1% · 1.0 KiB
Image 0% · 335 B
Network Waterfall
10 requests over 1460ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 243 ms LCP 445 mshttps://s.click.aliexpress.com// https://s.click.aliexpress.com/ — 200 — 1.7 KiB — 77 ms — h2https://assets.alicdn.com/g/alilog/??aplus_plugin_aefront/index.js,mlog/aplus_v2.jsassets.alicdn.com/g/alilog/??aplus_... https://assets.alicdn.com/g/alilog/??aplus_plugin_aefront/index.js,mlog/aplus_v2.js — 200 — 9.7 KiB — 12 ms — h2https://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=20260108171550assets.alicdn.com/g/alilog/??s/8.15... 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 — 200 — 44.3 KiB — 10 ms — h2https://s.click.aliexpress.com/favicon.ico/favicon.ico https://s.click.aliexpress.com/favicon.ico — 200 — 1.0 KiB — 15 ms — h2https://ae.mmstat.com/eg.js?t=1776897692247ae.mmstat.com/eg.js?t=1776897692247 https://ae.mmstat.com/eg.js?t=1776897692247 — 200 — 331 B — 1.0 s — h2https://o.alicdn.com/baxia/baxia-entry-gray/index.jso.alicdn.com/baxia/baxia-entry-gray... https://o.alicdn.com/baxia/baxia-entry-gray/index.js — 200 — 6.7 KiB — 11 ms — h2https://ae.mmstat.com/g.gif?logtype=1&title=Global%20Affiliate&pre=&scr=800x600&_p_url=https%3A%2F%2Fs.click.aliexpress.com%2F&cna=nTxwIuvRtWcCAY3jvHjJJuaz&spm-cnt=0.0.0.0.2b157b90Oi1sty&uidaplus=&aplus=&ali_beacon_id=-&ali_apache_id=-&ali_apache_track=-&ali_apache_tracktmp=-&dmtrack_c=%7Bacs_rt%3D19e4782c0ac041899ce16a6fa4a2e596%7Caep_usuc_f%3D-%7Caeu_cid%3D-%7D&hn=global-traffic-holmes-f011136072023.de198&asid=AQAAAACcTulpIM0KUAAAAAC0LgCWkyrC1A%3D%3D&sidx=0&pageid=19db75b1239f1336abda75297105aae4fd0138b2ea&dmtrack_b=%7Bifm%3D0%7Clogin%3D0%7D&_p_uid=-&p=1&o=mac&b=chrome147&s=800x600&w=webkit&ism=mac&cache=59e9830&lver=8.15.25&jsver=aplus_std&pver=0.7.12&tag=0&stag=2&lstag=0&_slog=0ae.mmstat.com/g.gif?logtype=1&title... https://ae.mmstat.com/g.gif?logtype=1&title=Global%20Affiliate&pre=&scr=800x600&_p_url=https%3A%2F%2Fs.click.aliexpress.com%2F&cna=nTxwIuvRtWcCAY3jvHjJJuaz&spm-cnt=0.0.0.0.2b157b90Oi1sty&uidaplus=&aplus=&ali_beacon_id=-&ali_apache_id=-&ali_apache_track=-&ali_apache_tracktmp=-&dmtrack_c=%7Bacs_rt%3D19e4782c0ac041899ce16a6fa4a2e596%7Caep_usuc_f%3D-%7Caeu_cid%3D-%7D&hn=global-traffic-holmes-f011136072023.de198&asid=AQAAAACcTulpIM0KUAAAAAC0LgCWkyrC1A%3D%3D&sidx=0&pageid=19db75b1239f1336abda75297105aae4fd0138b2ea&dmtrack_b=%7Bifm%3D0%7Clogin%3D0%7D&_p_uid=-&p=1&o=mac&b=chrome147&s=800x600&w=webkit&ism=mac&cache=59e9830&lver=8.15.25&jsver=aplus_std&pver=0.7.12&tag=0&stag=2&lstag=0&_slog=0 — 200 — 335 B — 260 ms — h2https://g.alicdn.com/AWSC/AWSC/awsc.jsg.alicdn.com/AWSC/AWSC/awsc.js https://g.alicdn.com/AWSC/AWSC/awsc.js — 200 — 4.1 KiB — 27 ms — h2https://assets.alicdn.com/g/sd/baxia/2.5.36/baxiaCommon.jsassets.alicdn.com/g/sd/baxia/2.5.36... https://assets.alicdn.com/g/sd/baxia/2.5.36/baxiaCommon.js — 200 — 11.0 KiB — 7 ms — h2https://assets.aliexpress-media.com/g/AWSC/et/1.83.41/et_f.jsassets.aliexpress-media.com/g/AWSC/... https://assets.aliexpress-media.com/g/AWSC/et/1.83.41/et_f.js — 200 — 114.8 KiB — 12 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 82ms · 115KB · ¥4/mo
assets.aliexpress-media.com
Other
Optional
Execution 82ms
Transfer 115 KB
Monthly Cost ¥4/mo

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

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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