What does StackOptic analyze?

StackOptic runs 18 analysis modules on any public website from a single URL. It detects 7,000+ technologies (CMS, frameworks, analytics, payments, CDN, hosting), evaluates SSL certificates and HTTP security headers with grades from A+ to F, measures Core Web Vitals (LCP, CLS, TBT, FCP), audits SEO meta tags and structured data, checks email security (SPF, DKIM, DMARC), analyzes AI & LLM readiness including bot access and llms.txt validation, extracts color palettes and typography, estimates carbon footprint, and generates permanent shareable reports.

Does it work on sites behind Cloudflare or bot protection?

Yes. StackOptic uses a real browser engine that loads pages exactly like a human visitor — executing JavaScript, rendering CSS, and handling redirects. This allows it to bypass Cloudflare, LiteSpeed, Sucuri, and other bot protection systems where traditional crawlers and HTTP-only tools fail.

What do I get on the free plan?

The free plan includes 5 analyses per day with access to all 18 modules, full scores, technology detection, and security grades. Every report is permanently accessible via a unique shareable URL — no login required to view. No credit card needed. AI-powered insights, re-analysis, PDF/JSON export, and comparison features are available on Pro ($24/mo) and Agency ($99/mo) plans.

What is AI & LLM readiness analysis?

This module evaluates how visible and citable your website is to AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Claude. It audits access permissions for 8 major AI bots, validates llms.txt and llms-full.txt files, scores citation-ready content structure, and analyzes structured data (JSON-LD) for GEO readiness — helping you rank in the next generation of search.

How long does an analysis take?

Most analyses complete in under 10 seconds. StackOptic runs all 18 modules in parallel using a real browser session, so you get technology detection, security audit, performance metrics, SEO analysis, and AI readiness scoring simultaneously.

How accurate are the results?

Detection is based on real browser execution — DOM inspection, JavaScript runtime analysis, HTTP headers, and DNS records. With 7,000+ technology signatures and Lighthouse-calibrated performance scoring, StackOptic achieves high accuracy for mainstream technologies.

What security checks are performed?

The security module evaluates SSL/TLS certificates, 12+ HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy), HTTPS enforcement, and email authentication (SPF, DKIM, DMARC). Each site receives a letter grade from A+ to F with specific remediation steps.

Do you store the websites I analyze?

StackOptic only stores publicly available information that any visitor to a website would see — HTML content, HTTP headers, DNS records, and screenshots. We do not access private data, log in to websites, or perform any intrusive testing.

Back to Search

aliexpress.com

https://aliexpress.com· First analyzed 10 Feb 2026· Updated 10 Feb 2026

Export

aliexpress.com

Mobile

Sponsored

Hosting Provider

Alibaba Cloud

alibabacloud.com

IP Address

47.246.173.237

Server Location

🇸🇬 Singapore, Singapore

ASN

AS45102

Organization

Alibaba.com LLC

Server

Tengine/Aserver

Nameservers

ns1.alibabadns.com.ns2.alibabadns.com.

Performance

Page Speed

858 KB

50 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Alibaba Cloud

Technology Stack

3 Technologies Detected

Meta Frameworks

Gatsby

CSS Frameworks

Tailwind CSS

Web Servers

Tengine

SEO Analysis

B72/100

aliexpress.comaliexpress.com

AliExpress - Affordable Chinese Stores & Free Shipping - Online Sho...

Passion shouldn't cost a fortune. On AliExpress, shop online for over 111 million affordable products from China on Fashion, Men's and Women's Clothing, Elec...

Title truncated. Description truncated.

Title Length72 chars

Recommended: 50-60 chars

Description Length256 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

38d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

https://hz.aliexpress.com

alt-svc

h3=":443"; ma=93600

content-encoding

📦 Gzip(gzip)

content-type

text/html;charset=UTF-8

date

Tue, 10 Feb 2026 23:22:28 GMT

eagleeye-traceid

210384b217707657484014398ef0e4

Good Warning Issue

Typography & Readability

Roboto

61/100

Readability

/30

30/40

20px · LH --

Hierarchy

/20

8/25

1.4x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Roboto

Sans28px

Body Font

Roboto

Sans20px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

28px

21px

24px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ Good performance: Using 1 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 28 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

assets.aliexpress-media.com(5)assets.alicdn.com(1)

Website Identity

aliexpress.com

Sponsored

Last analyzed: 10 Feb 2026 at 23:22

Historical Analysis & Change Tracking