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

alibabacloud.com

https://alibabacloud.com· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

alibabacloud.com

Mobile

Sponsored

Hosting Provider

Alibaba Cloud

alibabacloud.com

IP Address

47.88.198.24

Server Location

🇸🇬 Singapore, Singapore

ASN

AS45102

Organization

Alibaba.com LLC

Server

Tengine

Nameservers

ns4.aliyun.com.ns3.aliyun.com.ns5.aliyun.com.

Performance

Page Speed

8.9 MB

172 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

React

Infrastructure

Hosting

Alibaba Cloud

Technology Stack

9 Technologies Detected

CSS Frameworks

Tailwind CSS

Ant Design

Advertising

TikTok Pixel Microsoft Advertising

Frameworks

Libraries

Other

Analytics

Web Servers

SEO Analysis

D47/100

alibabacloud.comalibabacloud.com

Alibaba Cloud: Reliable Secure Cloud Solutions to Empower Your Glob...

Alibaba Cloud offers a integrated suite of cloud products and services that are reliable and secure, to help you build cloud infrastructure, data centers in ...

Title truncated. Description truncated.

Title Length78 chars

Recommended: 50-60 chars

Description Length214 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (89/99)

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

14 URLs

robots.txt

22 rules

Sitemap reference found

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

202d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

11.08.2025

Valid Until

05.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

*.aliyun.commanager.channel.aliyun.com*.account.ltc.aliyun.com*.ace.aliyun.com*.acs-internal.aliyuncs.com*.acs.aliyun.com*.ads.aliyun.com*.ai.aliyun.com+12 more

SHA-256 Fingerprint

3F:2F:EA:98:AA:F4:99:7B:48:F5:2D:E0:4C:42:B9:74:88:A1:2E:43...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 60s(max-age=60,s-maxage=60)

content-encoding

📦 Gzip(gzip)

content-length

31351

content-type

text/html; charset=utf-8

date

Sat, 14 Feb 2026 08:12:35 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

mx2.mail.aliyun.com

Domain Information

alibabacloud.com

Domain Age

16y 5m

Created

08.09.2009

Expires

08.09.2030

Last Updated

18.12.2025

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

TrustArc

Cookie Consent Banner

TrustArc

GDPR Indicators

Cookie consent banner detected

CMP: TrustArc

Data Protection Officer mentioned

Typography & Readability

Helvetica Neue

43/100

Readability

/30

25/40

16px · LH 3.75

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Helvetica Neue

Sans

Body Font

Helvetica Neue

Sans16px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

18px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Wide line spacing (3.75). Consider 1.4-1.8 for better flow.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

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

⚠️ Risky: Text appears on background images without overlay protection.

⚠️ Cramped layout: 10 elements lack adequate spacing.

Business & Marketing Stack

7 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Advertising

TikTok PixelMid-Market

Microsoft AdsEnterprise

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

TrustArcEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

28 Resources

Scripts

Styles

Async

Defer

Top Script Sources

g.alicdn.com(14)analytics.tiktok.com(1)bat.bing.com(1)googletagmanager.com(1)assets.alicdn.com(1)

Website Identity