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.

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wechat.com

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

Export

wechat.com

Mobile

Sponsored

Hosting Provider

Aceville Pte.ltd

IP Address

43.154.240.170

Server Location

🇭🇰 Hong Kong, Hong Kong

ASN

AS132203

Server

TencentEdgeOne

Nameservers

ns3.wechat.com.ns4.wechat.com.ns1.wechat.com.ns2.wechat.com.

Performance

Page Speed

9 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Aceville Pte.ltd

Technology Stack

1 Technologies Detected

Libraries

jQueryv1.7.2

SEO Analysis

F35/100

wechat.comwechat.com

WeChat - Free messaging and calling app

Available for all kinds of platforms; enjoy group chat; support voice,photo,video and text messages.

Title Length39 chars

Recommended: 50-60 chars

Description Length108 chars

Recommended: 120-160 chars

Issues (3)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (2/2)
• Missing viewport meta tag - page may not be mobile-friendly

7 issues found

Upgrade to view details

Sponsored

Security Score

76%Good

Static / Informational

HTTPS

No WAF

65d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

08.04.2025

Valid Until

20.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.wechat.comwechat.com

SHA-256 Fingerprint

6C:07:66:9C:67:58:74:35:87:5C:0D:A4:E1:5E:C2:54:0A:D7:40:FF...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-headers

Authorization,Origin,No-Cache,X-Requested-With,If-Modified-S...

access-control-allow-methods

GET,HEAD,PUT,PATCH,POST,DELETE

access-control-allow-origin

access-control-max-age

1728000

connection

keep-alive

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mxbiz2.qq.com

mxbiz1.qq.com

Domain Information

wechat.com

Domain Age

22y 2m

Created

28.11.2003

Expires

28.11.2032

Last Updated

25.11.2025

Registrar

MarkMonitor Information Technology (Shanghai) Co., Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

PingHei

36/100

Readability

/30

20/40

12px · LH 1.75

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

PingHei

Body Font

PingHei

Sans12px

Contrast Ratio

Reading Comfort

~49 CPL

Optimal (45–75)

12px

❌ Critical: 12px body text is too small. Increase to at least 14px.

✅ Optimal line spacing: 1.75 ratio ensures comfortable reading.

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

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

✅ Optimal line length: ~49 characters per line is comfortable to read.

✅ Clean layout: Consistent center alignment throughout.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

newres.wechat.com(2)

Website Identity

Facebook

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Last analyzed: 14 Feb 2026 at 07:17

Historical Analysis & Change Tracking