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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conac.cn

https://conac.cn· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

conac.cn

Mobile

Sponsored

Hosting Provider

CONAC (China Organizational Name Administration Center)

IP Address

111.235.170.201

Server Location

🇨🇳 Haidian, China

ASN

AS58811

Organization

CONAC (China Organizational Name Administration Center)

Server

Nginx

Nameservers

ns1.sdc.org.cn.ns2.sdc.org.cn.ns3.sdc.org.cn.

Performance

Page Speed

1.2 MB

24 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

CONAC (China Organizational Name Administration Center)

Technology Stack

4 Technologies Detected

CSS Frameworks

Libraries

Web Servers

SEO Analysis

F17/100

conac.cnconac.cn

政务和公益机构域名注册管理中心

No description available for this page.

Title Length15 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (4)

• Missing meta description - important for click-through rates
• Missing H1 tag - every page should have one H1
• Many images missing alt text (12/12)

9 issues found

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

38d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

21.02.2025

Valid Until

24.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.conac.cnconac.cn

SHA-256 Fingerprint

7F:50:C3:1E:E1:39:54:6A:86:E7:3D:2A:7D:16:90:37:3F:44:4C:09...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

server

nginx

date

Sat, 14 Feb 2026 12:09:51 GMT

content-type

text/html

last-modified

Mon, 24 Mar 2025 02:11:48 GMT

transfer-encoding

chunked

connection

keep-alive

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

conac.cn

DNSSEC

Not Enabled

Typography & Readability

微软雅黑 + 宋体

18/100

Readability

/30

12/40

12px · LH 1.83

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

微软雅黑

Sans

Body Font

宋体

Sans12px

Contrast Ratio

Reading Comfort

~91 CPL

Needs attention

16px

12px

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

✅ Good performance: Using 2 font families keeps load times fast.

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

⚠️ Wide lines: ~91 chars/line. Consider max-width for better reading flow.

⚠️ Cramped layout: 7 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

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Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

.(5)hm.baidu.com(1)dcs.conac.cn(1)

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Last analyzed: 14 Feb 2026 at 12:05

Historical Analysis & Change Tracking