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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qq.com

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

Export

qq.com

Mobile

Sponsored

Hosting Provider

Chinanet GD

IP Address

113.108.81.189

Server Location

🇨🇳 Guangzhou, China

ASN

AS4134

Organization

Chinanet GD

Server

tRPC-Gateway

Nameservers

ns3.qq.com.ns4.qq.com.ns1.qq.com.ns2.qq.com.

Performance

Page Speed

2.6 MB

223 requests

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

Frontend

Framework

React

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Chinanet GD

Detected API Sources

https://tnfe.gtimg.com/tnt/api...

Technology Stack

3 Technologies Detected

Frameworks

React

Other

Lottie

CSS Frameworks

Tailwind CSS

SEO Analysis

F35/100

qq.comqq.com

腾讯网

腾讯网从2003年创立至今，已经成为集新闻信息，区域垂直生活服务、社会化媒体资讯和产品为一体的互联网媒体平台。腾讯网下设新闻、科技、财经、娱乐、体育、汽车、时尚等多个频道，充分满足用户对不同类型资讯的需求。同时专注不同领域内容，打造精品栏目，并顺应技术发展趋势，推出网络直播等创新形式，改变了用户获取资讯的方式和习惯。

Title Length3 chars

Recommended: 50-60 chars

Description Length159 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (163/174)

6 issues found

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Security Score

51%Poor

Interactive

HTTPS

No WAF

51d

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-length

23935

content-security-policy

frame-ancestors none

content-type

text/html; charset=utf-8

date

Tue, 10 Feb 2026 18:04:58 GMT

Good Warning Issue

Typography & Readability

PingFang SC

38/100

Readability

/30

25/40

16px · LH 1.00

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

PingFang SC

Body Font

PingFang SC

Sans16px

Contrast Ratio

Reading Comfort

Single Family

left aligned

16px

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

⚠️ Tight line spacing (1.00). Consider 1.4-1.6 for better readability.

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

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

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

mat1.gtimg.com(8)vm.gtimg.cn(2)staticfile.qq.com(1)l.qq.com(1)wa.gtimg.com(1)

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Last analyzed: 10 Feb 2026 at 18:05

Historical Analysis & Change Tracking