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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chinadaily.com.cn

https://chinadaily.com.cn· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

chinadaily.com.cn

Mobile

Sponsored

Hosting Provider

China Mobile

IP Address

111.13.49.147

Server Location

🇨🇳 Guangzhou, China

ASN

AS9808

Organization

China Mobile

Server

Nginx

Nameservers

dns1.zdnscloud.info.cns1.zdnscloud.net.vns1.zdnscloud.biz.ins1.zdnscloud.com.

Performance

Page Speed

261 KB

156 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

China Mobile

Technology Stack

5 Technologies Detected

CSS Frameworks

Libraries

Advertising

Web Servers

SEO Analysis

D41/100

chinadaily.com.cnchinadaily.com.cn

China Daily Website - Connecting China Connecting the World

Chinadaily.com.cn is the largest English portal in China, providing news, business information, BBS, learning materials. The Website has channels as China, B...

Description truncated.

Title Length59 chars

Recommended: 50-60 chars

Description Length269 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (102/144)

7 issues found

Upgrade to view details

Sponsored

Security Score

31%Critical

Interactive

HTTPS

No WAF

366d

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age

570

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html;charset=UTF-8

date

Wed, 11 Feb 2026 01:50:48 GMT

expires

Wed, 11 Feb 2026 01:41:11 GMT

Good Warning Issue

Typography & Readability

Times New Roman + Georgia

43/100

Readability

/30

12/40

13px · LH 1.23

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Times New Roman

Serif

Body Font

Georgia

Serif13px

Contrast Ratio

Reading Comfort

~46 CPL

Optimal (45–75)

30px

24px

13px

❌ Critical: 13px body text is too small. Increase to at least 14px.

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

✅ Protected text on images: Using gradient for readability.

✅ Optimal line length: ~46 characters per line is comfortable to read.

⚠️ Cramped layout: 31 elements lack adequate spacing.

✅ 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

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

chinadaily.com.cn(8)img2.chinadaily.com.cn(5)xd.cdurl.cn(3)js.ptengine.cn(1)local(1)

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Last analyzed: 11 Feb 2026 at 01:51

Historical Analysis & Change Tracking