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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cgtn.com

https://cgtn.com· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

cgtn.com

$Desktop screenshot of cgtn.com$

$Mobile screenshot of cgtn.com$

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

54.222.252.100

Server Location

🇨🇳 Beijing, China

ASN

AS55960

Organization

AWS EC2 (cn-north-1)

Server

Nginx

Nameservers

vip3.alidns.com.vip4.alidns.com.

Performance

Page Speed

55 KB

107 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

Infrastructure

Hosting

Amazon Web Services (AWS)

Technology Stack

14 Technologies Detected

Analytics

Libraries

UI Components

Swiper Slick Carousel

CSS Frameworks

Other

Tag Managers

Other

Web Servers

SEO Analysis

A80/100

cgtn.comcgtn.com

CGTN | Breaking News, China News, World News and Video

Get the news as it breaks and go behind the day's top stories, from politics, business, culture and sports to nature, travel and technology. CGTN delivers a ...

Description truncated.

Title Length54 chars

Recommended: 50-60 chars

Description Length242 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

28 URLs

robots.txt

26 rules

Sitemap reference found

Sponsored

Security Score

81%Very Good

Static / Informational

HTTPS

No WAF

26d

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/2+H3

Valid From

07.02.2025

Valid Until

10.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.cgtn.comcgtn.com

SHA-256 Fingerprint

E9:BA:F5:C2:3B:FA:28:D8:B3:1D:59:92:A5:90:BB:06:33:9D:B1:75...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

alt-svc

h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443...

content-length

406107

content-type

text/html

date

Thu, 12 Feb 2026 23:06:25 GMT

etag

"bb18f91b580c80e48c4a7d2066aa623e"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mxbiz1.qq.com

mxbiz2.qq.com

Domain Information

cgtn.com

Domain Age

23y 3m

Created

15.11.2002

Expires

15.11.2026

Last Updated

01.11.2025

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Georgia + HelveticaNeueLTPro-Bd

57/100

Readability

/30

22/40

14px · LH --

Hierarchy

/20

15/25

1.29x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

Georgia

Serif18px

Body Font

HelveticaNeueLTPro-Bd

Sans14px

Contrast Ratio

Reading Comfort

~74 CPL

Optimal (45–75)

18px

14px

Minor Second

Scale

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ Protected text on images: Using gradient for readability.

✅ Optimal line length: ~74 characters per line is comfortable to read.

⚠️ Cramped layout: 27 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

Crazy EggSMB

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

ui.cgtn.com(11)googletagmanager.com(3)script.crazyegg.com(2)google-analytics.com(2)googleoptimize.com(1)

Website Identity

cgtn.com

23 years old

Alibaba Cloud Computing (Beijing) Co., Ltd.

Social Profiles

Facebook X (Twitter)Instagram LinkedIn Pinterest Telegram

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Last analyzed: 12 Feb 2026 at 23:19

Historical Analysis & Change Tracking