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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stcn.com

https://stcn.com· First analyzed 20 Feb 2026· Updated 20 Feb 2026

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stcn.com

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Hosting Provider

Aliyun Computing Co., LTD

IP Address

47.112.24.129

Server Location

🇨🇳 Shenzhen, China

ASN

AS37963

Organization

Aliyun Computing Co., LTD

Nameservers

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

Performance

Page Speed

7.1 MB

177 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Aliyun Computing Co., LTD

Technology Stack

4 Technologies Detected

Libraries

UI Components

CSS Frameworks

SEO Analysis

F29/100

stcn.comstcn.com

证券时报官方网站-中国资本市场信息披露平台

证券时报，证券时报网，由人民日报社主管主办，是证券市场权威信息披露媒体，也是中国资本市场的重要信息披露平台。提供全天候7*24小时财经证券类资讯，内容丰富，包括时报快讯、股市新闻、财经资讯、基金净值、债券、期货、上市公司公告等，为用户提供全方位、最新鲜的财经信息。打造了“信披168”综合服务专区，资本市场投教“星...

Description truncated.

Title Length21 chars

Recommended: 50-60 chars

Description Length178 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (152/152)

8 issues found

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Crawlability

Sitemap

robots.txt

2 rules

Allows all crawlers

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Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

213d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

09.09.2025

Valid Until

21.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.stcn.comstcn.com

SHA-256 Fingerprint

74:A2:9A:74:E5:15:6D:DC:46:B1:51:2F:9B:74:14:C3:82:37:B5:B4...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Fri, 20 Feb 2026 02:00:56 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

pragma

no-cache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mxbiz1.qq.com

mxbiz2.qq.com

Domain Information

stcn.com

Domain Age

23y 6m

Created

10.08.2002

Expires

10.08.2028

Last Updated

16.10.2024

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

PingFang SC

36/100

Readability

/30

25/40

16px · LH 1.15

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

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

⚠️ Tight line spacing (1.15). 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.

⚠️ Cramped layout: 37 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

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Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static-web.stcn.com(9)c.cnzz.com(4)g.alicdn.com(2)v1.cnzz.com(2)o.alicdn.com(1)

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Last analyzed: 20 Feb 2026 at 02:01

Historical Analysis & Change Tracking