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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cnki.net

https://cnki.net· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

cnki.net

Mobile

Sponsored

Hosting Provider

QingDao NEWJIAHUA NETWORKS Corp. Limited

IP Address

115.31.65.33

Server Location

🇨🇳 Beijing, China

ASN

AS4837

Organization

QingDao NEWJIAHUA NETWORKS Corp. Limited

Server

Microsoft IIS

Nameservers

dns.cnki.net.dns3.cnki.net.dns2.cnki.net.

Performance

Page Speed

1.6 MB

93 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

QingDao NEWJIAHUA NETWORKS Corp. Limited

Technology Stack

5 Technologies Detected

Libraries

CSS Frameworks

Web Servers

Frameworks

SEO Analysis

D47/100

cnki.netcnki.net

CNKI Overseas

CNKI provides global users with a unified search and discovery service for Chinese academic resources such as journals, dissertations, yearbooks, conference ...

Description truncated.

Title Length13 chars

Recommended: 50-60 chars

Description Length264 chars

Recommended: 120-160 chars

Issues (0)

8 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

389d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

05.02.2026

Valid Until

09.03.2027

OCSP Stapling

Enabled

Subject Alternative Names (10)

*.cnki.netcaj.d.cnki.neteng.tcm.cnki.netgb.tcm.cnki.netkb.tcm.cnki.netpdf.d.cnki.nettra.tcm.cnki.net*.oversea.cnki.net+2 more

SHA-256 Fingerprint

1B:47:AA:55:77:08:9C:9D:8C:24:32:32:34:AA:FE:AF:64:F8:4B:B5...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟣 Private(private)

connection

content-encoding

📦 Gzip(gzip)

content-length

377

content-type

text/html

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mgate.cnki.net

Domain Information

cnki.net

Domain Age

26y 10m

Created

07.04.1999

Expires

07.04.2032

Last Updated

26.12.2025

Registrar

Xin Net Technology Corporation

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

SourceSerifPro-Black + Helvetica Neue

62/100

Readability

/30

32/40

16px · LH 1.88

Hierarchy

/20

25/25

3.75x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

SourceSerifPro-Black

Serif60px

Body Font

Helvetica Neue

Sans16px

Contrast Ratio

Reading Comfort

~35 CPL

Needs attention

60px

32px

20px

16px

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

✅ Strong hierarchy: Headlines are 3.8x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

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

⚠️ Cramped layout: 11 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

28 Resources

Scripts

Styles

Async

Defer

Top Script Sources

o.oversea.cnki.net(10)js(7)w.cnzz.com(1)track.oversea.cnki.net(1)turing.captcha.qcloud.com(1)

Website Identity

Facebook X (Twitter)YouTube

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Last analyzed: 12 Feb 2026 at 13:59

Historical Analysis & Change Tracking