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.

Back to Search

buaa.edu.cn

https://buaa.edu.cn· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

buaa.edu.cn

Sponsored

Hosting Provider

Chinanet BJ

IP Address

106.39.41.16

Server Location

🇨🇳 Beijing, China

ASN

AS4847

Organization

Chinanet BJ

Server

*********

Nameservers

ns1.buaa.edu.cn.ns2.buaa.edu.cn.ns3.buaa.edu.cn.

Performance

Page Speed

34.7 MB

118 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Chinanet BJ

Technology Stack

6 Technologies Detected

Libraries

Other

Other

UI Components

CSS Frameworks

SEO Analysis

F29/100

buaa.edu.cnbuaa.edu.cn

北京航空航天大学

No description available for this page.

Title Length8 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description - important for click-through rates
• Missing H1 tag - every page should have one H1
• Many images missing alt text (53/53)

8 issues found

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Security Score

31%Critical

Interactive

HTTPS

No WAF

253d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

30.09.2025

Valid Until

01.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.buaa.edu.cnbuaa.edu.cn

SHA-256 Fingerprint

F9:8F:B9:73:31:37:5C:25:34:16:D6:48:08:4D:90:CB:02:B2:36:7B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 600s(max-age=600)

content-encoding

📦 Gzip(gzip)

content-language

zh-CN

content-length

12717

content-type

text/html

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mx-buaa-edu-cn.icoremail.net

mx.buaa.edu.cn

Domain Information

buaa.edu.cn

DNSSEC

Not Enabled

Typography & Readability

微软雅黑

51/100

Readability

/30

22/40

14px · LH --

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

微软雅黑

Sans

Body Font

微软雅黑

Sans14px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

50px

18px

14px

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

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

✅ Consistent design: Single font family with weight variations is a modern best practice.

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 51 elements lack adequate spacing.

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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

js(9)local(8)_sitegray(1)

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Last analyzed: 20 Feb 2026 at 09:44

Historical Analysis & Change Tracking