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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uni-hamburg.de

https://uni-hamburg.de· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

uni-hamburg.de

Mobile

Sponsored

Hosting Provider

Universitaet Hamburg

IP Address

134.100.36.8

Server Location

🇩🇪 Hamburg, Germany

ASN

AS680

Server

Apache

Nameservers

dns1.rrz.uni-hamburg.de.dns-3.dfn.de.rzdspc1.informatik.uni-hamburg.de.dns2.rrz.uni-hamburg.de.+1 more

Performance

Page Speed

528 KB

32 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Universitaet Hamburg

Technology Stack

3 Technologies Detected

Libraries

jQuery

CSS Frameworks

Tailwind CSS

Web Servers

Apachev2.4.41

SEO Analysis

D58/100

uni-hamburg.deuni-hamburg.de

UHH : Universität Hamburg

Die Universität Hamburg ist mit mehr als 42.000 Studierenden die größte Forschungs- und Ausbildungseinrichtung Norddeutschlands. Als eine der leistungsstärks...

Description truncated.

Title Length25 chars

Recommended: 50-60 chars

Description Length250 chars

Recommended: 120-160 chars

Issues (0)

6 issues found

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Crawlability

Sitemap

Type: standard

331 URLs

robots.txt

7 rules

Sponsored

Security Score

46%Poor

Interactive

HTTPS

No WAF

83d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

06.02.2026

Valid Until

07.05.2026

Subject Alternative Names (3)

uni-hamburg.dewww.uhh.dewww.uni-hamburg.de

SHA-256 Fingerprint

4E:43:82:C8:74:53:AB:EE:F6:00:A6:4D:FC:AB:F3:69:6F:4C:80:B8...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 0s(max-age=0, private, must-revalidate)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

14116

content-type

text/html; charset=utf-8

date

Thu, 12 Feb 2026 19:12:21 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (3)

mx05.rrz.uni-hamburg.de

mx04.rrz.uni-hamburg.de

mx03.rrz.uni-hamburg.de

Domain Information

uni-hamburg.de

Last Updated

03.04.2019

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

TheSansUHHRegularCaps + TheSansUHHSemiLightCaps

45/100

Readability

/30

30/40

16px · LH --

Hierarchy

/20

18/25

2.38x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

7/20

5 fonts

Heading Font

TheSansUHHRegularCaps

Sans38px

Body Font

TheSansUHHSemiLightCaps

Sans16px

Contrast Ratio

Reading Comfort

~33 CPL

Needs attention

38px

28px

16px

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

✅ Strong hierarchy: Headlines are 2.4x larger than body text.

⚠️ Performance concern: 5 font families may slow page load.

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

⚠️ Cramped layout: 35 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

code.etracker.com(2)assets.rrz.uni-hamburg.de(1)betterweb.uni-hamburg.de(1)etracker.de(1)

Website Identity

Facebook Instagram YouTube Bluesky

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Last analyzed: 12 Feb 2026 at 19:12

Historical Analysis & Change Tracking