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

fau.de

https://fau.de· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

fau.de

Mobile

Sponsored

Hosting Provider

Friedrich-Alexander-Universitaet Erlangen-Nuernberg

IP Address

131.188.16.212

Server Location

🇩🇪 Erlangen, Germany

ASN

AS680

Organization

Friedrich-Alexander-Universitaet Erlangen-Nuernberg

Server

Apache

Nameservers

ns1.rrze.uni-erlangen.de.tuminfo1.informatik.tu-muenchen.de.dns-3.dfn.de.ns2.rrze.uni-erlangen.de.

Performance

Page Speed

6.4 MB

40 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.1

cms

FAU-Elementalv1.0.0

by TBD - theme author

View Theme

Technology Stack

14 Technologies Detected

Plugins

Rrze Glossary Rrze Elements Blocks Rrze Faq Rrze Faudir Rrze Search Fau Orga Breadcrumb Rrze Legal Rrze Siteimprove Rrze Multilang Rrze Calendar

Libraries

CSS Frameworks

Analytics

Web Servers

SEO Analysis

A+94/100

fau.defau.de

Wissen bewegen | Friedrich-Alexander-Universität

Mit über 275 Studiengängen, exzellenter Forschung und internationalen Kooperationen prägt die FAU Erlangen-Nürnberg Wissenschaft und Gesellschaft.

Title Length48 chars

Recommended: 50-60 chars

Description Length146 chars

Recommended: 120-160 chars

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

277d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

ECDSA (secp384r1) (384 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

19.11.2025

Valid Until

19.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (4)

www.fau.deuni-erlangen.dewww.uni-erlangen.defau.de

SHA-256 Fingerprint

E4:AB:35:8C:C3:B2:7D:DD:37:FB:DB:5C:0E:75:76:BF:08:75:68:AE...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 600s(max-age=600, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

54103

content-type

text/html; charset=UTF-8

date

Sun, 15 Feb 2026 01:45:48 GMT

last-modified

Sun, 15 Feb 2026 01:45:48 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

mx-rz-2.rrze.uni-erlangen.de

mx-rz-3.rrze.uni-erlangen.de

mx-rz-1.rrze.uni-erlangen.de

Domain Information

fau.de

Last Updated

19.02.2018

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Data Protection Officer mentioned

Typography & Readability

Source Sans 3

66/100

Readability

/30

40/40

18px · LH 1.50

Hierarchy

/20

25/25

3.42x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Source Sans 3

Sans62px

Body Font

Source Sans 3

Sans18px

Contrast Ratio

Reading Comfort

~44 CPL

Needs attention

62px

16px

24px

20px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.4x larger than body text.

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

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

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

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

fau.de(10)

Website Identity

Facebook Instagram TikTok Mastodon Threads Bluesky

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Last analyzed: 15 Feb 2026 at 01:46

Historical Analysis & Change Tracking