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

fraunhofer.de

https://fraunhofer.de· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

fraunhofer.de

Mobile

Sponsored

Hosting Provider

FHG NET XXX

IP Address

192.102.162.236

Server Location

🇩🇪 Berlin, Germany

ASN

AS680

Organization

FHG NET XXX

Server

Apache

Nameservers

ns5.fraunhofer.de.ns2.fraunhofer.de.ns1.fraunhofer.de.ns3.fraunhofer.de.

Performance

Page Speed

6.3 MB

45 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Adobe Experience Manager

Technology Stack

4 Technologies Detected

Libraries

UI Components

CSS Frameworks

Web Servers

SEO Analysis

B74/100

fraunhofer.defraunhofer.de

Startseite Fraunhofer-Gesellschaft

Die Fraunhofer-Gesellschaft mit Sitz in Deutschland ist eine der führenden Organisationen für anwendungsorientierte Forschung mit Forschungsschwerpunkten in ...

Description truncated.

Title Length34 chars

Recommended: 50-60 chars

Description Length258 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Sponsored

Security Score

71%Good

Interactive

HTTPS

No WAF

252d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

137

content-encoding

📦 Gzip(gzip)

content-length

18363

content-security-policy

frame-ancestors 'none'

content-type

text/html;charset=utf-8

Good Warning Issue

Typography & Readability

FrutigerLTW02

53/100

Readability

/30

32/40

22px · LH 1.22

Hierarchy

/20

8/25

0.67x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

FrutigerLTW02

Sans14px

Body Font

FrutigerLTW02

Sans22px

Contrast Ratio

Reading Comfort

~126 CPL

Needs attention

14px

43px

29px

22px

Perfect Fifth

Scale

✅ Excellent readability: 22px body text is ideal for all devices.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

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

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

❌ Very long lines: ~126 chars/line causes eye strain. Use max-width: 65ch.

⚠️ Cramped layout: 67 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

16 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(14)c.leadlab.click(1)

Sponsored

Last analyzed: 11 Feb 2026 at 09:28

Historical Analysis & Change Tracking