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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bundesverfassungsgericht.de

https://bundesverfassungsgericht.de· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

Sponsored

Hosting Provider

Bundesamt fuer Finanzen

IP Address

80.245.145.73

Server Location

🇩🇪 Troisdorf, Germany

ASN

AS35704

Server

Apache

Nameservers

pns.dtag.de.ns2.itzbund.de.secondary006.dtag.net.ns1.itzbund.de.

Performance

Page Speed

3.2 MB

22 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Bundesamt fuer Finanzen

Technology Stack

3 Technologies Detected

Libraries

jQuery

CSS Frameworks

Tailwind CSS

Web Servers

Apache

SEO Analysis

D52/100

bundesverfassungsgericht.debundesverfassungsgericht.de

Bundesverfassungsgericht - Startseite

Homepage des deutschsprachigen Auftritts

Title Length39 chars

Recommended: 50-60 chars

Description Length40 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (6/6)

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

robots.txt

9 rules

Sitemap reference found

Sponsored

Security Score

81%Very Good

Interactive

HTTPS

No WAF

248d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

Valid From

24.10.2025

Valid Until

24.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (8)

www.bundesverfassungsgericht.dewww.bverfg.debundesverfassungsgericht.dewww.ecli.bverfg.debverfg.dewww.bverfg.bund.deecli.bverfg.debverfg.bund.de

SHA-256 Fingerprint

93:D8:2F:1E:A4:F1:B0:35:83:7D:80:72:4A:6E:6F:5E:0A:91:02:63...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 1 Hours(max-age=3600)

content-language

content-security-policy

default-src 'self' 'sha256-TSvMvR1KhNSMgA0cXCcbJuroB+o1McSEH...

content-type

text/html;charset=utf-8

date

Tue, 17 Feb 2026 23:41:39 GMT

referrer-policy

same-origin

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mx2.bund.de

mx1.bund.de

Domain Information

bundesverfassungsgericht.de

Last Updated

12.06.2024

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

SabonLTPro + AkkoPaneuropean

86/100

Readability

/30

40/40

16px · LH 1.60

Hierarchy

/20

25/25

2.88x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

SabonLTPro

Sans46px

Body Font

AkkoPaneuropean

Sans16px

Contrast Ratio

Reading Comfort

~47 CPL

Optimal (45–75)

46px

42px

16px

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

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.9x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

✅ Optimal line length: ~47 characters per line is comfortable to read.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

11 Resources

Scripts

Styles

Async

Defer

Top Script Sources

bundesverfassungsgericht.de(2)

Sponsored

Last analyzed: 17 Feb 2026 at 23:41

Historical Analysis & Change Tracking