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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bmfsfj.de

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

Export

bmfsfj.de

Sponsored

Hosting Provider

Polidia GmbH

IP Address

185.49.17.236

Server Location

🇩🇪 Berlin, Germany

ASN

AS25516

Organization

Polidia GmbH

Server

Varnish

Nameservers

c.ns14.net.b.ns14.net.d.ns14.net.rzmr1.init.de.

Performance

Page Speed

2.8 MB

66 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Polidia GmbH

Technology Stack

4 Technologies Detected

Libraries

CSS Frameworks

Analytics

Caching

SEO Analysis

C68/100

bmfsfj.debmfsfj.de

Startseite - BMBFSFJ

Hier finden Sie aktuelle Informationen des Bundesministeriums für Bildung, Familie, Senioren, Frauen und Jugend (BMBFSFJ).

Title Length20 chars

Recommended: 50-60 chars

Description Length122 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (59/115)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

71%Good

Interactive

HTTPS

No WAF

139d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Deutsche Telekom Security GmbH

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

02.07.2025

Valid Until

06.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

bmbfsfj.bund.dewww.bmbfsfj.bund.de

SHA-256 Fingerprint

24:85:60:77:09:70:FB:3F:9A:A1:0B:B4:88:E4:D1:F2:A9:CC:86:FB...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-length

19547

date

Tue, 17 Feb 2026 03:26:38 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

rzs01.init.de

rzs02.init.de

Domain Information

bmfsfj.de

Last Updated

17.12.2025

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Data Protection Officer mentioned

Typography & Readability

BundesSerifWeb + BundesSansWeb

86/100

Readability

/30

40/40

18px · LH 1.40

Hierarchy

/20

25/25

2.67x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

BundesSerifWeb

Serif48px

Body Font

BundesSansWeb

Sans18px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

48px

18px

Minor Second

Scale

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

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.7x larger than body text.

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

⚠️ Cramped layout: 107 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

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(2)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube TikTok

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Last analyzed: 17 Feb 2026 at 03:26

Historical Analysis & Change Tracking