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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mein-datenschutzbeauftragter.de

https://mein-datenschutzbeauftragter.de· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

Sponsored

Hosting Provider

IONOS (1&1)

ionos.com

IP Address

217.160.0.21

Server Location

🇩🇪 Essen, Germany

ASN

AS8560

Organization

Ionos Inf

Server

Apache

Nameservers

ns1026.ui-dns.org.ns1026.ui-dns.de.ns1026.ui-dns.biz.ns1026.ui-dns.com.

Performance

Page Speed

1.4 MB

84 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

CMS

WordPress

Infrastructure

Hosting

IONOS (1&1)

Technology Stack

16 Technologies Detected

Plugins

Wordpress Popular Posts

Analytics

UI Components

Slick Carousel Fancybox

Meta Frameworks

Libraries

Other

CSS Frameworks

Icon Libraries

Web Servers

SEO Analysis

A+100/100

mein-datenschutzbeauftragter.demein-datenschutzbeauftragter.de

Herold Unternehmensberatung - Sicher in die digitale Zukunft

Ihr Partner für Risikomanagement, Informationssicherheit, Compliance und Datenschutz ✓ kosteneffizient ✓ deutschlandweit tätig

Title Length60 chars

Recommended: 50-60 chars

Description Length126 chars

Recommended: 120-160 chars

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

300d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

02.12.2025

Valid Until

16.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.hub24.dehub24.de

SHA-256 Fingerprint

50:2F:24:B2:29:32:88:39:B0:83:B7:C7:94:2A:B5:D4:B0:45:09:9B...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🔴 No Cache(max-age=0, no-cache, no-store, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

24095

content-type

text/html; charset=UTF-8

date

Thu, 19 Feb 2026 18:25:44 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx01.ionos.de

mx00.ionos.de

Domain Information

mein-datenschutzbeauftragter.de

Last Updated

13.08.2018

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Legitimate interest basis mentioned

Typography & Readability

Fira Sans + Inter

78/100

Readability

/30

32/40

14px · LH 1.50

Hierarchy

/20

25/25

2.83x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Fira Sans

Sans40px

Body Font

Inter

Sans14px

Contrast Ratio

Reading Comfort

~56 CPL

Optimal (45–75)

40px

23px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.8x 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: ~56 characters per line is comfortable to read.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

hub24.de(18)gut-und-fair-beraten.de(2)

Website Identity

Sponsored

Last analyzed: 19 Feb 2026 at 18:25

Historical Analysis & Change Tracking