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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kanzlei-hasselbach.de

https://kanzlei-hasselbach.de· First analyzed 22 Apr 2026· Updated 22 Apr 2026

Export

Mobile

Sponsored

Hosting Provider

IONOS (1&1)

ionos.com

IP Address

217.160.0.150

Site Location

🇩🇪 Germanyvia phone

Server Location

🇩🇪 Essen, Germany

ASN

AS8560

Organization

Ionos Inf

Server

Apache

Nameservers

ns1033.ui-dns.biz.ns1033.ui-dns.com.ns1033.ui-dns.org.ns1033.ui-dns.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

667 ms10%

Speed Index

867 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

492 KB

73 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.8.5

cms

hasselbach-themeCustom

Technology Stack

16 Technologies Detected

Plugins

Honeypot Smooth Scroll Up Tabs Widget Options Simple Lightbox Email Download Link

Libraries

UI Components

CSS Frameworks

Icon Libraries

Analytics

Tag Managers

Web Servers

SEO Analysis

B75/100

Meta Tags9/15

Content10/12

Headings6/8

Technical24/25

E-E-A-T0/7

Images5/7

Links5/5

URL5/5

Social0/5

Freshness4/4

Mobile4/4

Indexability3/3

kanzlei-hasselbach.dekanzlei-hasselbach.de

Rechtsanwalt für Familienrecht und Arbeitsrecht | Köln - Frankfurt ...

Die Kanzlei Hasselbach mit Büros in Köln, Bonn und Frankfurt am Main bietet kompetente Beratung im Familien- und Arbeitsrecht.

Title truncated.

Title Length94 chars

Recommended: 50-60 chars (~564px / 580px)

Description Length126 chars

Recommended: 120-160 chars

Issues (1)

• Title is too long (94 chars, ~564px). Will be truncated in search results.

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

57/100

Fair

13 10

Sponsored

AI & LLM Readiness

D53/100

Bot Access

20/25

Machine Read.

14/25

Schema Data

7/25

Citation

12/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

data-nosnippet

Machine Readability

llms.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:3%

Words:820

Token eff.:Optimal

Sections/1K:11

Structured Data

8 JSON-LD

WebSiteLocalBusiness×1.1BreadcrumbListSearchAction

Citation Readiness

Opening Summary311w

Descriptive Headingsavg 2.9w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

AI readiness recommendation preview...

Upgrade to view recommendations

Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

73/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

13/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

14/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

2/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 recommendations

•Accessibility recommendation preview...

Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

78/100

50 mg

CO₂e / view

491.6 KB

Page Weight

90%

Cleaner Than

New Visitor

57 mg

Returning (cached)

28 mg

Annual (10K/mo)

6.0 kg

Emission Segments

Data Center

2 mg

Network

15 mg

Device

33 mg

Resource Breakdown

JavaScript

124.1 KB

Images

113.1 KB

CSS

226.4 KB

HTML

28.0 KB

Green Hosting Verified

IONOS SE

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

71%Good

Static / Informational

HTTPS

No WAF

256d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

20.12.2025

Valid Until

03.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.kanzlei-hasselbach.dekanzlei-hasselbach.de

SHA-256 Fingerprint

B8:FC:5B:5E:1D:1A:62:FE:E9:BE:DE:E9:8D:5F:8E:18:A9:80:C7:D9...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Wed, 22 Apr 2026 19:58:00 GMT

last-modified

Wed, 22 Apr 2026 17:59:26 GMT

server

Apache

x-ws-origin

available

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx00.ionos.de

mx01.ionos.de

Domain Information

kanzlei-hasselbach.de

Last Updated

09.08.2018

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

GDPR Indicators

Cookie consent banner detected

CMP: Quantcast Choice

Data Protection Officer mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

86/100

Mobile Friendly34 breakpoints

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Open Sans

WCAG Partial

67/100

Readability

/30

20/30

14px · LH 1.60

Hierarchy

/20

16/20

2x ratio · ✓ H1→H6

WCAG

/25

18/25

2.32:1 min contrast

Performance

/25

13/25

1 font · 5 req

Heading Font

Open Sans

Sans28px

Body Font

Open Sans

Sans14px

Contrast Ratio

2.32:1

5 issues

Reading Comfort

~39 CPL

Narrow lines

28px

25px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 40/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 2.3:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

Buy on MyFontsFluid Type (rem)Flesch 40

Color Palette

8 unique colors

Light

#ffffff

Background· 47.00000000000001%

#b8a49f

Secondary· 9.1%

#e5dddb

Secondary· 7.1%

#6e2021

Accent· 5.7%

#4ea130

Primary· 4.2%

#a67c70

Secondary· 4.2%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

29 Resources

Scripts

Styles

Async

Defer

Top Script Sources

kanzlei-hasselbach.de(14)b.delivery.consentmanager.net(2)cdn.consentmanager.net(2)advoad5.ucs.biz(1)

Website Identity

Kanzlei Hasselbach

LocalBusiness

Die Kanzlei Hasselbach mit Büros in Köln, Bonn und Frankfurt am Main bietet kompetente Beratung im Familien- und Arbeitsrecht.

koeln@kanzlei-hasselbach.de

+4922178968550

www.kanzlei-hasselbach.de/

Hohenstaufenring 44-46, Köln

50674, Köln

Location detected: 🇩🇪 Germanyvia phone

Social Profiles

Facebook Instagram YouTube

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Last analyzed: 22 Apr 2026 at 19:58

Historical Analysis & Change Tracking