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hugendubel.de

https://hugendubel.de· First analyzed 26 Apr 2026· Updated 26 Apr 2026
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hugendubel.de
Desktop screenshot of hugendubel.de
Mobile screenshot of hugendubel.de
Mobile

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Hosting Provider

Paragon Data GmbH

IP Address

195.160.161.80

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Friedrichsdorf, Germany

ASN

AS12360

Organization

Paragon Data GmbH

Server

myracloud

CDN

CDN

Nameservers

ns02.paragon-systems.de.ns01.paragon-systems.de.

Performance

94

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.3 MB
181 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Infrastructure
Hosting
Paragon Data GmbH
CDN
CDN

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

5 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

SEO Analysis

B71/100
19
7
1
Meta Tags15/15
Content10/12
Headings3/8
Technical17/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile3/4
Indexability3/3
H
hugendubel.dehugendubel.de

Hugendubel Online-Shop: Bücher online kaufen | Hugendubel.de

Buchhandlung Hugendubel: Über 15 Mio. Artikel - Bücher versandkostenfrei online bestellen - Lieferung auch in die Filiale

Title Length60 chars

Recommended: 50-60 chars (~355px / 580px)

Description Length121 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

8 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

14 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

6/100
Poor
2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

F38/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
11/25

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

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:2%
Words:2,894
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary424w
Descriptive Headings
Canonical URL
Open Graph2/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
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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.
B
74/100
11
Passed
4
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
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
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
7/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 recommendations
  • •Accessibility recommendation preview...
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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.
43/100
C
170 mg
CO₂e / view
1.3 MB
Page Weight
70%
Cleaner Than
New Visitor
194 mg
vs
Returning (cached)
97 mg
Annual (10K/mo)
20.4 kg
Emission Segments
Data Center
38 mg
Network
41 mg
Device
91 mg
Resource Breakdown
JavaScript
328.5 KB
Images
306.5 KB
CSS
82.0 KB
Fonts
451.8 KB
HTML
70.1 KB
Other
135.8 KB
Green Hosting Not Verified
Paragon Data GmbH
5 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

21%Critical
Interactive

HTTPS

No WAF

43d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

11.03.2026

Valid Until

09.06.2026

Subject Alternative Names (2)

*.hugendubel.dehugendubel.de

SHA-256 Fingerprint

15:88:D1:65:C0:68:2F:89:89:CA:81:EA:B8:EA:41:FF:F7:1C:68:BA...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin
*
cache-control
🟡 300s(max-age=300)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Sun, 26 Apr 2026 19:22:56 GMT
etag
"myra-4d146c03"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.hugendubel.de

Domain Information

hugendubel.de

Last Updated

04.08.2015

DNSSEC
Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner
Usercentrics
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Usercentrics
Privacy policy page linked

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.
A
85/100
Mobile Friendly10 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, minimum-scale=1, maximum-scale=2, user-scalable=yes, shrink-to-fit=no
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

brandon_grotesque + brandon_text

WCAG AA
57/100
Readability
/30
15/30

11px · LH 1.38

Hierarchy
/20
7/20
WCAG
/25
19/25

5.13:1 min contrast

Performance
/25
16/25

2 fonts · 10 req

Heading Font

brandon_grotesque

Sans

Body Font

brandon_text

Sans11px

Contrast Ratio

5.13:1

WCAG AA (≥4.5:1)

Reading Comfort

~57 CPL

Optimal (45–75)
22px
h2
20px
h3
11px
p

❌ Critical: 11px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Tight line spacing (1.38). Increase to 1.4–1.6 for better readability.

✅ Optimal line length: ~57 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 24/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.1:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

Buy on MyFontsFlesch 24

Color Palette

5 unique colors
4.95:1 AA Dark
#707070
Other· 51.50000000000001%
#ffffff
Background· 18%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

25 Resources

20
Scripts
5
Styles
16
Async
3
Defer

Top Script Sources

web.cmp.usercentrics.eu(7)local(4)sdk.tradedoubler.com(2)googletagmanager.com(2)static.trbo.com(1)

Website Identity

hugendubel.de

Location detected: 🇩🇪 Germanyvia tld
de

Social Profiles

FacebookInstagram

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Last analyzed: 26 Apr 2026 at 19:23

Historical Analysis & Change Tracking