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hbz-nrw.de

https://hbz-nrw.de· First analyzed 30 Apr 2026· Updated 30 Apr 2026
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hbz-nrw.de
Desktop screenshot of hbz-nrw.de
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Mobile

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Hosting Provider

Hochschulbibliothekszentrum des Landes Nordrhein-Westfalen

IP Address

193.30.112.15

Site Location

🇩🇪 Germanyvia phone

Server Location

🇩🇪 Cologne, Germany

ASN

AS680

Organization

Hochschulbibliothekszentrum des Landes Nordrhein-Westfalen

Server

Apache

Nameservers

nse04.hbz-nrw.de.nse03.hbz-nrw.de.dns1.uni-koeln.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
430 ms10%
Speed Index
559 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
851 KB
33 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Hybrid
⚡ SSG
Frontend
Framework
Gatsbyv5.12.10
Infrastructure
Hosting
Hochschulbibliothekszentrum des Landes Nordrhein-Westfalen

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

3 Technologies Detected

Meta Frameworks

1
Gatsby

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Apache

SEO Analysis

C66/100
21
4
1
Meta Tags14/15
Content3/12
Headings8/8
Technical19/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
H
hbz-nrw.dehbz-nrw.de

Hochschulbibliothekszentrum des Landes Nordrhein-Westfalen

Entdecken Sie die vielfältigen Services, die das hbz zu bieten hat, und die vielen Informationen dazu!

Title Length58 chars

Recommended: 50-60 chars (~352px / 580px)

Description Length102 chars

Recommended: 120-160 chars

Issues (1)

  • • Very thin content (0 words). Search engines need substantial content for ranking.

5 issues found

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Crawlability

Sitemap

Type: standard

90 URLs

robots.txt

4 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

12/100
Poor
4 11 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

F29/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
2/25

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:1,141
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headings
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...
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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.
C
65/100
8
Passed
5
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
3/20
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
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
64/100
B
105 mg
CO₂e / view
850.8 KB
Page Weight
80%
Cleaner Than
New Visitor
120 mg
vs
Returning (cached)
60 mg
Annual (10K/mo)
12.6 kg
Emission Segments
Data Center
24 mg
Network
25 mg
Device
57 mg
Resource Breakdown
JavaScript
179.5 KB
Images
227.5 KB
CSS
187.4 KB
HTML
55.2 KB
Other
201.1 KB
Green Hosting Not Verified
Hochschulbibliothekszentrum des Landes Nordrhein-Westfalen
2 recommendations
  • •Carbon footprint recommendation preview...
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B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

113d

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

HTTP Protocol

HTTP/1.1

Valid From

21.08.2025

Valid Until

21.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (10)

hbz-nrw.dedb.hbz-nrw.depreview.hbz-nrw.depreview-test.hbz-nrw.dewww.hbz-nrw.detest.hbz-nrw.derelaunch.hbz-nrw.decms.hbz-nrw.de+2 more

SHA-256 Fingerprint

D4:62:38:DE:2D:FD:B3:7B:4F:F2:35:20:B3:2B:E7:9D:03:37:24:88...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-type
text/html
date
Thu, 30 Apr 2026 03:52:05 GMT
etag
"771af-65082885d04e0-gzip"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (3)

mx02.hbz-nrw.de
mx03.hbz-nrw.de
mx01.hbz-nrw.de

Domain Information

hbz-nrw.de

Last Updated

17.11.2021

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

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.
C
66/100
Mobile Friendly243 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, shrink-to-fit=no
2 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Wix Madefor Text SemiBold + Wix Madefor Text Regular

WCAG AA
79/100
Readability
/30
22/30

18px · LH 1.60

Hierarchy
/20
20/20

2.5x ratio · ✓ H1→H6

WCAG
/25
17/25

6.53:1 min contrast

Performance
/25
20/25

2 fonts · 2 req

Heading Font

Wix Madefor Text SemiBold

Sans45px

Body Font

Wix Madefor Text Regular

Sans18px

Contrast Ratio

6.53:1

WCAG AA (≥4.5:1)

Reading Comfort

~32 CPL

Narrow lines
45px
h1
37px
h2
26px
h3
18px
p

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

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

❌ Very complex text: Flesch score 3/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.5:1).

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

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

Buy on MyFontsFlesch 3

Color Palette

10 unique colors
20.03:1 AAA Light
#ffffff
Background· 16.099999999999998%
#080808
Text· 14.8%
#0000c0
Primary· 24.3%
#0100a3
Accent· 12%
#171724
Secondary· 7.2%
#b3a6a3
Secondary· 6.9%
#66637d
Secondary· 5.2%
#302f42
Secondary· 4.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

3 Resources

3
Scripts
0
Styles
3
Async
0
Defer

Top Script Sources

local(3)

Website Identity

hbz-nrw.de

[email protected]
+49 221 400 75-0
Location detected: 🇩🇪 Germanyvia phone
de-DE

Social Profiles

GitHub

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Last analyzed: 30 Apr 2026 at 03:52

Historical Analysis & Change Tracking