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zu.de

https://zu.de· First analyzed 14 May 2026· Updated 14 May 2026
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zu.de
Desktop screenshot of zu.de
Mobile screenshot of zu.de
Mobile

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Hosting Provider

Neue Medien Muennich GmbH

IP Address

85.13.136.128

Site Location

🇩🇪 Friedrichshafen, Germanyvia schema_nap

Server Location

🇩🇪 Neusalza-Spremberg, Germany

ASN

AS34788

Organization

Neue Medien Muennich GmbH

Server

Apache

Nameservers

cns1.alfahosting.info.cns3.alfahosting.info.cns2.alfahosting.info.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
482 ms10%
Speed Index
627 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.8 MB
38 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Neue Medien Muennich GmbH

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

6 Technologies Detected

Analytics

3
Google Analytics
Facebook PixelSegment

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

B74/100
23
3
1
Meta Tags15/15
Content3/12
Headings8/8
Technical24/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
Z
zu.dezu.de

Zeppelin Universität | zwischen Wirtschaft, Kultur & Politik

Privat, interdisziplinär & ohne NC studieren: Die Zeppelin Universität in Friedrichshafen am Bodensee. Persönliche Betreuung in kleinen Studiengruppen.

Title Length60 chars

Recommended: 50-60 chars (~351px / 580px)

Description Length151 chars

Recommended: 120-160 chars

Issues (1)

  • • Very thin content (8 words). Search engines need substantial content for ranking.

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

4,650 URLs

robots.txt

24 rules

Sitemap reference found

Local SEO

Local Search Readiness

37/100
Needs Work
10 11 1

Sponsored

AI & LLM Readiness

F30/100
Bot Access
20/25
Machine Read.
1/25
Schema Data
2/25
Citation
7/25

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:3%
Words:3,714
Token eff.:Poor Structure

Structured Data

2 JSON-LD
BreadcrumbList
sameAs entity links

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph3/3
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.
C
64/100
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
6/20
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
1/15
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.
44/100
F
494 mg
CO₂e / view
4.8 MB
Page Weight
15%
Cleaner Than
New Visitor
565 mg
vs
Returning (cached)
283 mg
Annual (10K/mo)
59.3 kg
Emission Segments
Data Center
24 mg
Network
145 mg
Device
325 mg
Resource Breakdown
JavaScript
146.0 KB
Images
224.8 KB
CSS
469.2 KB
Fonts
182.3 KB
HTML
91.3 KB
Other
3.7 MB
Green Hosting Verified
ALL-INKL.COM
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

81%Very Good
Interactive

HTTPS

No WAF

49d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.04.2026

Valid Until

03.07.2026

Subject Alternative Names (2)

www.zu.dezu.de

SHA-256 Fingerprint

2D:48:3E:A3:83:76:39:FC:C5:E6:67:EF:78:EE:86:75:43:8C:6C:EC...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-security-policy
frame-ancestors https://www.zu.de/ https://www.zeppelin-univ...
content-type
text/html; charset=utf-8
date
Thu, 14 May 2026 17:49:29 GMT
expires
Thu, 19 Nov 1981 08:52:00 GMT
Good Warning Issue

Email Infrastructure

Barracuda

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

d334026.a.ess.de.barracudanetworks.com
d334026.b.ess.de.barracudanetworks.com

Domain Information

zu.de

Last Updated

24.10.2018

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
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.
B
72/100
Mobile Friendly382 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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

UniversNextBasic

WCAG Partial
75/100
Readability
/30
22/30

16px · LH 1.50

Hierarchy
/20
19/20

2x ratio · ✓ H1→H6

WCAG
/25
16/25

1:1 min contrast

Performance
/25
18/25

1 font · 5 req

Heading Font

UniversNextBasic

Sans32px

Body Font

UniversNextBasic

Sans16px

Contrast Ratio

1:1

1 issue

Reading Comfort

~40 CPL

Narrow lines
32px
h1
32px
h2
21px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 14/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.0:1).

✅ 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 MyFontsFlesch 14

Color Palette

7 unique colors
4.65:1 AA Light
#ffffff
Primary· 42.7%
#767474
Other· 4.9%

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

5 Resources

4
Scripts
1
Styles
1
Async
1
Defer

Top Script Sources

local(2)download.digiaccess.org(2)

Website Identity

Zeppelin Universität

Zeppelin Universität

CollegeOrUniversity

Am Seemooser Horn 20, Friedrichshafen

88045, Friedrichshafen, Baden-Württemberg

DE

Location detected: 🇩🇪 Germany, Friedrichshafenvia schema_nap
📧 Barracudade

Social Profiles

FacebookInstagram

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Last analyzed: 14 May 2026 at 17:49

Historical Analysis & Change Tracking