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uk-essen.de

https://uk-essen.de· First analyzed 04 May 2026· Updated 04 May 2026
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uk-essen.de
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Hosting Provider

Hetzner
hetzner.com

IP Address

157.90.149.137

Site Location

🇩🇪 Germanyvia phone

Server Location

🇩🇪 Falkenstein, Germany

ASN

AS24940

Organization

Hetzner

Server

Nginx

Nameservers

a.xnameserver.de.ns2.uk-essen.de.ns1.uk-essen.de.b.xnameserver.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
661 ms10%
Speed Index
859 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2 MB
70 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
WordPress
Infrastructure
Hosting
Hetzner

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

15 Technologies Detected

Plugins

6
Contact Form 7
Honeypot
Content Hub To Wordpress Plugin
Feed Them SocialEwww Image Optimizer
Yoast SEO

CSS Frameworks

2
Bootstrap
Tailwind CSS

Libraries

1
jQueryv3.7.1

UI Components

1
Lightbox

Other

1
lazysizes

Icon Libraries

1
Font Awesome

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginxv1.18.0

SEO Analysis

A80/100
24
5
1
Meta Tags12/15
Content8/12
Headings8/8
Technical24/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social3/5
Freshness4/4
Mobile3/4
Indexability3/3
U
uk-essen.deuk-essen.de

Startseite | Universitätsklinikum Essen

Das UK Essen ist heute das größte an einem Standort zentrierte Universitätsklinikum des Ruhrgebiets und damit das „Klinikum der Metropole Ruhr“.

Title Length39 chars

Recommended: 50-60 chars (~229px / 580px)

Description Length144 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (82/85) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

4 URLs

4 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

32/100
Needs Work
9 9

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AI & LLM Readiness

F37/100
Bot Access
20/25
Machine Read.
0/25
Schema Data
7/25
Citation
10/25

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:8%
Words:5,152
Token eff.:Excessive

Structured Data

5 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction

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...
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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
77/100
14
Passed
3
Critical
0
Warnings
Images & Alt Text
10/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
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
9/15
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.
54/100
C
204 mg
CO₂e / view
2.0 MB
Page Weight
50%
Cleaner Than
New Visitor
234 mg
vs
Returning (cached)
117 mg
Annual (10K/mo)
24.5 kg
Emission Segments
Data Center
10 mg
Network
60 mg
Device
134 mg
Resource Breakdown
JavaScript
244.7 KB
Images
1.6 MB
CSS
107.2 KB
Fonts
14.3 KB
HTML
56.1 KB
Green Hosting Verified
Hetzner Online GmbH
GWF Verified
5 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

81%Very Good
Interactive

HTTPS

No WAF

203d

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/2

Valid From

24.11.2025

Valid Until

24.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.uk-essen.deuk-essen.de

SHA-256 Fingerprint

61:4A:4F:B9:EE:F9:F3:A6:5A:41:97:E7:33:2A:1D:B7:6E:28:41:2C...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-bypass-reason
NOCACHE
content-encoding
📦 Gzip(gzip)
content-security-policy
default-src 'self' https:; font-src 'self' data:; style-src ...
content-type
text/html; charset=UTF-8
date
Mon, 04 May 2026 23:40:56 GMT
link
<https://www.uk-essen.de/wp-json/>; rel="https://api.w.org/"...
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (4)

mx3.uk-essen.de
mx1.uk-essen.de
mx4.uk-essen.de
mx2.uk-essen.de

Domain Information

uk-essen.de

Last Updated

22.11.2019

DNSSEC
Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner
Quantcast Choice
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Quantcast Choice
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
81/100
Mobile Friendly39 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=1.0, minimum-scale=1.0, maximum-scale=5.0
2 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Open Sans

WCAG Partial
72/100
Readability
/30
24/30

16px · LH 1.50

Hierarchy
/20
17/20

4.62x ratio · ✓ H1→H6

WCAG
/25
13/25

1.04:1 min contrast

Performance
/25
18/25

1 font · 4 req

Heading Font

Open Sans

Sans74px

Body Font

Open Sans

Sans16px

Contrast Ratio

1.04:1

5 issues

Reading Comfort

~35 CPL

Narrow lines
74px
h1
29px
h2
29px
h3
24px
h4
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 10/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 5 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 4.6x larger than body text.

Buy on MyFontsFlesch 10

Color Palette

10 unique colors
11.94:1 AAA Light
#ffffff
Primary· 20.200000000000003%
#363737
Text· 16.4%
#1b3255
Accent· 6%
#b78c6e
Secondary· 3.8%

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

30 Resources

20
Scripts
10
Styles
3
Async
7
Defer

Top Script Sources

uk-essen.de(17)cdn.consentmanager.net(2)a.delivery.consentmanager.net(1)

Website Identity

Universitätsklinikum Essen

Universitätsklinikum Essen

Organization

Das UK Essen ist heute das größte an einem Standort zentrierte Universitätsklinikum des Ruhrgebiets und damit das „Klinikum der Metropole Ruhr“.

[email protected]
+492017230
www.uk-essen.de/
Location detected: 🇩🇪 Germanyvia phone
de

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Last analyzed: 04 May 2026 at 23:41

Historical Analysis & Change Tracking

uk-essen.de Technology Stack - Built With jQuery, Lightbox, lazysizes, Bootstrap, Tailwind CSS | StackOptic | StackOptic