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radboudumc.nl

https://radboudumc.nl· First analyzed 26 Apr 2026· Updated 26 Apr 2026
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radboudumc.nl
Desktop screenshot of radboudumc.nl
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Mobile

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Hosting Provider

RadboudUMC

IP Address

131.174.154.118

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Nijmegen, Netherlands

ASN

AS1103

Organization

RadboudUMC

Nameservers

ns1.surfnet.nl.umcdns05.umcn.nl.ns1.zurich.surf.net.

Performance

91

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.2 MB
37 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
RadboudUMC

Technology Stack

5 Technologies Detected

Analytics

3
Google Analytics
Hotjar
Matomo

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

SEO Analysis

C69/100
23
5
1
Meta Tags8/15
Content12/12
Headings8/8
Technical16/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
R
radboudumc.nlradboudumc.nl

Patiëntenzorg - Radboudumc

Het Radboudumc wil voorop lopen in de ontwikkeling van innovatieve, duurzame en betaalbare gezondheidszorg.

Title Length27 chars

Recommended: 50-60 chars (~168px / 580px)

Description Length107 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (18/21) — critical for accessibility and SEO

6 issues found

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Crawlability

Sitemap

Type: standard

32,741 URLs

robots.txt

1795 rules

Local SEO

Local Search Readiness

17/100
Poor
5 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

D41/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
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
navheader/footer
Text ratio:4%
Words:564
Token eff.:Optimal
Sections/1K:19.5
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary211w
Descriptive Headingsavg 2.6w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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
12
Passed
1
Critical
2
Warnings
Images & Alt Text
20/20
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
5/15
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
4/15
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.
46/100
C
150 mg
CO₂e / view
1.2 MB
Page Weight
70%
Cleaner Than
New Visitor
171 mg
vs
Returning (cached)
86 mg
Annual (10K/mo)
18.0 kg
Emission Segments
Data Center
34 mg
Network
36 mg
Device
80 mg
Resource Breakdown
JavaScript
312.0 KB
Images
795.8 KB
CSS
71.4 KB
Fonts
7.9 KB
HTML
24.8 KB
Green Hosting Not Verified
RadboudUMC
5 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

81%Very Good
Interactive

HTTPS

No WAF

275d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

27.01.2026

Valid Until

27.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (9)

radboudumc.nlwww.radboudumc.nlradboudumchealthacademy.nlwww.radboudumchealthacademy.nlumcn.nlwww.umcn.nlpaoheyendael.nlwww.paoheyendael.nl+1 more

SHA-256 Fingerprint

2D:20:10:2A:66:F4:1D:67:71:93:56:8C:65:05:56:74:70:04:BA:35...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-expose-headers
Request-Context
cache-control
🟣 Private(private, s-maxage=0)
content-encoding
📦 Gzip(gzip)
content-length
25095
content-security-policy
connect-src 'self' https://*.cloudfront.net https://*.googl...
content-type
text/html; charset=utf-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

radboudumc-nl.h-v1.mx.microsoft

Domain Information

radboudumc.nl

Domain Age
17y 5m

Created

20.11.2008

Last Updated

16.03.2026

Registrar

SURF B.V.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
Privacy policy page linked
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.
C
66/100
Mobile Friendly1 breakpoint
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

Source Sans 3

WCAG Partial
78/100
Readability
/30
26/30

18px · LH 1.56

Hierarchy
/20
20/20

2.67x ratio · ✓ H1→H6

WCAG
/25
17/25

1:1 min contrast

Performance
/25
15/25

1 font · 2 req

Heading Font

Source Sans 3

Sans48px

Body Font

Source Sans 3

Sans18px

Contrast Ratio

1:1

42 issues

Reading Comfort

~35 CPL

Narrow lines
48px
h1
30px
h2
21px
h3
18px
p

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

✅ Optimal line spacing: 1.56 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 34/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 42 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 2.7x larger than body text.

Buy on MyFontsFlesch 34

Color Palette

7 unique colors
2.82:1 Fail Light
#ffffff
Background· 41.8%
#999a99
Other· 8.4%
#80becd
Primary· 11.6%
#9bb5a8
Secondary· 5.3%
#b4c6c4
Secondary· 4.1%

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

3
Matomo (Piwik)Mid-Market
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

9 Resources

6
Scripts
3
Styles
2
Async
1
Defer

Top Script Sources

cdn.matomo.cloud(1)cdn1.readspeaker.com(1)js.monitor.azure.com(1)radboudumc.matomo.cloud(1)local(1)

Website Identity

radboudumc.nl

0243611111
17 years old
Location detected: 🇳🇱 Netherlandsvia tld
SURF B.V.nl

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Last analyzed: 26 Apr 2026 at 22:21

Historical Analysis & Change Tracking

radboudumc.nl Technology Stack - Built With Tailwind CSS, Google Analytics, Google Tag Manager, Hotjar, Matomo | StackOptic | StackOptic