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dekennisvannu.nl

https://dekennisvannu.nl· First analyzed 24 May 2026· Updated 24 May 2026
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dekennisvannu.nl
Desktop screenshot of dekennisvannu.nl
Mobile screenshot of dekennisvannu.nl
Mobile

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Hosting Provider

Publieke Omroep Nederland

IP Address

145.58.30.3

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Hilversum, Netherlands

ASN

AS25182

Server

Nginx

CDN

Proxy Cache

Nameservers

ns2.npohosting.eu.ns3.npohosting.nl.ns1.npohosting.nl.

Performance

80

Core Web Vitals

Weight

First Contentful Paint
2.3 s10%
Speed Index
3.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.1 MB
48 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Publieke Omroep Nederland
CDN
Proxy Cache

Technology Stack

4 Technologies Detected

Libraries

1
jQueryv3.7.1

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginx

SEO Analysis

D59/100
17
8
1
Meta Tags8/15
Content8/12
Headings3/8
Technical14/25
E-E-A-T3/7
Images3/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
D
dekennisvannu.nldekennisvannu.nl

NTR - NTR Wetenschap

Publieke omroep met wettelijke taken op het gebied van informatie, educatie, cultuur, jeugd en diversiteit. De NTR maakt speciale programma’s voor alle doelg...

Description truncated.
Title Length20 chars

Recommended: 50-60 chars (~126px / 580px)

Description Length164 chars

Recommended: 120-160 chars

Issues (1)

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

9 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

3 rules

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.
4/25
Schema Data
0/25
Citation
14/25

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:284
Token eff.:Too Short
Sections/1K:70.4
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary66w
Descriptive Headingsavg 3w
Canonical URL
Open Graph2/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...
Upgrade to view recommendations

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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
76/100
11
Passed
4
Critical
1
Warnings
Images & Alt Text
18/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
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
9/15
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.
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.
17/100
F
393 mg
CO₂e / view
3.1 MB
Page Weight
30%
Cleaner Than
New Visitor
450 mg
vs
Returning (cached)
225 mg
Annual (10K/mo)
47.2 kg
Emission Segments
Data Center
88 mg
Network
94 mg
Device
211 mg
Resource Breakdown
JavaScript
90.7 KB
Images
696.7 KB
CSS
2.3 MB
HTML
9.7 KB
Other
21.2 KB
Green Hosting Not Verified
Publieke Omroep Nederland
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

69d

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/1.1

Valid From

03.05.2026

Valid Until

01.08.2026

Subject Alternative Names (1)

ntr.nl

SHA-256 Fingerprint

E4:5D:58:44:15:EB:22:56:8A:C5:C0:C0:66:43:C3:2C:1A:D8:B0:50...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟡 100s(max-age=100, public, s-maxage=100)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=UTF-8
date
Sun, 24 May 2026 22:08:23 GMT
expires
Sun, 24 May 2026 22:10:03 GMT
server
nginx
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

dekennisvannu.nl

Domain Age
16y 4m

Created

21.01.2010

Last Updated

29.12.2025

Registrar

NPO

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
71/100
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, user-scalable=1
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

NTR Speciaal Bold + Source Sans Pro

WCAG Partial
62/100
Readability
/30
20/30

35px · LH 1.30

Hierarchy
/20
7/20
WCAG
/25
17/25

3.06:1 min contrast

Performance
/25
18/25

2 fonts · 4 req

Heading Font

NTR Speciaal Bold

Sans

Body Font

Source Sans Pro

Sans35px

Contrast Ratio

3.06:1

5 issues

Reading Comfort

~43 CPL

Narrow lines
53px
h2
53px
h3
35px
p
Minor Second
Scale

✅ Excellent readability: 35px body text is ideal for all devices.

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 3.1:1).

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

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

✅ Lean font stack: 2 font families keeps load times fast.

Buy on MyFontsFluid Type (rem)Flesch 51

Color Palette

11 unique colors
12.98:1 AAA Dark
#303030
Other· 30.299999999999997%
#fdfdfd
Background· 4.6%
#cd6467
Accent· 12.2%
#7e525a
Secondary· 9.3%
#773b49
Secondary· 7.7%
#0a0514
Primary· 6.7%
#492539
Secondary· 6.2%
#271c32
Secondary· 5.5%

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Scripts & Styles

12 Resources

9
Scripts
3
Styles
1
Async
1
Defer

Top Script Sources

local(4)ccm.npo.nl(1)ajax.googleapis.com(1)npotag.npo-data.nl(1)cdn.npoplayer.nl(1)

Website Identity

dekennisvannu.nl

16 years old
Location detected: 🇳🇱 Netherlandsvia tld
NPOnl

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Last analyzed: 24 May 2026 at 22:08

Historical Analysis & Change Tracking