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nlnet.nl

https://nlnet.nl· First analyzed 28 Apr 2026· Updated 28 Apr 2026
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nlnet.nl
Desktop screenshot of nlnet.nl
Mobile screenshot of nlnet.nl
Mobile

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Hosting Provider

TIG

IP Address

5.255.103.93

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Dronten, Netherlands

ASN

AS60404

Organization

TIG

Server

Nginx

Nameservers

ns5.sidn.nl.anyns.pch.net.ns.nlnetlabs.nl.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
378 ms10%
Speed Index
491 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
308 KB
18 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
TIG

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginxv1.28.0

SEO Analysis

C61/100
16
9
1
Meta Tags7/15
Content12/12
Headings7/8
Technical16/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
N
nlnet.nlnlnet.nl

NLnet; Welcome to NLnet Foundation

No description available for this page.

Title Length34 chars

Recommended: 50-60 chars (~209px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

2,899 URLs

robots.txt

5 rules

Sitemap reference found

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.

Sponsored

AI & LLM Readiness

F38/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
0/25
Citation
8/25

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:20%
Words:606
Token eff.:Optimal
Sections/1K:9.9
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary56w
Descriptive Headingsavg 2.3w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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.
A
83/100
12
Passed
2
Critical
0
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
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
3/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

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.
63/100
A+
38 mg
CO₂e / view
308.0 KB
Page Weight
90%
Cleaner Than
New Visitor
44 mg
vs
Returning (cached)
22 mg
Annual (10K/mo)
4.6 kg
Emission Segments
Data Center
9 mg
Network
9 mg
Device
20 mg
Resource Breakdown
Images
32.4 KB
CSS
271.1 KB
HTML
4.5 KB
Green Hosting Not Verified
TIG
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

81%Very Good
Interactive

HTTPS

No WAF

72d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

11.04.2026

Valid Until

10.07.2026

Subject Alternative Names (1)

nlnet.nl

SHA-256 Fingerprint

41:48:D4:41:98:F0:96:E5:52:89:F0:DF:FC:F2:5B:E8:C0:B2:BF:12...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin
null
content-encoding
⚡ Brotli(br)
content-security-policy
default-src 'self' 'unsafe-inline'; frame-src https://nextcl...
content-type
text/html
date
Tue, 28 Apr 2026 08:26:35 GMT
etag
W/"69ef2ad6-4b72"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

75

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

open.nlnet.nl

Domain Information

nlnet.nl

Domain Age
28y 12m

Created

07.05.1997

Last Updated

23.08.2024

Registrar

Prolocation B.V.

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
60/100
Mobile Friendly
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

poppins + inter

WCAG AA
74/100
Readability
/30
22/30

16px · LH 2.00

Hierarchy
/20
15/20

2.25x ratio

WCAG
/25
22/25

6.39:1 min contrast

Performance
/25
15/25

2 fonts · 3 req

Heading Font

poppins

Sans36px

Body Font

inter

Sans16px

Contrast Ratio

6.39:1

WCAG AA (≥4.5:1)

Reading Comfort

~37 CPL

Narrow lines
36px
h1
30px
h2
26px
h3
16px
p

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

⚠️ Wide line spacing (2.00). 1.4–1.6 is optimal for body text.

❌ Very complex text: Flesch score 28/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.4:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.2x larger than body text.

Buy on MyFontsFlesch 29

Color Palette

6 unique colors
7.06:1 AAA Light
#ffffff
Primary· 82.8%
#59585c
Other· 2.8%
#f0b801
Accent· 6.3%
#d1d5c0
Secondary· 3.7%
#95ab33
Accent· 3.4%
#f5e9c8
Accent· 1%

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

1 Resources

0
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

Website Identity

nlnet.nl

28 years old
Location detected: 🇳🇱 Netherlandsvia tld
Prolocation B.V.en

Social Profiles

Mastodon

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Last analyzed: 28 Apr 2026 at 08:26

Historical Analysis & Change Tracking