nlnetlabs.nl

.nl crawl dns

First seen 2026-05-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 8755 ms crawled 2026-05-18

DE · 128.140.76.106 · AS24940 Hetzner Online GmbH

Reputation 69/100 listed in spam blocklist dmarc monitor-only

Classifying

HTML metadata

Title

NLnet Labs - Home

Description

Research & Development, Internet architecture, DNS, Routing, Stability and Security.

Language

Feeds

NLnet Labs Atom Feed Atom
NLnet Labs RSS Feed RSS

Open Graph

url: https://nlnetlabs.nl/
title: NLnet Labs
site name: NLnet Labs
description: Research & Development, Internet architecture, DNS, Routing, Stability and Security.

Technology

Server: nginx
CMS: Gatsby

Fonts

Adobe Fonts
Font Awesome

Third-party hosts loaded (2)

use.fontawesome.com×2
use.typekit.net×1

Social

Contact

Email

labs@nlnetlabs.nl

Address

Stichting NLnet LabsScience Park 400, 1098 XH Amsterdam, The Netherlands

Registration

Registrar

Prolocation B.V.

Created

2000-01-18

Updated

2024-08-23

Name servers

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

DNS records live

NS

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

MX

10 mxext1.mailbox.org
10 mxext2.mailbox.org
20 mxext3.mailbox.org

TXT

Stichting NLnet Labs zone

Verified for

1Password

Email authentication partial

SPF

v=spf1 +a include:_spf.google.com include:mailbox.org ip4:185.49.140.0/22 ip6:2a04:b900::/29 ~all

softfail (~all)

DMARC

v=DMARC1; p=none; sp=none; psd=n; rua=mailto:dmarc-feedback@nlnetlabs.nl

policy: none (monitoring only) · sp=none

DKIM

default: v=DKIM1; g=*; k=rsa; t=y;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDOBxkIlNsk1fVhUO8fZs6qJV6/ZFEsltVIuTHDUn1dQXOSqo04SCOXiuRgsFzxKKAOqZKksjEdx…
google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAhfvuanQm2kCz1VQ9gSR4yfap9BonWGMMo56dnGVCfySlaNVqMumJTferAsSn5HnlciPA6LJ46i28kX…

selectors probed

Certificate (current)

from 2026-03-23 to 2026-06-21

Expires in 32 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://nlnetlabs.nl/

present

strict-transport-security
x-frame-options
x-content-type-options

findings

missing Content Security Policy
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
strict-transport-security: max-age=31536000