indexo.dev

den.nl

.nl crawl

First seen 2026-06-04 · Last seen 2026-06-04 · ok HTTP/1.1 200 140 ms crawled 2026-06-04

BE · 188.208.37.199 · AS34762 Combell NV

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
DEN | Kennisinstituut cultuur & digitale transformatie
Description
DEN is dé aanjager van digitale transformatie voor cultuur. Wij signaleren trends, ondersteunen innovatie en ontwikkelen kennis om mee aan de slag te gaan.
Language
nl
Generator
SEOmatic
Canonical
https://den.nl/

Open Graph

url
https://den.nl/
title
Kennisinstituut cultuur & digitale transformatie
locale
nl
see also
https://twitter.com/stichtingden
site name
DEN
description
DEN is dé aanjager van digitale transformatie voor cultuur. Wij signaleren trends, ondersteunen innovatie en ontwikkelen kennis om mee aan de slag te gaan.

Technology

Server
nginx
Analytics
  • Google Tag Manager

Third-party hosts loaded (3)

  • cdn-cookieyes.com×1
  • www.google.com×1
  • www.googletagmanager.com×1

Social

Contact

Email
Phone
Address
Prins Willem-Alexanderhof 5, 2595 BE, Den Haag, Zuid Holland, Nederland

DNS records live

NS
  • ns1.argewebhosting.eu
  • ns2.argewebhosting.com
  • ns3.argewebhosting.nl
MX
  • 1 den-nl.mail.protection.outlook.com
TXT
  • mandrill_verify.LcSF58yQZP5LicXfngHxdA
Verified for
  • 1Password
  • Apple
  • Brevo
  • Google
  • Microsoft 365

Email authentication strong

SPF
v=spf1 include:spf.protection.outlook.com ip4:82.95.146.80 ip4:194.165.34.0/24 include:_spf.yourfilter.nl include:spf.brevo.com -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; aspf=s; adkim=s
policy: quarantine
DKIM
Show 6 DKIM selectors
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0r92wfcz2ZziU1lkwg0YiC3GKBwgnIrZzlEPm+GDoq++6LP4olW2aJ4nHcGTAyCroWPcgNd2AzTFdH…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsxcvRdaAWPirE/fQxmEWBtdNBpJvTFmuN/ln0q1gBPVc8QvANLTyh1oIQcbUxhR4SZRym2Y7ZR5Gf2…
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
  • mail: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxzmCFDaVQ42/Vb/BEFiTnh8YNbkQ7LzhrFDDgbU4k2VTPsKnUdjy0hUx1/T2Sm5E+5WT15J7lP6t2V/Y/8…
  • s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6i6+tsJ3ErR08DfNtXz6j+QMf1HphPBNJQnuydW0ZtK7XpeIBbGo8bU9xh+l9prayKTIYgKsKeR0tnhtvi…
selectors probed

Certificate (current)

R12
from 2026-04-14 to 2026-07-13
Expires in 38 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked live page: https://den.nl/

present
  • referrer-policy
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Permissions Policy
Header values
referrer-policy
no-referrer-when-downgrade

Links to (2)

Linked from (1)