indexo.dev

noordhoff.nl

.nl crawl

First seen 2026-05-27 · Last seen 2026-05-30 · ok HTTP/1.1 200 597 ms crawled 2026-05-30

NL · 104.40.147.216 · AS8075 Microsoft Corporation

Reputation 100/100

Classifying

HTML metadata

Title
Noordhoff - Brengt je verder
Description
Dé partner in leren voor het basisonderwijs, voortgezet onderwijs, mbo en hoger onderwijs. Ontdek ons complete aanbod van methodes en (digitaal) lesmateriaal.
Language
nl
Canonical
https://www.noordhoff.nl
Translations
  • nl

Open Graph

title
Noordhoff - Brengt je verder
description
Dé partner in leren voor het basisonderwijs, voortgezet onderwijs, mbo en hoger onderwijs. Ontdek ons complete aanbod van methodes en (digitaal) lesmateriaal.

Technology

CDN
Cloudflare
CMS
Next.js
JS framework
Next.js
Cookie consent
  • Usercentrics

Third-party hosts loaded (2)

  • images.ctfassets.net×2
  • app.usercentrics.eu×1

Social

Contact

Phone

DNS records live

NS
  • ns-1341.awsdns-39.org
  • ns-1678.awsdns-17.co.uk
  • ns-55.awsdns-06.com
  • ns-837.awsdns-40.net
MX
  • 0 noordhoff-nl.mail.protection.outlook.com
TXT
Show 8 TXT records
  • ca3-9b1227f3d5134508bb47029c90848f55
  • pp+s81eyGzDPfjIMZnIE/6eF5e8u5Z8HB2aWuTTLtLEluwcvdGhHMbfwOh9SHeiOsUSruhZ1u3J4XvB9oCVkRw==
  • status-page-domain-verification=gscypn921txq
  • E7Y0ft7q1GyZswIbFzMDZ6hEjmnNj7rZX6ldLUHZY+19CI7of5w1KemXfgu2c14uSISKfvEEmfUWheaMKAXL6A==
  • have-i-been-pwned-verification=dweb_wcb5aqtkzlgffdfsor7fe1lv
  • knowbe4-site-verification=699711b3d86e0fd0e7e438bc2510819f
  • mixpanel-domain-verify=ed62dd49-d265-480c-bb74-88bd66841797
  • have-i-been-pwned-verification=dweb_d8kn5y2yqfe4fnytl25ikj30
Verified for
  • Adobe
  • Google
  • Meta
  • Microsoft 365
  • Miro
  • Notion
  • Stripe
  • Zoom

Email authentication strong

SPF
v=spf1 include:spf1.noordhoff.nl include:spf2.noordhoff.nl include:spf3.noordhoff.nl include:spf4.noordhoff.nl include:spf5.noordhoff.nl include:spf6.noordhoff.nl include:spf7.noordhoff.nl include:spf8.noordhoff.nl -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:pnijenhuis@infinitaslearning.com; ruf=mailto:pnijenhuis@infinitaslearning.com; fo=1
policy: quarantine
DKIM
Show 4 DKIM selectors
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCT+cBfZa2WHJdjgZKYOoc+VrVtX0WrCuxyJ/fFlbS3b7DDvdhVhZ2NRM/ogP0AkV8PJOV8coFIwB9Us5bWB/…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAulqasOKimsvQoQL7oPd6Q/sHfx5fwbDQfhwYJMJUAFo/0nTAl5ijH9Bq1mQmglkTbmRItjHsyP0Vtz…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArvrLm/7Br6K96cKkR1Fvk2qGr3fspJdyAVVs2x7XgNYfPGonIPx5o3HUqpDVVP9bx7kfGCb076U5Q2ixDk…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCufMI4axzUShqbjKP/5MsVjq0sk7NhUoEIJRdxl5sqPFB8Bs7yeSGaIngdNWMMWUGKr0ECQfgcCw0e/foMHiA/lx…
selectors probed

Certificate (current)

GeoTrust TLS RSA CA G1
from 2026-02-26 to 2026-08-27
Expires in 87 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://www.noordhoff.nl/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • cross-origin-opener-policy
findings
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
sameorigin
content-security-policy
frame-ancestors 'self' https://app.contentful.com
strict-transport-security
max-age=63072000; includeSubDomains; preload
cross-origin-opener-policy
same-origin

Links to (10)

Linked from (2)