calvijncollege.nl — domain check, WHOIS, DNS & reputation

HTML metadata

Title: Home - Calvijn College
Language: nl-NL
Canonical: https://www.calvijncollege.nl/

Open Graph

url: https://www.calvijncollege.nl/
title: Home - Calvijn College
locale: nl_NL
site name: Calvijn College

Technology

Server: Apache
CMS: WordPress
jQuery: 3.7.1

Third-party hosts loaded (2)

www.google.com×2
assets.ivydigitalmarketing.nl×1

Social

DNS records live

NS

ns1-02.azure-dns.com
ns2-02.azure-dns.net
ns3-02.azure-dns.org
ns4-02.azure-dns.info

MX

0 calvijncollege-nl.mail.protection.outlook.com

TXT

msfpkey=8j3ibx1k3lq1ylu3ocyvb2x4

Verified for

Microsoft

Email authentication strong

SPF

v=spf1 include:_spf.zivver.com include:spf.protection.outlook.com include:mailplus.nl include:spf.flowmailer.net include:spf.presentis.nl include:spf.afas.online ip4:83.96.214.95/32 ip4:81.21.184.98 ip4:3.255.42.136 a:zensmtp1p.magister.net a:zensmtp2p.magister.net ip4:212.115.198.169 -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; rua=mailto:rua@calvijncollege.nl; ruf=mailto:rua@calvijncollege.nl; fo=0;

policy: quarantine

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA12LTmHaGNboOFBDGeQ0w3Nw8HNFI3Wu5SY5QUjN22+UjcyEp73WAli+Gnf1ZTTKQ5NeIpCMQyV/DRq…
selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAt+C9AcavhjU7K9LOgjwhkhW+8diNGtkRd0himcm8cgO/SCzbHDmxpcY/UhWwg2siZOrSxnTxKDQ3Jv…

selectors probed

Certificate (current)

E7

from 2026-05-21 to 2026-08-19

Expires in 59 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 75/100 Checked live page: https://www.calvijncollege.nl/

present

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

findings

missing Content Security Policy
missing Permissions Policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
strict-transport-security: max-age=63072000; preload

Links to (7)

Linked from (1)

debesteschool.nl×1

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