gerritrietveldcollege.nl

.nl crawl

First seen 2026-06-02 · Last seen 2026-06-03 · ok HTTP/1.1 200 1071 ms crawled 2026-06-03

NL · 62.221.215.67 · AS48635 Your Hosting B.V.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title

Home - Gerrit Rietveld College

Language

nl-NL

Canonical

https://www.gerritrietveldcollege.nl/

Feeds

Open Graph

url: https://www.gerritrietveldcollege.nl/
title: Home - Gerrit Rietveld College
locale: nl_NL
site name: Gerrit Rietveld College

Technology

Server: openresty
CMS: WordPress
jQuery: 3.7.1

Analytics

Google Tag Manager

Third-party hosts loaded (3)

gmpg.org×1
kit.fontawesome.com×1
www.googletagmanager.com×1

Social

Contact

Phone

(030) 271 22 14

DNS records live

NS

ns1.argewebhosting.eu
ns2.argewebhosting.com
ns3.argewebhosting.nl

MX

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

TXT

XWArzSfQLdwexb153SJcZgnFI+f00tj6ZnRB12+L/rm7rZyPWU1cZWDim5VtGNINUaGdFggHvfDaf7dFO0o/3Q==
8YXCGkS4hL9Y+Bqtiv4ZH+5xXuL3K1JrVDLWb30IX00=

Verified for

Microsoft 365

Email authentication strong

SPF

v=spf1 ip4:89.255.17.1 include:spf.protection.outlook.com -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; pct=100; rua=mailto:alert@pcouwillibrord.nl; ruf=mailto:alert@pcouwillibrord.nl; fo=1

policy: quarantine

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0dGXYSfb+bf667HNlYR0BD0oixbCYFgywnyARtqA1M5C6tgEtQyAASvU6gfw8zAJWI3D0J5nIRzizN…

selectors probed

Certificate (current)

R13

from 2026-04-29 to 2026-07-28

Expires in 53 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.gerritrietveldcollege.nl/

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Links to (4)

Linked from (1)

lijstscholen.eu×1