indexo.dev

maerlant-lyceum.nl

.nl crawl

First seen 2026-06-02 · Last seen 2026-06-02 · ok HTTP/1.1 200 620 ms crawled 2026-06-02

NL · 109.70.6.56 · AS48635 Your Hosting B.V.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Home | Maerlant-Lyceum
Description
De website van het Maerlant Lyceum! Al ruim 100 jaar de school voor gymnasium, atheneum en havo.
Language
nl-NL
Generator
Bolt
Canonical
https://www.maerlant-lyceum.nl/

Open Graph

url
https://www.maerlant-lyceum.nl/
title
Home | Maerlant-Lyceum
locale
nl_NL
site name
Maerlant-Lyceum
description
De website van het Maerlant Lyceum! Al ruim 100 jaar de school voor gymnasium, atheneum en havo.

Technology

Server
Apache
PHP
7.2.34 end of life
Analytics
  • Google Tag Manager
Fonts
  • Adobe Fonts

Third-party hosts loaded (2)

  • use.typekit.net×1
  • www.googletagmanager.com×1

Social

Contact

Email

DNS records live

NS
  • ns1.argewebhosting.eu
  • ns2.argewebhosting.com
  • ns3.argewebhosting.nl
MX
  • 0 maerlantlyceum-nl02b.mail.protection.outlook.com
Verified for
  • Adobe
  • Google
  • Microsoft 365

Email authentication partial

SPF
v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com include:spf.emailsignatures365.com ip4:81.21.184.98 ip4:81.21.176.90 ip4:194.165.34.0/24 include:_spf.argewebhosting.nl -all
strict (-all)
DMARC
v=DMARC1; p=none; rua=mailto:m365@maerlant-lyceum.nl; ruf=mailto:m365@maerlant-lyceum.nl
policy: none (monitoring only)
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC2J1jnPgsweOGFovMEwE9eJGXffYN/RKaIQYkYsH8Ielrw/pTSr7LeCJSrjSk7JJrzc5dXIebtK9SonFSb2o…
selectors probed

Certificate (current)

R13
from 2026-04-08 to 2026-07-07
Expires in 35 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://maerlant-lyceum.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)