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vhl.nl

.nl ok HTTP/1.1 200 136 ms

First seen 2026-06-17 · Last seen 2026-06-17 · crawled 2026-06-17

NL · 141.138.168.128 · AS20847 Previder B.V.

Reputation 100/100

sector education subsector school type homepage

HTML metadata

Title
Visser 't Hooft Lyceum – Scholengemeenschap voor mavo, havo, atheneum, gymnasium en tto in Leiden, Leiderdorp en Rijnsburg.
Language
nl-NL
Generator
WP Rocket 3.21.3
Feeds
dormant last post 2474 days ago

Contact

Technology

Server
Apache
CMS
WordPress
jQuery
3.3.1 known XSS (<3.5)
Analytics
  • Google Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (4)

  • fonts.googleapis.com×4
  • www.googletagmanager.com×2
  • fonts.gstatic.com×1
  • www.google-analytics.com×1

Registration

Registrar
Antagonist B.V.
Created
1998-09-25
Updated
2025-11-02
Name servers
  • webhostingserver.g1-dns.com
  • webhostingserver.g1-dns.one

DNS records live

NS
  • webhostingserver.g1-dns.com
  • webhostingserver.g1-dns.one
MX
  • 0 vhl-nl.mail.protection.outlook.com
TXT
  • 1uMrdDS2R3bVPEEgscLWa0I6zfzyVx3VKDGPVVThOyM=
Verified for
  • Canva
  • Microsoft 365

Email authentication strong

SPF
v=spf1 ip4:141.138.168.128 include:spf.protection.outlook.com ip4:145.102.41.143 ip4:81.21.184.98 ip4:81.21.176.90 ip4:193.33.215.178 ip4:185.184.188.79 a:mailrelay.wis.nl -all
strict (-all)
DMARC
v=DMARC1;p=quarantine; rua=mailto:postmaster@vhl.nl; ruf=mailto:postmaster@vhl.nl
policy: quarantine
DKIM
no key found at common selectors

Certificate (current)

YR2
from 2026-06-17 to 2026-09-15
Expires in 86 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • missing Content Security Policy
Header values
referrer-policy
no-referrer-when-downgrade
x-frame-options
SAMEORIGIN
permissions-policy
accelerometer=(self), autoplay=(self), camera=(self), encrypted-media=(self), fullscreen=(self), gyroscope=(self), magnetometer=(self), microphone=(self), midi=(self), payment=(self), picture-in-picture=(self)
x-content-type-options
nosniff
strict-transport-security
max-age=31536000; includeSubDomains

Links to (5)

Linked from (1)

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