indexo.dev

lorentzschool.nl

.nl crawl

First seen 2026-06-04 · Last seen 2026-06-05 · ok HTTP/1.1 200 107 ms crawled 2026-06-04

US · 104.18.211.89 · AS13335 Cloudflare, Inc.

Reputation 100/100

sector education type homepage

HTML metadata

Title
Welkom op de Lorentzschool | De Lorentzschool
Description
De Lorentzschool is de grootste openbare basisschool van Leiden gevestigd in een prachtig modern gebouw met een zeer groot schoolplein in de Professorenwijk.
Language
nl-NL

Open Graph

url
https://lorentzschool.nl/
title
Welkom op de Lorentzschool | De Lorentzschool
description
De Lorentzschool is de grootste openbare basisschool van Leiden gevestigd in een prachtig modern gebouw met een zeer groot schoolplein in de Professorenwijk.

Technology

CDN
Cloudflare
CMS
WordPress
jQuery
3.7.1
Analytics
  • Google Tag Manager
Fonts
  • Adobe Fonts
Social widgets
  • Vimeo Embed

Third-party hosts loaded (5)

  • www.googletagmanager.com×2
  • cdn.jsdelivr.net×1
  • cdn.plyr.io×1
  • player.vimeo.com×1
  • use.typekit.net×1

Social

Contact

Email
Phone

DNS records live

NS
  • ns3.firstfind.nl
  • ns4.firstfind.nl
  • ns5.firstfind.net
MX
  • 0 lorentzschool-nl.c-v1.mx.microsoft
TXT
Show 4 TXT records
  • DomainVerification=6GFJ1ELJL15BXCO230ERBZQFOV05HNKL01UTCW885TCZLTX0YICW6WPLIHOKM5K2
  • nintex.5e4ea68abb22350caa6e14cb
  • MRKaoJzEmDrY7rusZ3gxijnSF/4PqJaP3bzk7kZHHK8=
  • pb58tu2dm29ZWkDeMHswSAf46fElGZ09
Verified for
  • Apple
  • Microsoft 365

Email authentication strong

SPF
v=spf1 include:_spf.yourfilter.nl include:spf.protection.outlook.com include:spf.bouwmeestergroep.nl include:servers.mcsv.net include:_spf.zivver.com -all
strict (-all)
DMARC
v=DMARC1; p=reject; pct=100; rua=mailto:dmarc@prooleiden.nl; ruf=mailto:dmarc@prooleiden.nl; fo=1
policy: reject (enforced)
DKIM
  • default: v=DKIM1; g=*; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA65x/brHRExxhPN/vkuJR5OaC+Mm5/le+G/QBuHyafjCH7MLYpNIUKJ+HC0JgAZOY/lm0si4WA…
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQD0DrR9UeT40b78Rm1ac3SSDOR/liGDpLnz+5QoZLCVo1tjV4z6NhMx8+dICDgUWXgBvQT945D+USvFovBvke…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAx0FqV0ch2vVlK1GbeVi01Lm/lTj5n1e8E1SrZflNdOwsPyyGejZBvXYvhTF9JGE3qvv2KmL71ugIYC…
selectors probed

Certificate (current)

WE1
from 2026-06-01 to 2026-08-30
Expires in 81 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://lorentzschool.nl/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=31536000

Links to (27)

Linked from (20)

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