indexo.dev

johandewittscholengroep.nl

.nl crawl

First seen 2026-06-02 · Last seen 2026-06-02 · ok HTTP/1.1 200 1126 ms crawled 2026-06-02

BE · 5.134.7.197 · AS34762 Combell NV

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Johan de Witt scholengroep
Description
De Johan de Witt Scholengroep is een school in de binnenstad van Den Haag voor vwo, havo, mavo, vmbo kader, vmbo basis, praktijkonderwijs, entree, ISK en heeft een kopklas.
Language
nl-nl
Generator
Joomla! - Open Source Content Management
Translations
  • ar
  • bg
  • en
  • es
  • nl
  • pl
  • ru
  • tr
  • uk
  • zh

Technology

Server
nginx
CMS
Joomla

Social

DNS records live

NS
  • ns3.firstfind.nl
  • ns4.firstfind.nl
  • ns5.firstfind.net
MX
  • 1 johandewittscholengroep-nl.mail.protection.outlook.com
TXT
  • 9OmKhn5oS54/gaBKcZcd5mitZYtChRl1gqeq8Jg6rRY=
  • hKOWSEqqK0SKdUEM2sU174OR0VbXveqFmN5pj/B9AIdRi2r1I7IfgfpLZItiooCNWM7HvOePhJg7K27QGxmEPg==
Verified for
  • Google
  • Microsoft 365

Email authentication strong

SPF
v=spf1 ip4:185.181.140.137 include:spf.protection.outlook.com include:_spf.zivver.com include:spf.topdesk.net -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; aspf=r; adkim=r; ruf=mailto:systeembeheer@johandewittscholengroep.nl; rua=mailto:systeembeheer@johandewittscholengroep.nl,mailto:laposta.info@dmarc.report.eprov.eu;
policy: quarantine
DKIM
Show 4 DKIM selectors
  • default: v=DKIM1; g=*; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwG8XrFTh9WwryPse0vC82V3mlVESEds5YBABoI54pj/ca0E4v4/jmluptdTSiYjTqU1vJ6OHu…
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCyCVp/1pSAXFVx2QOPKjGSFufsTuUzj7xp45NkvCJGh/mXlE77NFZuTEDBqYVLF6V2mXUNwvG7Yk/9GF2FXR…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuv4SiekZQKSvtVNOaL7NudWY+31f1sEMx4Mih1v+KV/0kOdW72daUNCTpzK0c3lJVO9JAc7sxjvQ6E…
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
selectors probed

Certificate (current)

R12
from 2026-05-13 to 2026-08-11
Expires in 69 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.johandewittscholengroep.nl/

present
  • x-content-type-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff

Links to (5)

Linked from (1)