indexo.dev

leerling-volg-systeem.nl

.nl crawl

First seen 2026-05-28 · Last seen 2026-05-28 · ok HTTP/1.1 200 366 ms crawled 2026-05-31

NL · 5.254.124.145 · AS3223 Voxility LLP

Reputation 87/100 weak security headers weak subdomain policy

Classifying

HTML metadata

Title
Leerling Volg Systeem | Bureau ECI
Language
zxx

Technology

Server
nginx
jQuery
1.12.4 known XSS (<3.5)

Social

Contact

Email

DNS records live

NS
  • ns1.mijn.host
  • ns2.mijn.host
  • ns3.mijn.host
MX
  • 10 mail.leerling-volg-systeem.nl

Email authentication strong

SPF
v=spf1 a mx include:spf.mijn.host ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; sp=none;
policy: quarantine · sp=none
DKIM
  • default: v=DKIM1; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtA4NQsthlASXzIfFwokfcFKaWAnpaoudCG7Ls5G+2lBqGw31ajgpJTTtYuduP58C5w7Eb6tlrURhqLYom6sJw…
selectors probed

Certificate (current)

R13
from 2026-04-16 to 2026-07-15
Expires in 45 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://leerling-volg-systeem.nl/

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

Links to (13)

Linked from (1)