indexo.dev

lucasonderwijs.nl

.nl crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 382 ms crawled 2026-05-31

NL · 185.232.250.163 · AS48635 Your Hosting B.V.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Lucas Onderwijs - Het beste onderwijs voor ieder kind.
Description
Als een van de grootste schoolbesturen van Nederland maken we het verschil. Zo bieden we kinderen het best denkbare onderwijs. Lees er meer over.
Language
en-US

Open Graph

locale
nl_NL

Technology

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

Third-party hosts loaded (2)

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

Social

Contact

Phone

DNS records live

NS
  • ns1.argewebhosting.eu
  • ns2.argewebhosting.com
  • ns3.argewebhosting.nl
MX
  • 1 lucasonderwijs-nl.mail.protection.outlook.com
TXT
  • have-i-been-pwned-verification=2f68b2812cdc1d763df631bda566e496
Verified for
  • Adobe
  • Apple
  • Atlassian
  • Google
  • Mailgun

Email authentication partial

SPF
v=spf1 a ip4:145.103.255.30 ip4:162.13.227.144 ip4:168.245.100.0 ip4:80.79.108.80 include:sendgrid.net include:spf.kandidaatzoeker.nl include:spf.protection.outlook.com include:spf.mailjet.com include:mailgun.org -all
strict (-all)
DMARC
v=DMARC1; p=none; rua=mailto:9e06f7d3b026190@rep.dmarcanalyzer.com; sp=none;
policy: none (monitoring only) · sp=none
DKIM
Show 4 DKIM selectors
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv5W4WRCkA8eOJejYBysd63LbzJVYSUujPHy46/EXEK0Apjhnapt5OWkAMuveobAdA8s1A7M+mY3mlJ…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvjCQfF8bIXuzTqq1AcGAn38ZovJTXX7fgnFEzJVgv38Y2UKTbpYNIZqCN7DcNvE7gWQBNBNYqwTUeF…
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
  • s1: k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzyramIcLsAZW+Sa0eW6e+AsVKG3YjPKVC8GrHHoPAoo5c/6YbHGifdCudezntixtG8jiOxVKcuwoGc8d7vyrqWh…
selectors probed

Certificate (current)

R12
from 2026-05-08 to 2026-08-06
Expires in 66 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (4)

Linked from (2)