indexo.dev

sijthoffmedia.nl

.nl crawl

First seen 2026-05-17 · Last seen 2026-05-30 · ok HTTP 200 17799 ms crawled 2026-05-21

US · 34.73.32.206 · AS396982 Google LLC

Reputation 95/100 weak security headers

Registration

Registrar
Registrar.eu
Created
2017-07-12
Updated
2025-07-04
Name servers
  • dns1.domeinbalie.nl
  • dns0.domeinbalie.nl
  • dns2.domeinbalie.org

DNS records live

NS
  • dns0.domeinbalie.nl
  • dns1.domeinbalie.nl
  • dns2.domeinbalie.org
MX
  • 0 sijthoffmedia-nl.mail.protection.outlook.com
TXT
  • domain-verification=a4abf554c5d14007ac82ed965b359051
Verified for
  • Apple
  • Google
  • Microsoft 365
  • Zoom

Email authentication strong

SPF
v=spf1 include:spf.protection.outlook.com include:_spf.sijthoffmedia_nl._d.easydmarc.pro -all
strict (-all)
DMARC
v=DMARC1;p=quarantine;pct=100;rua=mailto:7626373de7@rua.easydmarc.eu;ruf=mailto:7626373de7@ruf.easydmarc.eu;fo=1;
policy: quarantine
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCjaZ10KyFHaYwPalnmES+7b5Drrcu0DpRJYYNmKJRWdgD28jWVI6zLqLFAOt6Zp5mt+MIRoFAwoyM6Y4wWKu…
selectors probed

Certificate (current)

R12
from 2026-03-16 to 2026-06-14
Expires in 14 days

Full certificate history on crt.sh ↗

Linked from (12)