indexo.dev

rfh-koeln.de

.de crawl

First seen 2026-04-16 · Last seen 2026-05-15 · ok HTTP 200 803 ms crawled 2026-05-11

DE · 78.46.0.152 · AS24940 Hetzner Online GmbH

Reputation 92/100 no dmarc policy

Registration

Updated
2025-06-26
Name servers
  • ans1.rh-koeln.de.
  • ans2.rh-koeln.de.
  • deneb.dfn.de.

DNS records live

NS
  • ans1.rh-koeln.de
  • ans2.rh-koeln.de
  • deneb.dfn.de
MX
  • 10 a1851.mx.srv.dfn.de
  • 10 b1851.mx.srv.dfn.de
  • 10 c1851.mx.srv.dfn.de
TXT
Show 7 TXT records
  • "v=spf1 include:spf.protection.outlook.com ip4:195.37.22.5 a:mx01.verwaltung.rfh-koeln.de a:mx02.verwaltung.rfh-koeln.de a:edumail01.rfh-koeln.de a:edumail02.rfh-koeln.de a:edumail.rfh-koeln.de a:mailbox01.rfh-koeln.de a:mailbox02.rfh-koeln.de a:mail.rfh-koeln.de a:mailbox.rfh-koeln.de" " ip4:195.37.23.198 ~all"
  • google-site-verification=ni3nAMWfVxG23Rv2yzJrHzdwcLHiAdQpyKE_T4OTs24
  • HARICA-78ex4DgIKnPsTlqExLa
  • facebook-domain-verification=j1q4yizayhuibejcv4n3m52tyvf6h6
  • MS=5F015BA84DB1BC7A3AE2C58FF504CDA2A5CDFE6A
  • adobe-idp-site-verification=934e3408e51d196824596d7102a13ee03bbf30c280675e8ba67b8434a918d0ff
  • apple-domain-verification=ZTlaK8DH4LXcXIkA

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-21 to 2026-07-20
Expires in 63 days

Full certificate history on crt.sh ↗

Linked from (4)