indexo.dev

uni-duisburg-essen.de

.de crawl dns

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP 200 6232 ms crawled 2026-05-19

DE · 134.91.197.147 · AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.

Reputation 94/100 dmarc monitor-only

Registration

Updated
2018-06-15
Name servers
  • dns-2.dfn.de.
  • ns1.uni-duisburg-essen.de.
  • ns2.uni-duisburg-essen.de.

DNS records live

NS
  • dns-2.dfn.de
  • ns1.uni-duisburg-essen.de
  • ns2.uni-duisburg-essen.de
MX
  • 10 mx-serv3.uni-due.de
  • 10 mx-serv4.uni-due.de
  • 10 mx-serv5.uni-due.de
Verified for
  • Google
  • Microsoft 365

Email authentication partial

SPF
v=spf1 ip4:132.252.0.0/16 ip4:134.91.0.0/16 ip4:193.30.112.1 ip6:2001:638:501::/48 include:_spf.tivian.com include:_spf.zimpel.de include:spf.server-he.de mx ~all
softfail (~all)
DMARC
v=DMARC1; p=none; sp=none; adkim=r; aspf=r; pct=100; rua=mailto:dmarc@uni-due.de; ruf=mailto:dmarc@uni-due.de; fo=1
policy: none (monitoring only) · sp=none
DKIM
no key found at common selectors

Certificate (current)

GEANT TLS RSA 1
from 2025-11-14 to 2026-11-14
Expires in 177 days

Full certificate history on crt.sh ↗

Linked from (1)