fh-flensburg.de

.de dns

First seen 2026-05-07 · Last seen 2026-05-19 · pending crawled 2026-05-19 2 attempts

DE · 193.175.191.141 · AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.

Reputation 67/100 wrong cert no dmarc policy

ssl error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'fh-flensburg.de'. (_ssl.c:1000)

Registration

Updated

2017-10-13

Name servers

dns1.fh-flensburg.de.
dns-2.dfn.de.
dns2.fh-flensburg.de.

DNS records live

NS

dns-2.dfn.de
dns1.fh-flensburg.de
dns2.fh-flensburg.de

MX

10 iron1-mail.hs-flensburg.de
20 iron2-mail.hs-flensburg.de

TXT

MS=1291E9C3E558CE8DCF0B2E169B09862D56828E84

Email authentication weak

SPF: v=spf1 mx a:fhf3.fh-flensburg.de a:mail.fh-flensburg.de a:mail.stud.fh-flensburg.de ~all
softfail (~all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current) wrong cert

GEANT TLS RSA 1

from 2025-11-27 to 2026-11-27

Expires in 191 days

Full certificate history on crt.sh ↗