course-manager.de

.de crawl

First seen 2026-04-15 · Last seen 2026-05-12 · ok HTTP 200 1237 ms crawled 2026-05-10

DE · 91.215.74.154 · AS49609 Intersolute GmbH

Reputation 67/100 wrong cert no dmarc policy

Registration

Updated

2014-03-20

Name servers

ns1.ns-serve.net.
ns2.ns-serve.net.

DNS records live

NS

ns1.ns-serve.net
ns2.ns-serve.net

MX

10 mail.mdc-customers.net

Email authentication weak

SPF: v=spf1 a mx include:_spf.michel-customers.net ~all
softfail (~all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current) wrong cert

R12

from 2026-04-17 to 2026-07-16

Expires in 58 days

Full certificate history on crt.sh ↗

Linked from (9)