rb-holding.eu

.eu crawl

First seen 2026-06-01 · Last seen 2026-06-01 · pending HTTP 500 crawled 2026-06-02

DE · 5.44.111.135 · AS8648 dogado GmbH

Reputation 67/100 wrong cert no dmarc policy

http 500

DNS records live

NS

cns1.alfahosting.info
cns2.alfahosting.info
cns3.alfahosting.info

MX

0 rbholding-eu0e.mail.protection.outlook.com

Verified for

Microsoft 365

Email authentication weak

SPF: v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current) wrong cert

Sectigo Public Server Authentication CA DV R36

from 2026-02-09 to 2027-02-21

Expires in 263 days

Full certificate history on crt.sh ↗

Linked from (1)

rauchbau.com×1