indexo.dev

rfr-holding.com

.com crawl

First seen 2026-05-14 · Last seen 2026-05-14 · ok HTTP 200 3871 ms crawled 2026-05-19

DE · 217.160.0.76 · AS8560 IONOS SE

Reputation 87/100 weak security headers no dmarc policy

Registration

Registrar
IONOS SE
Created
2006-06-28
Expires
2026-06-28 37 days left
Updated
2025-06-29
Name servers
  • ns1103.ui-dns.biz
  • ns1103.ui-dns.com
  • ns1103.ui-dns.de
  • ns1103.ui-dns.org

DNS records live

NS
  • ns1103.ui-dns.biz
  • ns1103.ui-dns.com
  • ns1103.ui-dns.de
  • ns1103.ui-dns.org
MX
  • 0 rfrholding-com0i.mail.protection.outlook.com
TXT
  • v=verifydomain MS=8466302
  • EIedkVNNWO6tQ2R4FOPabxWf3paGnw9pVCpbsdMPXjEMHEwnF7fWMEMBhhZ3xi/8lqVt/Bbi30B16QUNCXm3Xg==

Email authentication weak

SPF
v=spf1 a mx include:spf.protection.outlook.com include:spf.emailsignatures365.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2025-09-11 to 2026-09-26
Expires in 127 days

Full certificate history on crt.sh ↗

Linked from (1)