indexo.dev

duo.de

.de crawl

First seen 2026-05-09 · Last seen 2026-05-09 · pending HTTP 403 crawled 2026-05-15

US · 104.20.30.250 · AS13335 Cloudflare, Inc.

Reputation 94/100 dmarc monitor-only

cloudflare bot challenge

Registration

Updated
2026-01-15
Name servers
  • lily.ns.cloudflare.com.
  • walt.ns.cloudflare.com.

DNS records live

NS
  • lily.ns.cloudflare.com
  • walt.ns.cloudflare.com
MX
  • 0 duo-de.mail.protection.outlook.com
TXT
  • nrkubv402s52tapulkh1oe4cau
  • MS=ms79204801
  • brevo-code:7adb7d00abfbd431219da074fb6bcd20

Email authentication partial

SPF
v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.sendinblue.com ip4:193.159.246.202 -all
strict (-all)
DMARC
v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com
policy: none (monitoring only)
DKIM
  • mail: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z…
selectors probed

Certificate (current)

WE1
from 2026-05-13 to 2026-08-11
Expires in 84 days

Full certificate history on crt.sh ↗

Linked from (1)