indexo.dev

guehring.de

.de crawl dns

First seen 2026-04-20 · Last seen 2026-05-15 · ok HTTP 200 811 ms crawled 2026-05-13

DE · 212.97.109.131 · AS24766 GBC GmbH Internet Service Center Ingenieurgesellschaft fuer Systemsoftware und Kommunikation

Reputation 89/100 weak security headers dmarc monitor-only

Registration

Updated
2026-01-21
Name servers
  • ns.gbc.gmbh.
  • ns.gbc.green.
  • ns.gbc.jetzt.
  • ns.gbc.red.
  • ns.gbc.systems.

DNS records live

NS
  • ns.gbc.gmbh
  • ns.gbc.green
  • ns.gbc.jetzt
  • ns.gbc.red
  • ns.gbc.systems
MX
  • 10 mx1.guehring.de
  • 20 mailsecure2.gbc.net
TXT
Show 10 TXT records
  • atlassian-domain-verification=tIdrDxH3TuwUzhC2EFyFDByyMuu/vmGvD/EUHmuoQTX34Ebsa8q6d1acGvCaUc7E
  • brevo-code:d5daed1268ba960b5b95571bc97f3411
  • knowbe4-site-verification=9d0f4df6f13825cf34e369b1b9ed1921
  • MS=ms69101077
  • q092djdltb26toa26linhm94u0
  • atlassian-sending-domain-verification=c8b0d399-8222-4771-b31b-c81ac19f55b4
  • g61qr9ulm0sth2ikeclee2hbqq
  • google-site-verification=7OLKonbIp_4L54w051HXCok2Zbdi57hjP_DFK1R9da0
  • 991ibos8mb9b4h2d88kat97fsq
  • FKiAspXTJGZj+gIztBBzOS9aPthDoQf0iI1x/mk+aghqW4yzTwhC2a1VXGzwUzWI3WdinaabtWE9QcdrnN8akA==

Email authentication partial

SPF
v=spf1 include:spf.guehring.de -all
strict (-all)
DMARC
v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com
policy: none (monitoring only)
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDm2B8YD0WlmZkc1nydLLjZcSFO7NZ9YW0RSsNJ9rO43R/vtj5Wqede+iAGpioS6zBJomI1EUP8J4iO43YXOi…
  • mail: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z…
selectors probed

Certificate (current)

R13
from 2026-04-02 to 2026-07-01
Expires in 43 days

Full certificate history on crt.sh ↗

Linked from (1)