CF1763514500525-tsm20251116095642

WWW.RTSAK.COM - b4b-group.de

Search for IP or hostnames:

b4b-group.de checked at 2025-11-19T01:08:20.123Z 2240ms 88/88/88 100% R:11 allDone:true timedOut:false

b4b-group.de

MXb4b-group.de
A138.201.248.141🇩🇪 Hetzner
PTRwww5.webnet-service.de
NSa.domain-dns.de
A2001:4178:3:a357:62:116:159:4 🇩🇪 INTERNETX-AS
PTRa.customer-auth.net
A62.116.159.4🇩🇪 INTERNETX-AS
PTRa.customer-auth.net
NSb.domain-dns.de
A2001:8d8:580:401:217:160:113:37 🇩🇪 IONOS-AS
PTRb.customer-auth.net
A217.160.113.37🇩🇪 IONOS-AS
PTRb.customer-auth.net
NSc.domain-dns.de
A2a01:130:2000:118:89:146:248:4 🇩🇪 INTERNET_AG
PTRc.customer-auth.net
A89.146.248.4🇩🇪 INTERNET_AG
PTRc.customer-auth.net
NSd.domain-dns.de
A2607:f1c0:1800:8091:74:208:254:4 🇺🇸 IONOS-AS
PTRd.customer-auth.net
A74.208.254.4🇺🇸 IONOS-AS
PTRd.customer-auth.net
A138.201.248.141🇩🇪 Hetzner
PTRwww5.webnet-service.de

de

NSa.nic.de
NSf.nic.de
NSz.nic.de
NSl.de.net
NSn.de.net
NSs.de.net

MX for

Starts with same word

Starts similarily

AI analysis

b4b-group.de serves as the mail server for b4b-group.de.

b4b-group.de resolves to a single IP address: 138.201.248.141.

Other host names including mbcircle.com, prussak.net, ninepictures.de, www5.webnet-service.de and mail.docsecure.de share IP numbers with b4b-group.de.

b4b-group.de is delegated to four name servers: a.domain-dns.de, b.domain-dns.de, c.domain-dns.de and d.domain-dns.de.

b4b-group.de at least partially shares name servers with other domains, including kontaktanzeigen-24.com, veranstaltungstechnik-hannover.eu, mypost.de, nordiccatclub.de and vedische-weisheit.de.

Hosts with two IP numbers:

Host a.domain-dns.de points to 2001:4178:3:a357:62:116:159:4 and 62.116.159.4

Host b.domain-dns.de points to 2001:8d8:580:401:217:160:113:37 and 217.160.113.37

Host c.domain-dns.de points to 2a01:130:2000:118:89:146:248:4 and 89.146.248.4

Host d.domain-dns.de points to 2607:f1c0:1800:8091:74:208:254:4 and 74.208.254.4

A single mail server handles b4b-group.de.

b4b-group.de points to a single IP: 138.201.248.141.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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