CF1760196255297-tsm20251011143905

DNSWHOIS.INFO - class4.de

Search for IP or hostnames:

class4.de checked at 2025-10-11T15:24:15.258Z 859ms 94/94/94 100% R:10

class4.de

NSns6.cmo.de
A2001:4ce0:0:2::2f 🇩🇪 CMO Internet Dienstleistungen
PTRns6.cmo.de
A81.90.33.17🇩🇪 CMO Internet Dienstleistungen
PTRns6.cmo.de
NSns7.cmo.de
A2a07:6d40:1:2::66 🇳🇱 SkyLink Data Center
A185.150.26.66🇳🇱 SkyLink Data Center
MXmx0.rt.cmo.de
A2001:4ce0:0:2::34 🇩🇪 CMO Internet Dienstleistungen
PTRsmtp5.rt.cmo.de
A81.90.33.50🇩🇪 CMO Internet Dienstleistungen
PTRsmtp5.rt.cmo.de
MXmx1.rt.cmo.de
A2001:4ce0:0:2::34 🇩🇪 CMO Internet Dienstleistungen
PTRsmtp5.rt.cmo.de
A81.90.33.50🇩🇪 CMO Internet Dienstleistungen
PTRsmtp5.rt.cmo.de
A81.90.33.57🇩🇪 CMO Internet Dienstleistungen
PTRidefix6.rt.cmo.de

de

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

Up

Starts with same word

Starts similarily

AI analysis

class4.de is a parent of smtp.class4.de and imap.class4.de.

class4.de points to a single IP address: 81.90.33.57.

Other host names such as erbuhb.de, led-shop24.de, mail.stohl.de, nilquader.net and idefix6.rt.cmo.de share IPs with class4.de.

Two name servers ns6.cmo.de and ns7.cmo.de handle the delegation for class4.de.

class4.de shares the same name server setup as other domains, for example gourmetfactory.de, topzelt.de, beocca.de, bausch-kretschmer.de and macmx.de.

class4.de shares name servers with other domains at least partially, for instance schmidgruppe.de.

Host names with two IP numbers:

ns6.cmo.de points to 2001:4ce0:0:2::2f and 81.90.33.17.

ns7.cmo.de points to 2a07:6d40:1:2::66 and 185.150.26.66.

Two mail servers handle class4.de: mx0.rt.cmo.de and mx1.rt.cmo.de.

class4.de shares the same mail server setup as other domains, including spqd.de, whackywit.com, udobenz.de, flatserver-pro.com and gasthof-heuschober.de.

class4.de shares at least partially some mail servers with other domains, for instance vr-bank-ermstal-alb.com, volksbank-ermstal-alb.com, vrbank-ermstal-alb.com, cmo-shop.de and bausch-kretschmer.de.

These mail servers are often used with cluster8.eu.messagelabs.com and cluster8a.eu.messagelabs.com.

Names with two IPs:

mx0.rt.cmo.de points to: 2001:4ce0:0:2::34 and 81.90.33.50.

mx1.rt.cmo.de points to: 2001:4ce0:0:2::34 and 81.90.33.50.

Names pointing to 2001:4ce0:0:2::34: mx0.rt.cmo.de and mx1.rt.cmo.de.

Names pointing to 81.90.33.50: mx0.rt.cmo.de and mx1.rt.cmo.de.

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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CuARtrH CF johedugfp 2025-10-11