WWW.ROBTEX.COM - portal.cert.dfn.de

Search for IP or hostnames:

portal.cert.dfn.de checked at 2025-10-10T19:43:37.322Z 119ms 87/87/87 100% R:7

`portal.cert.dfn.de`

MX	`mail1.dfn-cert.de`
		A	2001:638:714:2811:5::1^{🇩🇪 DFN Deutsches Forschungsnetz e.V.}
			PTR	`mail1.dfn-cert.de`
		A	193.174.13.200^{🇩🇪 DFN Deutsches Forschungsnetz e.V.}
			PTR	`mail1.dfn-cert.de`
MX	`mail2.dfn-cert.de`
		A	2001:638:714:2811:5::2^{🇩🇪 DFN Deutsches Forschungsnetz e.V.}
			PTR	`mail2.dfn-cert.de`
		A	193.174.13.207^{🇩🇪 DFN Deutsches Forschungsnetz e.V.}
			PTR	`mail2.dfn-cert.de`
A	2001:638:714:2801:4::e^{🇩🇪 DFN Deutsches Forschungsnetz e.V.}
		PTR	`portal.cert.dfn.de`
A	193.174.13.51^{🇩🇪 DFN Deutsches Forschungsnetz e.V.}
		PTR	`portal.cert.dfn.de`

`cert.dfn.de`

	MX	`mail1.dfn-cert.de`
	MX	`mail2.dfn-cert.de`
	NS	`robin.dfn-cert.de`
	NS	`deneb.dfn.de`
	NS	`rzdspc1.informatik.uni-hamburg.de`
	NS	`dns1.rrz.uni-hamburg.de`
	NS	`dns2.rrz.uni-hamburg.de`

PTR for

e.0.0.0.0.0.0.0.0.0.0.0.4.0.0.0.1.0.8.2.4.1.7.0.8.3.6.0.1.0.0.2.ip6.arpa

51.13.174.193.in-addr.arpa

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AI analysis

portal.cert.dfn.de has two IP numbers: 2001:638:714:2801:4::e and 193.174.13.51.

portal.cert.dfn.de is served by two mail servers mail1.dfn-cert.de and mail2.dfn-cert.de.

portal.cert.dfn.de shares the same mail server setup as other domains, for instance info.pca.dfn.de, dfnpca.de, dfn-cert.net, cert.dfn.de and ldap.pca.dfn.de.

portal.cert.dfn.de shares at least some mail servers with other domains, for example carmentes.org, carmentis.org, carmentes.eu, carmentes.de and carmentes.net.

Host names with two IPs:

mail1.dfn-cert.de points to 2001:638:714:2811:5::1 and 193.174.13.200

mail2.dfn-cert.de points to 2001:638:714:2811:5::2 and 193.174.13.207

dbq