WWW.RTSAK.COM - cz.freebsd.org

Search for IP or hostnames:

cz.freebsd.org checked at 2025-09-26T21:06:58.587Z 903ms 89/89/89 100% R:25

`cz.freebsd.org`

MX	`www.freebsd.cz`
		A	2001:718:1e03:801::6 ^{🇨🇿 CESNET}
			PTR	`www.freebsd.cz`
		A	195.113.15.29^{🇨🇿 CESNET}
NS	`ns.ms.mff.cuni.cz`
		A	195.113.20.71^{🇨🇿 CESNET}
			PTR	`ns.ms.mff.cuni.cz`
MX	`smtp1.ms.mff.cuni.cz`
		A	2001:718:1e03:801::4 ^{🇨🇿 CESNET}
			PTR	`smtp1.ms.mff.cuni.cz`
		A	195.113.20.4^{🇨🇿 CESNET}
			PTR	`smtp1.ms.mff.cuni.cz`
NS	`sns.ms.mff.cuni.cz`
		A	195.113.20.77^{🇨🇿 CESNET}
			PTR	`sns.ms.mff.cuni.cz`
NS	`ns.n.mff.cuni.cz`
		A	2001:718:1e03:e01::2 ^{🇨🇿 CESNET}
			PTR	`ns.n.mff.cuni.cz`
		A	195.113.16.2^{🇨🇿 CESNET}

`freebsd.org`

	NS	`ns3.he.net`
	NS	`ns4.he.net`
	NS	`ns5.he.net`
	MX	`mx1.freebsd.org`
	MX	`mx66.freebsd.org`
	NS	`ns1.freebsd.org`
	NS	`ns2.freebsd.org`
	A	2610:1c1:1:606c::50:15 ^{🇺🇸 NYI}
	A	96.47.72.84^{🇺🇸 NYI}

rank #519 globally
rank #60 in the tld
This domain name represents the official website of the FreeBSD Project, which is an advanced operating system for a variety of platforms. It offers advanced networking, performance, security, and compatibility features, and provides a platform for building and running most Internet, server, and embedded systems. The FreeBSD project is an open-source community effort and its source code is freely available to anyone who wishes to use or contribute to it.

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AI analysis

The delegation for cz.freebsd.org is handled by three name servers: ns.ms.mff.cuni.cz, sns.ms.mff.cuni.cz and ns.n.mff.cuni.cz.

cz.freebsd.org shares name servers with other domains at least partially, for example freebsd.cz, sip.mff.cuni.cz, nase-rotunda.cz, ufal.mff.cuni.cz and 19.113.195.in-addr.arpa.

These name servers are commonly used together with david.ruk.cuni.cz, golias.ruk.cuni.cz, kudykam.ms.mff.cuni.cz and akamas.n.mff.cuni.cz.

Host names with two IP numbers:

ns.n.mff.cuni.cz points to: 2001:718:1e03:e01::2 and 195.113.16.2.

Host names with one IP number:

ns.ms.mff.cuni.cz points to: 195.113.20.71.

sns.ms.mff.cuni.cz points to: 195.113.20.77.

Two mail servers www.freebsd.cz and smtp1.ms.mff.cuni.cz handle cz.freebsd.org.

The mail server setup of cz.freebsd.org is the same as that of other domains, for instance freebsd.cz.

cz.freebsd.org shares mail servers with other domains at least partially; for instance sip.mff.cuni.cz, ns.ms.mff.cuni.cz, dual.ms.mff.cuni.cz, dzungle.ms.mff.cuni.cz and mbox.ms.mff.cuni.cz.

These mail servers are often used alongside smtp2.ms.mff.cuni.cz, smtp.n.mff.cuni.cz, amis.mff.cuni.cz and ns.obluda.cz.

Host names with two IP numbers:

www.freebsd.cz points to 2001:718:1e03:801::6 and 195.113.15.29; smtp1.ms.mff.cuni.cz points to 2001:718:1e03:801::4 and 195.113.20.4.

dbq