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test-ipv6.nic.cz checked at 2025-10-06T14:09:04.446Z 563ms 72/72/72 100% R:16

`test-ipv6.nic.cz`

MX	`mail.nic.cz`
		A	2001:1488:800:400::400^{🇨🇿 CZ.NIC, z.s.p.o.}
			PTR	`mail.nic.cz`
		A	217.31.204.67^{🇨🇿 CZ.NIC, z.s.p.o.}
			PTR	`mail.nic.cz`
A	217.31.204.129^{🇨🇿 CZ.NIC, z.s.p.o.}
		PTR	`test-ipv6.nic.cz`

`nic.cz`

	MX	`mail.nic.cz`
	MX	`mx.nic.cz`
	NS	`a.ns.nic.cz`
	NS	`b.ns.nic.cz`
	NS	`d.ns.nic.cz`
	A	2001:1488:0:3::2^{🇨🇿 CZ.NIC, z.s.p.o.}
	A	217.31.205.50^{🇨🇿 CZ.NIC, z.s.p.o.}

rank #17225 globally
rank #35 in the tld
This domain name is the official website of the CZ.NIC, an interest association of legal persons, which runs and develops the Czech national domain .cz. CZ.NIC operates the FRED domain registry system and makes it available as open source for domain registries across the globe. It also provides services like Turris routers for improving internet security and MojeID for online identity management.

PTR for

129.204.31.217.in-addr.arpa

Starts with same word

Starts similarily

AI analysis

test-ipv6.nic.cz resolves to one IP number: 217.31.204.129.

Other host names such as test-ipv6.cz and a.test-ipv6.cz share IP numbers with test-ipv6.nic.cz.

test-ipv6.nic.cz is handled by a single mail server, mail.nic.cz.

test-ipv6.nic.cz shares the same mail server setup as other domains, for instance gw.nic.cz, fred.nic.cz, lists.nic.cz and cctld-managers.org.

test-ipv6.nic.cz shares some mail servers with other domains, at least partially, for instance labs.nic.cz, mojeid.cz, jakfungujedns.cz, csnog.net and turis.cz.

these mail servers are commonly used with the mail servers mx.nic.cz.

mail.nic.cz resolves to two IP numbers: 2001:1488:800:400::400 and 217.31.204.67.

dbq