DNSWHOIS.INFO - ctf.cz

Search for IP or hostnames:

ctf.cz checked at 2025-09-06T13:30:49.026Z 693ms 144/144/144 100% R:29

`ctf.cz`

NS	`ns2.gransy.com`
		A	2001:19f0:6801:474:5400:1ff:fec5:8efb ^{🇫🇷 The Constant Company}
		A	2001:19f0:7401:81e0:5400:1ff:fec5:8ef6 ^{🇬🇧 The Constant Company}
		A	95.179.192.121^{🇬🇧 The Constant Company}
			PTR	`95.179.192.121.vultrusercontent.com`
		A	217.16.185.221^{🇨🇿 VSHosting s.r.o.}
			PTR	`ns2.gransy.com`
		A	217.69.4.49^{🇫🇷 The Constant Company}
			PTR	`217.69.4.49.vultrusercontent.com`
NS	`ns3.gransy.com`
		A	2a02:750:7::2e7 ^{🇸🇪 Portlane}
			PTR	`2a02-750-7--2e7-static.glesys.net`
		A	2a02:750:8::32 ^{🇳🇱 Portlane}
			PTR	`2a02-750-8--32-static.glesys.net`
		A	46.21.100.103^{🇳🇱 Portlane}
			PTR	`46-21-100-103-static.glesys.net`
		A	77.78.126.35^{🇨🇿 Casablanca INT a.s.}
		A	109.74.7.71^{🇸🇪 Portlane}
			PTR	`109-74-7-71-static.glesys.net`
NS	`ns4.gransy.com`
		A	2001:19f0:5401:69b:5400:1ff:fec5:8f3f ^{🇺🇸 The Constant Company}
		A	2a00:1a28:2010:1::89 ^{🇳🇴 Portlane}
			PTR	`2a00-1a28-2010-1--89-static.glesys.net`
		A	66.42.94.136^{🇺🇸 The Constant Company}
			PTR	`66.42.94.136.vultrusercontent.com`
		A	80.67.7.209^{🇳🇴 Portlane}
			PTR	`80-67-7-209-static.glesys.net`
NS	`ns5.gransy.com`
		A	2a02:750:5::538 ^{🇸🇪 Portlane}
			PTR	`2a02-750-5--538-static.glesys.net`
		A	31.192.227.223^{🇸🇪 Portlane}
			PTR	`31-192-227-223-static.glesys.net`
NS	`ns.gransy.com`
		A	2001:19f0:5001:1caf:5400:1ff:fec5:8d50 ^{🇳🇱 The Constant Company}
		A	45.76.90.43^{🇩🇪 The Constant Company}
			PTR	`45.76.90.43.vultrusercontent.com`
		A	77.78.104.149^{🇨🇿 Casablanca INT a.s.}
			PTR	`ns.gransy.com`
		A	95.179.136.180^{🇳🇱 The Constant Company}
			PTR	`95.179.136.180.vultrusercontent.com`
MX	`mx.internetserver.cz`
		A	185.28.193.36^{🇨🇿 Gransy s.r.o. - anycastdns.cz}
			PTR	`mail.gransy.cz`
A	185.28.193.57^{🇨🇿 Gransy s.r.o. - anycastdns.cz}
		PTR	`s04.station.cz`

`cz`

	NS	`a.ns.nic.cz`
	NS	`b.ns.nic.cz`
	NS	`c.ns.nic.cz`
	NS	`d.ns.nic.cz`

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AI analysis

ctf.cz is configured to point to the IP address 185.28.193.57.

The IP numbers for ctf.cz are also shared by other host names such as scully.ufouni.cz, dorg.cz, tosedi.cz, mrazek-zak.cz, and podzemny.cz.

Five name servers, ns2.gransy.com, ns3.gransy.com, ns4.gransy.com, ns5.gransy.com, and ns.gransy.com, are delegated to ctf.cz.

The domain ctf.cz shares name servers, at least in part, with other domains such as jiri.one, geekhosting.cz, krumlov-net.cz, pozicovnahier.sk, and vinnesklipky.com.

ns2.gransy.com points to five IP numbers: 2001:19f0:6801:474:5400:1ff:fec5:8efb, 2001:19f0:7401:81e0:5400:1ff:fec5:8ef6, 95.179.192.121, 217.16.185.221, and 217.69.4.49. ns3.gransy.com points to five IP numbers: 2a02:750:7::2e7, 2a02:750:8::32, 46.21.100.103, 77.78.126.35, and 109.74.7.71. ns4.gransy.com points to four IP numbers: 2001:19f0:5401:69b:5400:1ff:fec5:8f3f, 2a00:1a28:2010:1::89, 66.42.94.136, and 80.67.7.209. ns5.gransy.com points to two IP numbers: 2a02:750:5::538 and 31.192.227.223. ns.gransy.com points to four IP numbers: 2001:19f0:5001:1caf:5400:1ff:fec5:8d50, 45.76.90.43, 77.78.104.149, and 95.179.136.180.

The mail server, mx.internetserver.cz, manages ctf.cz.

The mail server setup of ctf.cz is identical to that of other domains such as jstop.cz, mevald.cz, xxlive.cz, pich.cz, and latitude64-tour.com.

Some mail servers of ctf.cz are partially shared with other domains such as mises.cz, radoxist.com, spaceorigin.com, corgi.cz, and mujiphone.com.

The mail servers mx.mitoncz.com are frequently used in conjunction with these mail servers.

mx.internetserver.cz is configured to point to the IP address 185.28.193.36.

dbq