gnu-linux.cz - dns.ninja

`gnu-linux.cz`

DNSSEC	🔒 Signed (DS record present)
A	91.219.244.97^{🇨🇿 ASJABLONKA91.219.244.0/22 JABLONKA route}
		PTR	`czf.frantovo.cz`
NS	`ns2.gransy.com` ⭐
		A	2001:19f0:6801:474:5400:1ff:fec5:8efb^{🇫🇷 AS-VULTR2001:19f0:6800::/38 Vultr Assigned Prefix}
		A	2001:19f0:7401:81e0:5400:1ff:fec5:8ef6^{🇬🇧 AS-VULTR2001:19f0:7400::/38 Vultr Assigned Prefix}
		A	95.179.192.121^{🇬🇧 AS-VULTR95.179.192.0/20 Vultr Assigned Prefix}
			PTR	`95.179.192.121.vultrusercontent.com`
		A	217.16.185.221^{🇨🇿 VSHOSTING217.16.176.0/20 III.}
			PTR	`ns2.gransy.com`
		A	217.69.4.49^{🇫🇷 AS-VULTR217.69.0.0/20 Vultr Assigned Prefix}
			PTR	`217.69.4.49.vultrusercontent.com`
NS	`ns.gransy.com`
		A	2001:19f0:5001:1caf:5400:1ff:fec5:8d50^{🇳🇱 AS-VULTR2001:19f0:5000::/38 Vultr Assigned Prefix}
		A	45.76.90.43^{🇩🇪 AS-VULTR45.76.80.0/20 Vultr Assigned Prefix}
			PTR	`45.76.90.43.vultrusercontent.com`
		A	77.78.104.149^{🇨🇿 CASABLANCA-AS77.78.96.0/20 Casablanca INT}
			PTR	`ns.gransy.com`
		A	95.179.136.180^{🇳🇱 AS-VULTR95.179.128.0/20 Vultr Assigned Prefix}
			PTR	`95.179.136.180.vultrusercontent.com`
NS	`ns3.gransy.com`
		A	2a02:750:7::2e7^{🇸🇪 GLESYS2a02:750::/29}
			PTR	`2a02-750-7--2e7-static.glesys.net`
		A	2a02:750:8::32^{🇳🇱 GLESYS2a02:750:8::/48 GleSYS AB}
			PTR	`2a02-750-8--32-static.glesys.net`
		A	46.21.100.103^{🇳🇱 GLESYS46.21.100.0/24 GleSYS AB}
			PTR	`46-21-100-103-static.glesys.net`
		A	77.78.126.35^{🇨🇿 CASABLANCA-AS77.78.124.0/22 Casablanca INT}
		A	109.74.7.71^{🇸🇪 GLESYS109.74.0.0/20}
			PTR	`109-74-7-71-static.glesys.net`
NS	`ns4.gransy.com`
		A	2001:19f0:5401:69b:5400:1ff:fec5:8f3f^{🇺🇸 AS-VULTR2001:19f0:5400::/38 Vultr Assigned Prefix}
		A	2a00:1a28:2010:1::89^{🇳🇴 GLESYS2a00:1a28::/32 Portlane Network}
			PTR	`2a00-1a28-2010-1--89-static.glesys.net`
		A	66.42.94.136^{🇺🇸 AS-VULTR66.42.80.0/20 Vultr Assigned Prefix}
			PTR	`66.42.94.136.vultrusercontent.com`
		A	80.67.7.209^{🇳🇴 GLESYS80.67.0.0/20 Portlane Network}
			PTR	`80-67-7-209-static.glesys.net`
NS	`ns5.gransy.com`
		A	2a02:750:5::538^{🇸🇪 GLESYS2a02:750::/29}
			PTR	`2a02-750-5--538-static.glesys.net`
		A	31.192.227.223^{🇸🇪 GLESYS31.192.224.0/21}
			PTR	`31-192-227-223-static.glesys.net`
SOA	`ns.gransy.com`root@gransy.com serial=2783282764

`cz`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.ns.nic.cz` ⭐
	NS	`b.ns.nic.cz`
	NS	`c.ns.nic.cz`
	NS	`d.ns.nic.cz`
	SOA	`a.ns.nic.cz`hostmaster@nic.cz serial=1784243837

Same first word

gnu-linux.org

gnu-linux.ro

gnu-linux.pl

gnu-linux.com

gnu-linux.cz

DNS History

21 records (6 active, 15 former)

●NSns.gransy.com2026-03-09 → 2026-07-16 · 3 obs

○ 2016-12-06 23:42:36
● 2026-03-09 02:01:28
● 2026-07-16 23:34:52

○NSns.wedos.com2015-07-07 → 2016-12-06 · 4 obs

● 2015-07-07 11:11:10
● 2016-12-06 23:42:36
○ 2026-03-09 02:01:28
○ 2026-07-16 23:34:52

○NSns.wedos.cz2015-07-07 → 2016-12-06 · 4 obs

● 2015-07-07 11:11:10
● 2016-12-06 23:42:36
○ 2026-03-09 02:01:28
○ 2026-07-16 23:34:52

○NSns.wedos.eu2015-07-07 → 2016-12-06 · 4 obs

● 2015-07-07 11:11:10
● 2016-12-06 23:42:36
○ 2026-03-09 02:01:28
○ 2026-07-16 23:34:52

○NSns.wedos.net2015-07-07 → 2016-12-06 · 4 obs

● 2015-07-07 11:11:10
● 2016-12-06 23:42:36
○ 2026-03-09 02:01:28
○ 2026-07-16 23:34:52

●NSns2.gransy.com2026-03-09 → 2026-07-16 · 3 obs

○ 2016-12-06 23:42:36
● 2026-03-09 02:01:28
● 2026-07-16 23:34:52

●NSns3.gransy.com2026-03-09 → 2026-07-16 · 3 obs

○ 2016-12-06 23:42:36
● 2026-03-09 02:01:28
● 2026-07-16 23:34:52

●NSns4.gransy.com2026-03-09 → 2026-07-16 · 3 obs

○ 2016-12-06 23:42:36
● 2026-03-09 02:01:28
● 2026-07-16 23:34:52

●NSns5.gransy.com2026-03-09 → 2026-07-16 · 3 obs

○ 2016-12-06 23:42:36
● 2026-03-09 02:01:28
● 2026-07-16 23:34:52

○MXalt1.aspmx.l.google.com2015-07-07 → 2016-12-06 · 4 obs

● 2015-07-07 11:11:10
● 2016-12-06 23:42:36
○ 2026-03-09 02:01:28
○ 2026-07-16 23:34:52

○MXalt2.aspmx.l.google.com2015-07-07 → 2016-12-06 · 4 obs

● 2015-07-07 11:11:10
● 2016-12-06 23:42:36
○ 2026-03-09 02:01:28
○ 2026-07-16 23:34:52

○MXaspmx.l.google.com2015-07-07 → 2016-12-06 · 4 obs

● 2015-07-07 11:11:10
● 2016-12-06 23:42:36
○ 2026-03-09 02:01:28
○ 2026-07-16 23:34:52

○MXaspmx2.googlemail.com2015-07-07 → 2016-12-06 · 4 obs

● 2015-07-07 11:11:10
● 2016-12-06 23:42:36
○ 2026-03-09 02:01:28
○ 2026-07-16 23:34:52

○MXaspmx3.googlemail.com2015-07-07 → 2016-12-06 · 4 obs

● 2015-07-07 11:11:10
● 2016-12-06 23:42:36
○ 2026-03-09 02:01:28
○ 2026-07-16 23:34:52

○MXaspmx4.googlemail.com2015-07-07 → 2016-12-06 · 4 obs

● 2015-07-07 11:11:10
● 2016-12-06 23:42:36
○ 2026-03-09 02:01:28
○ 2026-07-16 23:34:52

○MXaspmx5.googlemail.com2015-07-07 → 2016-12-06 · 4 obs

● 2015-07-07 11:11:10
● 2016-12-06 23:42:36
○ 2026-03-09 02:01:28
○ 2026-07-16 23:34:52

○A149.62.147.1992026-03-09 → 2026-05-18 · 5 obs

○ 2016-12-06 23:42:36
● 2026-03-09 02:01:28
● 2026-05-18 07:19:42
○ 2026-06-03 16:52:02
○ 2026-07-16 23:34:52

○A2a01:430:2e::1992026-03-09 → 2026-05-18 · 5 obs

○ 2016-12-06 23:42:36
● 2026-03-09 02:01:28
● 2026-05-18 07:19:42
○ 2026-06-03 16:52:02
○ 2026-07-16 23:34:52

○A2a02:2b88:2:1::3528:12015-07-07 → 2016-12-06 · 4 obs

● 2015-07-07 11:11:10
● 2016-12-06 23:42:36
○ 2026-03-09 02:01:28
○ 2026-07-16 23:34:52

○A31.31.75.2272015-07-07 → 2016-12-06 · 4 obs

● 2015-07-07 11:11:10
● 2016-12-06 23:42:36
○ 2026-03-09 02:01:28
○ 2026-07-16 23:34:52

●A91.219.244.972026-06-03 → 2026-07-16 · 3 obs

○ 2026-05-18 07:19:42
● 2026-06-03 16:52:02
● 2026-07-16 23:34:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
gnu-linux.cz	ns3.gransy.com, ns.gransy.com, ns5.gransy.com, ns2.gransy.com...	-

✅ Authoritative Response

Server:77.78.126.35

NS records: ns3.gransy.com, ns.gransy.com, ns5.gransy.com, ns2.gransy.com, ns4.gransy.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1861ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.219.244.97`
NS	5	`ns5.gransy.com, ns3.gransy.com...`
SOA	1	`ns.gransy.com root.gransy.com`

Analysis

IP Addresses

gnu-linux.cz directs to one IP number, which is 91.219.244.97.

Among the host names that share IP numbers with gnu-linux.cz are gnulinux.cz, frantovo.cz, mao.frantovo.cz and two others.

Name Servers

The authoritative name servers for gnu-linux.cz are ns2.gransy.com, ns3.gransy.com, ns4.gransy.com and two others.

The name servers of gnu-linux.cz overlap at least partially with those of other domains — among them info-prerov.cz, openware.pl, fivo.cz and two more.

These name servers commonly appear alongside the name servers ns.gransy.com and ns5.gransy.com.

Hostnames that point to five IP numbers:

ns2.gransy.com directs to 95.179.192.121, 217.16.185.221, 217.69.4.49 and two other IP addresses.

ns3.gransy.com directs to 46.21.100.103, 77.78.126.35, 109.74.7.71 and two other IP addresses.

Hosts pointing to four IP addresses:

ns4.gransy.com resolves to 66.42.94.136, 80.67.7.209, 2001:19f0:5401:69b:5400:1ff:fec5:8f3f and 2a00:1a28:2010:1::89.

ns.gransy.com resolves to 45.76.90.43, 77.78.104.149, 95.179.136.180 and 2001:19f0:5001:1caf:5400:1ff:fec5:8d50.

Hosts with two IP numbers each:

The A records for ns5.gransy.com return 31.192.227.223 and 2a02:750:5::538.