offtopic.cz - dns.ninja

`offtopic.cz`

DNSSEC	🔒 Signed (DS record present)
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 Glesys 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`
MX	`mail.gransy.com` ⭐
		A	2001:1528:137::f1^{🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network}
			PTR	`mail.gransy.com`
		A	82.208.29.194^{🇨🇿 CASABLANCA-AS82.208.28.0/23 Casablanca INT}
			PTR	`mail.gransy.cz`
		A	185.28.193.5^{🇨🇿 GRANSY185.28.193.0/24 Network of Gransy s.r.o.}
			PTR	`mail.gransy.cz`
		A	185.28.193.11^{🇨🇿 GRANSY185.28.193.0/24 Network of Gransy s.r.o.}
			PTR	`mail.gransy.cz`
		A	185.28.193.23^{🇨🇿 GRANSY185.28.193.0/24 Network of Gransy s.r.o.}
			PTR	`mail.gransy.cz`
		A	185.28.193.36^{🇨🇿 GRANSY185.28.193.0/24 Network of Gransy s.r.o.}
			PTR	`mail.gransy.cz`
		A	185.28.193.37^{🇨🇿 GRANSY185.28.193.0/24 Network of Gransy s.r.o.}
			PTR	`mail.gransy.cz`
TXT	`v=spf1 a mx include:gransy.com`
SOA	`ns.gransy.com`root@gransy.com serial=2783501367

`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=1785802641

Subdomains

post.offtopic.cz

Same first word

offtopic.co.uk

offtopic.com

offtopic.es

offtopic.ca

offtopic.at

offtopic.hu

offtopic.cc

offtopic.tv

offtopic.online

offtopic.ch

offtopic.ru

offtopic.cz

offtopic.eu

offtopic.in

offtopic.com.ua

offtopic.nu

offtopic.ir

offtopic.de

offtopic.org

offtopic.su

offtopic.it

Similar names

topoffic.eu

DNS History

7 records (6 active, 1 former)

●NSns.gransy.com2015-08-03 → 2026-08-04 · 2 obs

● 2015-08-03 18:02:14
● 2026-08-04 00:31:00

●NSns2.gransy.com2015-08-03 → 2026-08-04 · 2 obs

● 2015-08-03 18:02:14
● 2026-08-04 00:31:00

●NSns3.gransy.com2015-08-03 → 2026-08-04 · 2 obs

● 2015-08-03 18:02:14
● 2026-08-04 00:31:00

●NSns4.gransy.com2015-08-03 → 2026-08-04 · 2 obs

● 2015-08-03 18:02:14
● 2026-08-04 00:31:00

●NSns5.gransy.com2015-08-03 → 2026-08-04 · 2 obs

● 2015-08-03 18:02:14
● 2026-08-04 00:31:00

●MXmail.gransy.com2026-03-14 → 2026-08-04 · 3 obs

○ 2017-05-21 00:41:34
● 2026-03-14 11:41:50
● 2026-08-04 00:31:00

○MXpost.offtopic.cz2015-08-03 → 2017-05-21 · 4 obs

● 2015-08-03 18:02:14
● 2017-05-21 00:41:34
○ 2026-03-14 11:41:50
○ 2026-08-04 00:31:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	8 records
offtopic.cz	ns.gransy.com, ns2.gransy.com, ns3.gransy.com, ns4.gransy.com...	-

✅ Authoritative Response

Server:46.21.100.103

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 2330ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	5	`ns3.gransy.com, ns.gransy.com...`
MX	1	`mail.gransy.com (pri: 10)`
TXT	1	`v=spf1 a mx include:gransy.com`
SOA	1	`ns.gransy.com root.gransy.com`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz...)

Analysis

Hierarchy

offtopic.cz is the parent zone for post.offtopic.cz.

Name Servers

offtopic.cz has five name servers, which are ns2.gransy.com, ns3.gransy.com, ns4.gransy.com and two others.

offtopic.cz partially shares its NS delegation with several other domains, including daramis.com, screenshield.com, activenet.email and two others.

It is common to find these name servers alongside the name servers ns.gransy.com, ns5.gransy.com, ns2.internetserver.cz and two others.

Hostnames pointing to five IP numbers:

ns2.gransy.com resolves to four IP addresses: 95.179.192.121, 217.16.185.221, 217.69.4.49 and two others.

ns3.gransy.com resolves to four IP addresses: 46.21.100.103, 77.78.126.35, 109.74.7.71 and two others.

Hosts that point to four IP numbers:

ns4.gransy.com maps to the following IP addresses: 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 maps to the following IP addresses: 45.76.90.43, 77.78.104.149, 95.179.136.180 and 2001:19f0:5001:1caf:5400:1ff:fec5:8d50.

Hostnames that resolve to two IP addresses:

ns5.gransy.com maps to two IP addresses — 31.192.227.223 and 2a02:750:5::538.

Mail Servers

Mail for offtopic.cz is handled by a single mail server, mail.gransy.com.

offtopic.cz uses an identical mail server configuration to several other domains — among them bandazzaludka.sk, fotbalkyfas.cz, graphicworld.cz and two more.

offtopic.cz has at least partial mail server overlap with other domains such as nej-ceny.cz, autocadltbg.com, sudokucup.com and two more.

This set of mail servers commonly appears together with the mail servers mail2.gransy.com.

mail.gransy.com resolves to 7 IP addresses — 82.208.29.194, 185.28.193.5, 185.28.193.11 and 4 others.