`squashschool.cz`

DNSSEC	🔒 Signed (DS record present)
A	46.234.105.221^{🇨🇿 SuperNetwork46.234.96.0/19 s.r.o.}
		PTR	`unn-46-234-105-221.superhosting.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 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.palo-alto.cz` ⭐
		A	46.234.105.220^{🇨🇿 SuperNetwork46.234.96.0/19 s.r.o.}
			PTR	`mail.palo-alto.cz`
SOA	`ns.gransy.com`root@gransy.com serial=2783510775

`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=1785633440

Same first word

squashschool.cz

DNS History

14 records (7 active, 7 former)

●NSns.gransy.com2026-02-26 → 2026-08-02 · 3 obs

○ 2017-07-08 16:37:08
● 2026-02-26 08:38:04
● 2026-08-02 01:39:44

○NSns1.regzone.cz2015-05-31 → 2017-07-08 · 4 obs

● 2015-05-31 23:45:00
● 2017-07-08 16:37:08
○ 2026-02-26 08:38:04
○ 2026-08-02 01:39:44

○NSns1.regzone.de2015-05-31 → 2017-07-08 · 4 obs

● 2015-05-31 23:45:00
● 2017-07-08 16:37:08
○ 2026-02-26 08:38:04
○ 2026-08-02 01:39:44

○NSns1.regzone.info2015-05-31 → 2017-07-08 · 4 obs

● 2015-05-31 23:45:00
● 2017-07-08 16:37:08
○ 2026-02-26 08:38:04
○ 2026-08-02 01:39:44

●NSns2.gransy.com2026-02-26 → 2026-08-02 · 3 obs

○ 2017-07-08 16:37:08
● 2026-02-26 08:38:04
● 2026-08-02 01:39:44

●NSns3.gransy.com2026-02-26 → 2026-08-02 · 3 obs

○ 2017-07-08 16:37:08
● 2026-02-26 08:38:04
● 2026-08-02 01:39:44

●NSns4.gransy.com2026-02-26 → 2026-08-02 · 3 obs

○ 2017-07-08 16:37:08
● 2026-02-26 08:38:04
● 2026-08-02 01:39:44

●NSns5.gransy.com2026-02-26 → 2026-08-02 · 3 obs

○ 2017-07-08 16:37:08
● 2026-02-26 08:38:04
● 2026-08-02 01:39:44

○MXbeer.beer.cz2015-05-31 → 2017-07-08 · 4 obs

● 2015-05-31 23:45:00
● 2017-07-08 16:37:08
○ 2026-02-26 08:38:04
○ 2026-08-02 01:39:44

●MXmail.palo-alto.cz2026-02-26 → 2026-08-02 · 3 obs

○ 2017-07-08 16:37:08
● 2026-02-26 08:38:04
● 2026-08-02 01:39:44

○MXsmtp103.logout.cz2015-05-31 → 2017-07-08 · 4 obs

● 2015-05-31 23:45:00
● 2017-07-08 16:37:08
○ 2026-02-26 08:38:04
○ 2026-08-02 01:39:44

○A2001:1528:148::44:262015-05-31 → 2017-07-08 · 4 obs

● 2015-05-31 23:45:00
● 2017-07-08 16:37:08
○ 2026-02-26 08:38:04
○ 2026-08-02 01:39:44

●A46.234.105.2212026-02-26 → 2026-08-02 · 3 obs

○ 2017-07-08 16:37:08
● 2026-02-26 08:38:04
● 2026-08-02 01:39:44

○A82.208.44.262015-05-31 → 2017-07-08 · 4 obs

● 2015-05-31 23:45:00
● 2017-07-08 16:37:08
○ 2026-02-26 08:38:04
○ 2026-08-02 01:39:44

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:31.192.227.223

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: 1241ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`46.234.105.221`
NS	5	`ns5.gransy.com, ns2.gransy.com...`
MX	1	`mail.palo-alto.cz (pri: 10)`
SOA	1	`ns.gransy.com root.gransy.com`

Analysis

IP Addresses

squashschool.cz resolves to one IP address: 46.234.105.221.

www.cafh.cz, zivotni-prostredi.cz, ivokahanek.cz and two other host names share IP numbers with squashschool.cz.

Name Servers

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

The name servers of squashschool.cz overlap at least partially with those of other domains — among them praguejourneys.com, tescoma.international, desafio.me and two more.

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

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 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.

Hostnames that resolve to two IP addresses:

ns5.gransy.com resolves to 31.192.227.223 and 2a02:750:5::538.

Mail Servers

Mail for squashschool.cz is handled by a single mail server, mail.palo-alto.cz.

squashschool.cz uses an identical mail server configuration to several other domains — among them zivotni-prostredi.cz, ivokahanek.cz, fuk.cz and two more.

mail.palo-alto.cz points to one IP number — 46.234.105.220.

squashschool.cz - robtex.com

squashschool.cz

cz

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`squashschool.cz`

`cz`