itsolution.cz - dns.ninja

`itsolution.cz`

DNSSEC	🔒 Signed (DS record present)
A	2a00:4b40:aaaa:2005::7^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
A	37.9.175.163^{🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24}
NS	`ns1.websupport.cz` ⭐
		A	2a10:bbc0::11^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns1.websupport.eu`
		A	45.10.97.11^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns1.websupport.eu`
NS	`ns2.websupport.cz`
		A	2a02:250:3::12^{🇸🇪 ACTIVE24-AS2a02:250:3::/48}
			PTR	`ns2.websupport.eu`
		A	185.71.159.12^{🇸🇪 ACTIVE24-AS185.71.159.0/24}
			PTR	`ns2.websupport.eu`
NS	`ns3.websupport.eu`
		A	2a10:bbc0::13^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns3.websupport.eu`
		A	45.10.97.13^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns3.websupport.eu`
MX	`mailin1.itsolution.cz` ⭐
		A	2a00:4b40:aaaa:2101:45:13:137:104^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
			PTR	`mx20.websupport.cz`
		A	45.13.137.112^{🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24}
			PTR	`m1-u5-mx.websupport.hu`
MX	`mailin2.itsolution.cz`⁽¹⁰⁰⁾
		A	2a00:4b40:aaaa:2101:45:13:137:109^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
			PTR	`mx20.websupport.sk`
		A	45.13.137.103^{🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24}
			PTR	`m1-u5-mx.websupport.cz`
SOA	`ns1.websupport.cz`admin@websupport.cz serial=1719267704

`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=1785224841

Subdomains

mailin1.itsolution.cz

mailin2.itsolution.cz

Same first word

Similar names

DNS History

16 records (7 active, 9 former)

○NSalfa.ns.active24.cz2015-07-25 → 2017-08-27 · 4 obs

● 2015-07-25 11:45:22
● 2017-08-27 19:56:04
○ 2026-03-13 00:02:52
○ 2026-07-28 09:06:30

○NSbeta.ns.active24.cz2015-07-25 → 2017-08-27 · 4 obs

● 2015-07-25 11:45:22
● 2017-08-27 19:56:04
○ 2026-03-13 00:02:52
○ 2026-07-28 09:06:30

○NSgama.ns.active24.sk2015-07-25 → 2017-08-27 · 4 obs

● 2015-07-25 11:45:22
● 2017-08-27 19:56:04
○ 2026-03-13 00:02:52
○ 2026-07-28 09:06:30

●NSns1.websupport.cz2026-03-13 → 2026-07-28 · 3 obs

○ 2017-08-27 19:56:04
● 2026-03-13 00:02:52
● 2026-07-28 09:06:30

●NSns2.websupport.cz2026-03-13 → 2026-07-28 · 3 obs

○ 2017-08-27 19:56:04
● 2026-03-13 00:02:52
● 2026-07-28 09:06:30

●NSns3.websupport.eu2026-03-13 → 2026-07-28 · 3 obs

○ 2017-08-27 19:56:04
● 2026-03-13 00:02:52
● 2026-07-28 09:06:30

○MXin.smtp.cz2015-07-25 → 2016-11-25 · 4 obs

● 2015-07-25 11:45:22
● 2016-11-25 07:24:00
○ 2017-08-27 19:56:04
○ 2026-07-28 09:06:30

●MXmailin1.itsolution.cz2026-03-13 → 2026-07-28 · 3 obs

○ 2017-08-27 19:56:04
● 2026-03-13 00:02:52
● 2026-07-28 09:06:30

●MXmailin2.itsolution.cz2026-03-13 → 2026-07-28 · 3 obs

○ 2017-08-27 19:56:04
● 2026-03-13 00:02:52
● 2026-07-28 09:06:30

○MXmx.smtp.cz2015-07-25 → 2016-11-25 · 4 obs

● 2015-07-25 11:45:22
● 2016-11-25 07:24:00
○ 2017-08-27 19:56:04
○ 2026-07-28 09:06:30

○MXmx1.active24.com2017-08-27 → 2017-08-27 · 4 obs

○ 2016-11-25 07:24:00
● 2017-08-27 19:56:04
○ 2026-03-13 00:02:52
○ 2026-07-28 09:06:30

○MXmx2.active24.com2017-08-27 → 2017-08-27 · 4 obs

○ 2016-11-25 07:24:00
● 2017-08-27 19:56:04
○ 2026-03-13 00:02:52
○ 2026-07-28 09:06:30

●A2a00:4b40:aaaa:2005::72026-03-13 → 2026-07-28 · 3 obs

○ 2017-08-27 19:56:04
● 2026-03-13 00:02:52
● 2026-07-28 09:06:30

○A2a02:4a8:ac24:102::96:942015-07-25 → 2017-08-27 · 4 obs

● 2015-07-25 11:45:22
● 2017-08-27 19:56:04
○ 2026-03-13 00:02:52
○ 2026-07-28 09:06:30

●A37.9.175.1632026-03-13 → 2026-07-28 · 3 obs

○ 2017-08-27 19:56:04
● 2026-03-13 00:02:52
● 2026-07-28 09:06:30

○A81.95.96.942015-07-25 → 2017-08-27 · 4 obs

● 2015-07-25 11:45:22
● 2017-08-27 19:56:04
○ 2026-03-13 00:02:52
○ 2026-07-28 09:06:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	c.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz	8 records
itsolution.cz	ns3.websupport.eu, ns1.websupport.cz, ns2.websupport.cz	-

✅ Authoritative Response

Server:185.71.159.12

NS records: ns3.websupport.eu, ns1.websupport.cz, ns2.websupport.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 4864ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`37.9.175.163`
AAAA	1	`2a00:4b40:aaaa:2005::7`
NS	3	`ns1.websupport.cz, ns2.websupport.cz...`
MX	2	`mailin1.itsolution.cz (pri: 10), mailin2.itsolution.cz (pri: 100)`
SOA	1	`ns1.websupport.cz admin.websupport.cz`

📌 Glue Records Collected

Total: 8

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

Analysis

Hierarchy

itsolution.cz serves as the parent of mailin1.itsolution.cz and mailin2.itsolution.cz.

IP Addresses

itsolution.cz directs to two IP numbers, 37.9.175.163 and 2a00:4b40:aaaa:2005::7

iserver.distep.cz, czrobotics.com, ns.freeproduction.cz plus two other host names have IP numbers in common with itsolution.cz.

Name Servers

itsolution.cz carries NS records delegating to ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.

itsolution.cz partially shares its NS delegation with several other domains, including ronovnd.cz, vilaeden.cz, skanbeton.cz and two others.

ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu are three hostnames that each resolve to a pair of IP addresses: ns1.websupport.cz to 45.10.97.11 and 2a10:bbc0::11, ns2.websupport.cz to 185.71.159.12 and 2a02:250:3::12, and ns3.websupport.eu to 45.10.97.13 and 2a10:bbc0::13.

Mail Servers

itsolution.cz uses two mail servers, mailin1.itsolution.cz and mailin2.itsolution.cz.

mailin1.itsolution.cz and mailin2.itsolution.cz both carry two IP addresses. The A records for mailin1.itsolution.cz are 45.13.137.112 and 2a00:4b40:aaaa:2101:45:13:137:104; the A records for mailin2.itsolution.cz are 45.13.137.103 and 2a00:4b40:aaaa:2101:45:13:137:109.