`studnice.cz`

DNSSEC	🔒 Signed (DS record present)
A	2a00:19a0:3:74:0:d9c6:748b:1^{🇨🇿 ZONER-AS2a00:19a0::/32 ZONER-IPV6-NET}
		PTR	`entera.zarea.net`
A	217.198.116.139^{🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET}
NS	`ns1.regzone.cz` ⭐
		A	2a00:19a0:3:71:0:d9c6:710a:1^{🇨🇿 ZONER-AS2a00:19a0::/32 ZONER-IPV6-NET}
			PTR	`ns1.regzone.cz`
		A	217.198.113.10^{🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET}
			PTR	`ns1.regzone.cz`
NS	`ns1.regzone.de`
		A	2600:3c02::f03c:91ff:fedb:a6e7^{🇺🇸 AKAMAI-LINODE-AP2600:3c02::/32 Akamai Technologies}
			PTR	`ns1.regzone.de`
		A	23.92.29.43^{🇺🇸 AKAMAI-LINODE-AP23.92.28.0/22 Akamai Technologies}
			PTR	`ns1.regzone.de`
NS	`ns1.regzone.info`
		A	2001:1528:147::10^{🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network}
			PTR	`ns1.regzone.info`
		A	81.0.233.10^{🇨🇿 CASABLANCA-AS81.0.232.0/21 Casablanca INT}
			PTR	`ns1.regzone.info`
MX	`relay.zoner.com` ⭐
		A	217.198.120.100^{🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET}
			PTR	`relay.zoner.com`
MX	`10mx.zoner.com`⁽¹⁰⁾
		A	217.198.120.36^{🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET}
			PTR	`10mx.zoner.com`
MX	`15mx.zoner.com`⁽¹⁵⁾
		A	81.0.233.6^{🇨🇿 CASABLANCA-AS81.0.232.0/21 Casablanca INT}
			PTR	`15mx.zoner.com`
SOA	`ns1.regzone.cz`administrator@czechia.cz 2026-03-21 #6

`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=1776239235

Previously MX for

studnice.cz

Same first word

studnice.com

studnice.cz

Similar names

DNS History

14 records (8 active, 6 former)

○NSdns1.davidovitch.com2015-07-16 → 2016-03-04 · 4 obs

● 2015-07-16 19:35:18
● 2016-03-04 21:39:14
○ 2017-04-06 17:19:14
○ 2026-04-15 07:58:36

○NSdns2.davidovitch.com2015-07-16 → 2016-03-04 · 4 obs

● 2015-07-16 19:35:18
● 2016-03-04 21:39:14
○ 2017-04-06 17:19:14
○ 2026-04-15 07:58:36

●NSns1.regzone.cz2017-04-06 → 2026-04-15 · 3 obs

○ 2016-03-04 21:39:14
● 2017-04-06 17:19:14
● 2026-04-15 07:58:36

●NSns1.regzone.de2017-04-06 → 2026-04-15 · 3 obs

○ 2016-03-04 21:39:14
● 2017-04-06 17:19:14
● 2026-04-15 07:58:36

●NSns1.regzone.info2017-04-06 → 2026-04-15 · 3 obs

○ 2016-03-04 21:39:14
● 2017-04-06 17:19:14
● 2026-04-15 07:58:36

●MX10mx.zoner.com2017-04-06 → 2026-04-15 · 3 obs

○ 2016-03-04 21:39:14
● 2017-04-06 17:19:14
● 2026-04-15 07:58:36

●MX15mx.zoner.com2017-04-06 → 2026-04-15 · 3 obs

○ 2016-03-04 21:39:14
● 2017-04-06 17:19:14
● 2026-04-15 07:58:36

●MXrelay.zoner.com2017-04-06 → 2026-04-15 · 3 obs

○ 2016-03-04 21:39:14
● 2017-04-06 17:19:14
● 2026-04-15 07:58:36

○MXstudnice.cz2015-07-16 → 2016-03-04 · 4 obs

● 2015-07-16 19:35:18
● 2016-03-04 21:39:14
○ 2017-04-06 17:19:14
○ 2026-04-15 07:58:36

●A217.198.116.1392026-04-10 → 2026-04-15 · 3 obs

○ 2017-09-13 18:16:40
● 2026-04-10 17:07:42
● 2026-04-15 07:58:36

○A217.198.122.1092017-04-06 → 2017-09-13 · 5 obs

○ 2016-03-04 21:39:14
● 2017-04-06 17:19:14
● 2017-09-13 18:16:40
○ 2026-04-10 17:07:42
○ 2026-04-15 07:58:36

●A2a00:19a0:3:74:0:d9c6:748b:12026-04-10 → 2026-04-15 · 3 obs

○ 2017-09-13 18:16:40
● 2026-04-10 17:07:42
● 2026-04-15 07:58:36

○A2a00:19a0:3:7a:0:d9c6:7a6d:12017-04-06 → 2017-09-13 · 5 obs

○ 2016-03-04 21:39:14
● 2017-04-06 17:19:14
● 2017-09-13 18:16:40
○ 2026-04-10 17:07:42
○ 2026-04-15 07:58:36

○A86.61.213.582015-07-16 → 2016-03-04 · 4 obs

● 2015-07-16 19:35:18
● 2016-03-04 21:39:14
○ 2017-04-06 17:19:14
○ 2026-04-15 07:58:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, d.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz	-
studnice.cz	ns1.regzone.info, ns1.regzone.de, ns1.regzone.cz	2 records

✅ Authoritative Response

Server:81.0.233.10

NS records: ns1.regzone.info, ns1.regzone.de, ns1.regzone.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1198ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.198.116.139`
AAAA	1	`2a00:19a0:3:74:0:d9c6:748b:1`
NS	3	`ns1.regzone.cz, ns1.regzone.de...`
MX	3	`relay.zoner.com (pri: 1), 10mx.zoner.com (pri: 10)...`
SOA	1	`ns1.regzone.cz administrator.czechia.cz`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.regzone.cz, ns1.regzone.cz)

Analysis

IP Addresses

studnice.cz points to two IP numbers: 2a00:19a0:3:74:0:d9c6:748b:1 and 217.198.116.139.

Other host names, for instance kvalb.cz, penzion-horalka.cz, akinka.cz, veselynakup.cz and kumera.cz share IP numbers with studnice.cz.

Name Servers

The delegation for studnice.cz is handled by three name servers: ns1.regzone.cz, ns1.regzone.de and ns1.regzone.info.

studnice.cz at least partially shares name servers with other domains, for instance inglesina.co.at, pbo.cz, boblig.com, parfema.eu and alasans.es.

Two IP numbers per host:

ns1.regzone.cz points to 2a00:19a0:3:71:0:d9c6:710a:1 and 217.198.113.10.

ns1.regzone.de points to 2600:3c02::f03c:91ff:fedb:a6e7 and 23.92.29.43.

ns1.regzone.info points to 2001:1528:147::10 and 81.0.233.10.

Mail Servers

studnice.cz is handled by three mail servers: 10mx.zoner.com, 15mx.zoner.com and relay.zoner.com.

studnice.cz shares mail servers with other domains at least in part, for instance exteria.at, infit.cz, brabec.biz, otvirak.cz and kabat-secondhand.cz.

Host names with one IP number:

10mx.zoner.com points to 217.198.120.36.

15mx.zoner.com points to 81.0.233.6.

relay.zoner.com points to 217.198.120.100.

studnice.cz - robtex.com

studnice.cz

cz

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`studnice.cz`

`cz`