`ctrnactka.cz`

DNSSEC	⚠️ Not signed
A	46.28.106.76^{🇨🇿 WEDOS46.28.104.0/21 Internet, a.s.}
		PTR	`hc1-wd326.wedos.net`
NS	`ns1.ignum.com` ⭐
		A	2a00:1e40:a:53::5^{🇸🇰 IGNUM-AS2a00:1e40:a::/48}
			PTR	`ns1-bra.core.webglobe.com`
		A	185.65.223.35^{🇸🇰 IGNUM-AS185.65.223.0/24}
			PTR	`ns1-bra.core.webglobe.com`
NS	`ns2.ignum.cz`
		A	2001:1ab0:7e1e:2::5^{🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`ns2-prg.core.webglobe.com`
		A	217.31.48.201^{🇨🇿 IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`ip-217-31-48-201.defastlink.net`
MX	`aspmx.l.google.com` ⭐
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:4025:402::1a^{🇳🇱 Google2a00:1450:4025::/48}
			PTR	`rb-in-f26.1e100.net`
		A	142.250.102.26^{🇺🇸 Google142.250.102.0/24}
			PTR	`rb-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4023:3003::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yulnkjt-in-f27.1e100.net`
		A	172.253.135.26^{🇺🇸 Google172.253.135.0/24}
			PTR	`yudfwta-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c00::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`ws-in-f26.1e100.net`
			PTR	`ws-in-x1a.1e100.net`
		A	173.194.76.26^{🇺🇸 Google173.194.76.0/24}
			PTR	`ws-in-f26.1e100.net`
SOA	`ns1.ignum.com`hostmaster@ignum.cz 2022-11-22 #1

`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=1776235655

Subdomains

www.ctrnactka.cz

wabluska.ctrnactka.cz

Same first word

ctrnactka.cz

ctrnactka.net

DNS History

11 records (8 active, 3 former)

●NSns1.ignum.com2015-07-08 → 2026-04-15 · 2 obs

● 2015-07-08 09:48:24
● 2026-04-15 07:03:04

●NSns2.ignum.cz2015-07-08 → 2026-04-15 · 2 obs

● 2015-07-08 09:48:24
● 2026-04-15 07:03:04

●MXalt1.aspmx.l.google.com2026-02-22 → 2026-04-15 · 3 obs

○ 2017-03-20 15:20:20
● 2026-02-22 21:42:46
● 2026-04-15 07:03:04

●MXalt2.aspmx.l.google.com2026-02-22 → 2026-04-15 · 3 obs

○ 2017-03-20 15:20:20
● 2026-02-22 21:42:46
● 2026-04-15 07:03:04

●MXalt3.aspmx.l.google.com2026-02-22 → 2026-04-15 · 3 obs

○ 2017-03-20 15:20:20
● 2026-02-22 21:42:46
● 2026-04-15 07:03:04

●MXalt4.aspmx.l.google.com2026-02-22 → 2026-04-15 · 3 obs

○ 2017-03-20 15:20:20
● 2026-02-22 21:42:46
● 2026-04-15 07:03:04

●MXaspmx.l.google.com2026-02-22 → 2026-04-15 · 3 obs

○ 2017-03-20 15:20:20
● 2026-02-22 21:42:46
● 2026-04-15 07:03:04

○MXmail.ctrnactka.cz2015-07-08 → 2017-03-20 · 4 obs

● 2015-07-08 09:48:24
● 2017-03-20 15:20:20
○ 2026-02-22 21:42:46
○ 2026-04-15 07:03:04

○MXmail2.ignum.cz2015-07-08 → 2017-03-20 · 4 obs

● 2015-07-08 09:48:24
● 2017-03-20 15:20:20
○ 2026-02-22 21:42:46
○ 2026-04-15 07:03:04

●A46.28.106.762026-02-22 → 2026-04-15 · 3 obs

○ 2017-03-20 15:20:20
● 2026-02-22 21:42:46
● 2026-04-15 07:03:04

○A54.77.35.732015-07-08 → 2017-03-20 · 4 obs

● 2015-07-08 09:48:24
● 2017-03-20 15:20:20
○ 2026-02-22 21:42:46
○ 2026-04-15 07:03:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	d.ns.nic.cz, c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz	-
ctrnactka.cz	ns1.ignum.com, ns2.ignum.cz	2 records

✅ Authoritative Response

Server:217.31.48.201

NS records: ns1.ignum.com, ns2.ignum.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctrnactka.cz (unsigned zone)

⏱️ Timing

Total: 1467ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`46.28.106.76`
NS	2	`ns2.ignum.cz, ns1.ignum.com`
MX	5	`ALT4.ASPMX.L.GOOGLE.COM (pri: 10), ALT3.ASPMX.L.GOOGLE.COM (pri: 10)...`
SOA	1	`ns1.ignum.com hostmaster.ignum.cz`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.ignum.cz, ns2.ignum.cz)

Analysis

Hierarchy

ctrnactka.cz is parent of www.ctrnactka.cz and wabluska.ctrnactka.cz.

IP Addresses

ctrnactka.cz points to a single IP: 46.28.106.76.

Other host names, for instance pc185029.godula.net, pc185221.godula.net, pc058110.godula.net, pc185123.godula.net and bob.godula.net share IP numbers with ctrnactka.cz.

Name Servers

ctrnactka.cz's delegation is to two name servers ns1.ignum.com and ns2.ignum.cz.

ctrnactka.cz shares the same name server configuration as other domains, such as sotek.name, dvorakvet.cz, bestbonus.sk, arthousehejtmanek.com and geopen.cz.

ctrnactka.cz at least partially shares its name servers with other domains, for instance ak-mb.cz, mlc.cz, grantis.info, kovovyrobapenicka.cz and yoz.cz.