hackuj.cz - dns.ninja

`hackuj.cz`

DNSSEC	⚠️ Not signed
A	2001:880:0:15::14e^{🇩🇪 ONE-NETWORK2001:880::/32}
		PTR	`dw345.webglobe.com`
A	185.102.21.149^{🇨🇿 ONE-NETWORK185.102.21.0/24}
NS	`ns1.webglobe.cz` ⭐ ⚠️ Not in parent delegation
		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	`ns.skok.cz` ⚠️ Not in zone NS records
		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.skok.cz` ⚠️ Not in zone NS records
		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	`ns2-prg.core.webglobe.com`
NS	`ns2.webglobe.cz` ⚠️ Not in parent delegation
		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	`ns2-prg.core.webglobe.com`
NS	`ns3.skokcz.eu` ⚠️ Not in zone NS records
		A	2a03:b0c0:1:d0::1090:2001^{🇬🇧 DIGITALOCEAN2a03:b0c0:1::/48 DigitalOcean}
			PTR	`ns3-lon.core.webglobe.com`
		A	178.62.60.201^{🇬🇧 DIGITALOCEAN178.62.0.0/18 DigitalOcean}
			PTR	`ns3-lon.core.webglobe.com`
NS	`ns3.webglobe.com` ⚠️ Not in parent delegation
		A	2a03:b0c0:1:d0::1090:2001^{🇬🇧 DIGITALOCEAN2a03:b0c0:1::/48 DigitalOcean}
			PTR	`ns3-lon.core.webglobe.com`
		A	178.62.60.201^{🇬🇧 DIGITALOCEAN178.62.0.0/18 DigitalOcean}
			PTR	`ns3-lon.core.webglobe.com`
MX	`mx.skok.cz` ⭐
		A	62.109.128.119^{🇨🇿 IGNUM-AS62.109.128.0/19 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`mx-lb.core.webglobe.com`
MX	`mxbackup.skok.cz`⁽²⁰⁾
		A	62.109.128.119^{🇨🇿 IGNUM-AS62.109.128.0/19 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`mx-lb.core.webglobe.com`
SOA	`ns1.webglobe.cz`hostmaster@skok.cz 2026-07-03 #3

`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=1784000839

Subdomains

www.hackuj.cz

Same first word

hackuj.cz

Similar names

hackju.com

jackhu.cn

kujach.net

jukcha.com

hujack.cn

hackju.at

kujach.com

juchka.ru

hujack.com

DNS History

20 records (10 active, 10 former)

●NSns.skok.cz2026-02-17 → 2026-07-14 · 3 obs

○ 2018-05-13 19:53:28
● 2026-02-17 19:38:22
● 2026-07-14 04:11:10

○NSns.snackhost.co.uk2018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 19:53:28
○ 2026-02-17 19:38:22
○ 2026-07-14 04:11:10

○NSns.snackhost.cz2018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 19:53:28
○ 2026-02-17 19:38:22
○ 2026-07-14 04:11:10

○NSns.snackhost.eu2018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 19:53:28
○ 2026-02-17 19:38:22
○ 2026-07-14 04:11:10

●NSns1.webglobe.cz2026-02-17 → 2026-07-14 · 3 obs

○ 2018-05-13 19:53:28
● 2026-02-17 19:38:22
● 2026-07-14 04:11:10

●NSns2.skok.cz2026-02-17 → 2026-07-14 · 3 obs

○ 2018-05-13 19:53:28
● 2026-02-17 19:38:22
● 2026-07-14 04:11:10

●NSns2.webglobe.cz2026-02-17 → 2026-07-14 · 3 obs

○ 2018-05-13 19:53:28
● 2026-02-17 19:38:22
● 2026-07-14 04:11:10

●NSns3.skokcz.eu2026-02-17 → 2026-07-14 · 3 obs

○ 2018-05-13 19:53:28
● 2026-02-17 19:38:22
● 2026-07-14 04:11:10

●NSns3.webglobe.com2026-02-17 → 2026-07-14 · 3 obs

○ 2018-05-13 19:53:28
● 2026-02-17 19:38:22
● 2026-07-14 04:11:10

●MXmx.skok.cz2026-02-17 → 2026-07-14 · 3 obs

○ 2018-05-13 19:53:28
● 2026-02-17 19:38:22
● 2026-07-14 04:11:10

○MXmx.snackhost.co.uk2018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 19:53:28
○ 2026-02-17 19:38:22
○ 2026-07-14 04:11:10

○MXmx.snackhost.cz2018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 19:53:28
○ 2026-02-17 19:38:22
○ 2026-07-14 04:11:10

○MXmx.snackhost.eu2018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 19:53:28
○ 2026-02-17 19:38:22
○ 2026-07-14 04:11:10

●MXmxbackup.skok.cz2026-02-17 → 2026-07-14 · 3 obs

○ 2018-05-13 19:53:28
● 2026-02-17 19:38:22
● 2026-07-14 04:11:10

●A185.102.21.1492026-03-06 → 2026-07-14 · 3 obs

○ 2026-02-27 08:24:50
● 2026-03-06 09:53:32
● 2026-07-14 04:11:10

○A2001:1528:181::76:1702026-02-17 → 2026-02-27 · 5 obs

○ 2018-05-13 19:53:28
● 2026-02-17 19:38:22
● 2026-02-27 08:24:50
○ 2026-03-06 09:53:32
○ 2026-07-14 04:11:10

●A2001:880:0:15::14e2026-03-06 → 2026-07-14 · 3 obs

○ 2026-02-27 08:24:50
● 2026-03-06 09:53:32
● 2026-07-14 04:11:10

○A217.16.190.622018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 19:53:28
○ 2026-02-17 19:38:22
○ 2026-07-14 04:11:10

○A2a00:1ed0:23::622018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 19:53:28
○ 2026-02-17 19:38:22
○ 2026-07-14 04:11:10

○A77.78.76.1702026-02-17 → 2026-02-27 · 5 obs

○ 2018-05-13 19:53:28
● 2026-02-17 19:38:22
● 2026-02-27 08:24:50
○ 2026-03-06 09:53:32
○ 2026-07-14 04:11:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
hackuj.cz	ns.skok.cz, ns2.skok.cz, ns3.skokcz.eu	4 records

✅ Authoritative Response

Server:217.31.48.201

NS records: ns.skok.cz, ns2.skok.cz, ns3.skokcz.eu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hackuj.cz (unsigned zone)

⏱️ Timing

Total: 1282ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.102.21.149`
AAAA	1	`2001:880:0:15::14e`
NS	3	`ns3.webglobe.com, ns2.webglobe.cz...`
MX	2	`mx.skok.cz (pri: 10), mxbackup.skok.cz (pri: 20)`
SOA	1	`ns1.webglobe.cz hostmaster.skok.cz`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns.skok.cz, ns2.skok.cz, ns.skok.cz...)

Analysis

Hierarchy

www.hackuj.cz is delegated beneath hackuj.cz.

IP Addresses

hackuj.cz points to the IP addresses 185.102.21.149 and 2001:880:0:15::14e

Among the host names that share IP numbers with hackuj.cz are procentrum.cz, lege.cz, cebseco.com and two others.

Name Servers

DNS for hackuj.cz is handled by 6 name servers: ns3.webglobe.com, ns2.skok.cz, ns.skok.cz and 3 others.

There is at least partial name server overlap between hackuj.cz and other domains — movir.sk, duotop.cz, getpost.cz and two more among them.

These name servers regularly appear alongside ns2.webglobe.cz, ns1.webglobe.cz, ns3.skokcz.eu and 3 other name servers in NS record sets.

Hosts with two IP numbers each:

ns3.webglobe.com has two IP addresses: 178.62.60.201 and 2a03:b0c0:1:d0::1090:2001.

ns2.skok.cz has two IP addresses: 217.31.48.201 and 2001:1ab0:7e1e:2::5.

ns.skok.cz has two IP addresses: 185.65.223.35 and 2a00:1e40:a:53::5.

ns1.webglobe.cz has two IP addresses: 185.65.223.35 and 2a00:1e40:a:53::5.

ns2.webglobe.cz has two IP addresses: 217.31.48.201 and 2001:1ab0:7e1e:2::5.

ns3.skokcz.eu has two IP addresses: 178.62.60.201 and 2a03:b0c0:1:d0::1090:2001.

Host names pointing to 2a03:b0c0:1:d0::1090:2001 IP addresses: ns3.webglobe.com and ns3.skokcz.eu.

Host names pointing to 178.62.60.201 IP addresses: ns3.webglobe.com and ns3.skokcz.eu.

Host names pointing to 2001:1ab0:7e1e:2::5 IP addresses: ns2.skok.cz and ns2.webglobe.cz.

Host names pointing to 217.31.48.201 IP addresses: ns2.skok.cz and ns2.webglobe.cz.

Host names pointing to 2a00:1e40:a:53::5 IP addresses: ns.skok.cz and ns1.webglobe.cz.

Host names pointing to 185.65.223.35 IP addresses: ns.skok.cz and ns1.webglobe.cz.

Mail Servers

The MX records for hackuj.cz point to two mail servers: mx.skok.cz and mxbackup.skok.cz.

hackuj.cz has the same mail server arrangement as a number of other domains, for example boxy.cz, vavable.eu, hracskekarty.cz and two more.

Some mail servers of hackuj.cz are also used by other domains, notably zstynska.cz and topsoft.cz.

Both mx.skok.cz and mxbackup.skok.cz have a single IP address, 62.109.128.119, and share it.

Host names pointing to 62.109.128.119 IP addresses: mx.skok.cz and mxbackup.skok.cz.