`datatechnikplus.cz`

DNSSEC	🔒 Signed (DS record present)
A	89.221.223.239^{🇨🇿 WEDOS89.221.208.0/20 Internet, a.s.}
		PTR	`web01.inizio.cz`
NS	`ns2.web4u.cz` ⭐
		A	2a02:a40:100:28ff::12^{🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s.}
			PTR	`ns2.web4u.cz`
		A	85.207.53.12^{🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block}
			PTR	`ns2.web4u.cz`
NS	`ns.web4u.cz`
		A	2001:1568:fd::241^{🇨🇿 WEB4U2001:1568::/33}
			PTR	`ns.web4u.cz`
		A	185.14.224.241^{🇨🇿 WEB4U185.14.224.0/23}
			PTR	`ns.web4u.cz`
SOA	`ns.web4u.cz`admin@web4u.cz 2010-07-02 #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=1774657334

Subdomains

minternet.datatechnikplus.cz

Same first word

datatechnikplus.cz

DNS History

5 records (3 active, 2 former)

●NSns.web4u.cz2015-06-23 → 2026-03-28 · 2 obs

● 2015-06-23 05:57:22
● 2026-03-28 01:10:22

●NSns2.web4u.cz2015-06-23 → 2026-03-28 · 2 obs

● 2015-06-23 05:57:22
● 2026-03-28 01:10:22

○MXminternet.datatechnikplus.cz2015-06-23 → 2017-02-11 · 4 obs

● 2015-06-23 05:57:22
● 2017-02-11 15:51:34
○ 2019-12-21 11:49:52
○ 2026-03-28 01:10:22

●A89.221.223.2392026-03-09 → 2026-03-28 · 3 obs

○ 2019-12-21 11:49:52
● 2026-03-09 23:36:02
● 2026-03-28 01:10:22

○A93.185.102.632015-06-23 → 2019-12-21 · 4 obs

● 2015-06-23 05:57:22
● 2019-12-21 11:49:52
○ 2026-03-09 23:36:02
○ 2026-03-28 01:10:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
datatechnikplus.cz	ns.web4u.cz, ns2.web4u.cz	4 records

✅ Authoritative Response

Server:85.207.53.12

NS records: ns.web4u.cz, ns2.web4u.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 997ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.221.223.239`
NS	2	`ns.web4u.cz, ns2.web4u.cz`
SOA	1	`ns.web4u.cz admin.web4u.cz`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)

Analysis

Hierarchy

The parent of minternet.datatechnikplus.cz is datatechnikplus.cz.

IP Addresses

datatechnikplus.cz points to IP number: 89.221.223.239.

Other host names such as liliput.cz, web01.inizio.cz, izolace-izotrade.cz, pmh-co.cz and klor.cz share IPs with datatechnikplus.cz.

Name Servers

datatechnikplus.cz is delegated to two name servers: ns2.web4u.cz and ns.web4u.cz.

datatechnikplus.cz shares the same name server setup as lukrecius.cz, arvo.cz, dog-club.cz, konfigo.com and germ.eu.

Host names with two IP numbers: ns2.web4u.cz points to: 2a02:a40:100:28ff::12 and 85.207.53.12; ns.web4u.cz points to: 2001:1568:fd::241 and 185.14.224.241.

datatechnikplus.cz - robtex.com