`centaurus.4web.cz`

	DNSSEC	⚠️ Not signed
	A	2001:67c:68::89^{🇨🇿 MASTER-AS2001:67c:68::/48 IINFO-1-IPV6-MAI-CZ}
	A	91.213.160.137^{🇨🇿 MASTER-AS91.213.160.0/24 Internet Info, s.r.o.}

`4web.cz`

	DNSSEC	🔒 Signed (DS record present)
	A	2001:67c:68::89^{🇨🇿 MASTER-AS2001:67c:68::/48 IINFO-1-IPV6-MAI-CZ}
	A	91.213.160.137^{🇨🇿 MASTER-AS91.213.160.0/24 Internet Info, s.r.o.}
	NS	`ns.iinfo.cz` ⭐
	NS	`ns6.adminit.cz`
	SOA	`ns.iinfo.cz`root@navrcholu.cz 2018-11-07 #41

WOT: SAFE (50/100)
WOT: SAFE (31/100)

PTR for

40.160.213.91.in-addr.arpa

NS for

hebo.cz

realplayer.cz

matejka.sk

exac.cz

Previously NS for

czilla.cz

simindr.cz

hamlet-muzikal.cz

positiontracker.cz

simkanic.cz

web100.cz

cwd.cz

krause.cz

countrycross.cz

MX for

forweb.cz

hebo.cz

fraus.eu

Previously MX for

netbroker.cz

medisol.cz

www.flamingo.cz

datcoma.cz

atraktivni-nabytek.cz

hamlet-muzikal.cz

filipek.eu

vuk.cz

simkanic.cz

litografie.cz

cwd.cz

flamingo.cz

konias.cz

webhost.cz

girls.cz

fwd.cz

ep-tuning.cz

adminit.eu

multibank.cz

torrimex.cz

hsicom.cz

hydrofol.com

fraus.com

4web.cz

simindr.cz

Same first word

Similar names

auruscent.com

tucunares.com

cuanterus.net

cuanterus.com

DNS History

3 records (2 active, 1 former)

●A2001:67c:68::892026-02-24 → 2026-03-28 · 3 obs

○ 2017-08-26 09:10:58
● 2026-02-24 02:41:30
● 2026-03-28 10:05:54

●A91.213.160.1372026-02-24 → 2026-03-28 · 3 obs

○ 2017-08-26 09:10:58
● 2026-02-24 02:41:30
● 2026-03-28 10:05:54

○A91.213.160.402015-08-30 → 2017-08-26 · 4 obs

● 2015-08-30 08:49:04
● 2017-08-26 09:10:58
○ 2026-02-24 02:41:30
○ 2026-03-28 10:05:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
4web.cz	ns6.adminit.cz, ns.iinfo.cz	4 records

✅ Authoritative Response

Server:46.101.163.95

NS records: ns6.adminit.cz, ns.iinfo.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 2572ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.213.160.137`
AAAA	1	`2001:67c:68::89`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns6.adminit.cz, ns.iinfo.cz, ns6.adminit.cz...)

Analysis

Name Server Role

centaurus.4web.cz functions as a name server for hebo.cz, realplayer.cz, matejka.sk and exac.cz.

ns.iinfo.cz, ns.adminit.cz and ns.wabi.cz commonly serve as name servers alongside centaurus.4web.cz.

Mail Server Role

centaurus.4web.cz serves as a mail server for forweb.cz, hebo.cz and fraus.eu.

hebo.cz and fraus.eu are commonly used as mail servers along with centaurus.4web.cz.

IP Addresses

centaurus.4web.cz points to two IPs: 2001:67c:68::89 and 91.213.160.137.

Other host names, for instance 4web.cz, clipboard.cz, mf.cz, www.4web.cz and forweb.cz share IP numbers with centaurus.4web.cz.

centaurus.4web.cz - robtex.com