`unicreditgolf.cz`

DNSSEC	🔒 Signed (DS record present)
A	81.91.86.11^{🇨🇿 WEB4U81.91.80.0/21}
		PTR	`php5.web4u.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`
MX	`mx.web4u.cz` ⭐
		A	2001:1568::7012^{🇨🇿 WEB4U2001:1568::/33}
			PTR	`mx.web4u.cz`
		A	81.91.87.12^{🇨🇿 WEB4U81.91.80.0/21}
			PTR	`mx.web4u.cz`
SOA	`ns.web4u.cz`admin@web4u.cz 2010-03-26 #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=1778663834

Subdomains

mail.unicreditgolf.cz

Same first word

unicreditgolf.cz

DNS History

5 records (4 active, 1 former)

●NSns.web4u.cz2015-07-13 → 2026-05-13 · 2 obs

● 2015-07-13 01:07:12
● 2026-05-13 09:49:10

●NSns2.web4u.cz2015-07-13 → 2026-05-13 · 2 obs

● 2015-07-13 01:07:12
● 2026-05-13 09:49:10

○MXmail.unicreditgolf.cz2015-07-13 → 2019-02-04 · 4 obs

● 2015-07-13 01:07:12
● 2019-02-04 04:42:58
○ 2026-03-29 09:07:40
○ 2026-05-13 09:49:10

●MXmx.web4u.cz2026-03-29 → 2026-05-13 · 3 obs

○ 2019-02-04 04:42:58
● 2026-03-29 09:07:40
● 2026-05-13 09:49:10

●A81.91.86.112015-07-13 → 2026-05-13 · 2 obs

● 2015-07-13 01:07:12
● 2026-05-13 09:49:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz	-
unicreditgolf.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: 2062ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.91.86.11`
NS	2	`ns.web4u.cz, ns2.web4u.cz`
MX	1	`mx.web4u.cz (pri: 10)`
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

unicreditgolf.cz is the parent of mail.unicreditgolf.cz.

IP Addresses

unicreditgolf.cz points to a single IP number: 81.91.86.11.

other host names for instance watch-tower.cz, czechpropertyinvest.com, famagusta.cz, virtusgroup.cz and montessori-podebrady.cz share IP numbers with unicreditgolf.cz.

Name Servers

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

unicreditgolf.cz shares the same name server setup as other domains, for example urazko.com, team4u.cz, pixman.eu, printing3d.cz and extra-jewellery.com.

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

Mail Servers

unicreditgolf.cz is handled by a single mail server, mx.web4u.cz.

unicreditgolf.cz shares the same mail server setup as other domains, for instance bdin.cz, mucoff.cz, superboys.cz, lempera.cz and torpedohavirov.cz.

unicreditgolf.cz shares some mail servers with other domains at least partially, for example sasta.cz.

Host mx.web4u.cz resolves to two IPs: 2001:1568::7012 and 81.91.87.12.

unicreditgolf.cz - robtex.com