`mnd-drilling.com`

DNSSEC	⚠️ Not signed
A	46.28.106.166^{🇨🇿 WEDOS46.28.104.0/21 Internet, a.s.}
		PTR	`hc1-wd350.wedos.net`
NS	`ns1.websupport.cz` ⭐ ⚠️ Not in zone NS records
		A	2a10:bbc0::11^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns1.websupport.eu`
		A	45.10.97.11^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns1.websupport.eu`
NS	`ns.web4u.cz` ⚠️ Not in parent delegation
		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`
NS	`ns2.web4u.cz` ⚠️ Not in parent delegation
		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	`ns2.websupport.cz` ⚠️ Not in zone NS records
		A	2a02:250:3::12^{🇸🇪 ACTIVE24-AS2a02:250:3::/48}
			PTR	`ns2.websupport.eu`
		A	185.71.159.12^{🇸🇪 ACTIVE24-AS185.71.159.0/24}
			PTR	`ns2.websupport.eu`
NS	`ns3.websupport.eu` ⚠️ Not in zone NS records
		A	2a10:bbc0::13^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns3.websupport.eu`
		A	45.10.97.13^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns3.websupport.eu`
TXT	`v=spf1 mx -all`
SOA	`ns1.websupport.cz`admin@websupport.cz serial=1782364838

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1785969474

Same first word

mnd-drilling.eu

mnd-drilling.com

DNS History

8 records (6 active, 2 former)

●NSns.web4u.cz2015-07-24 → 2026-08-05 · 2 obs

● 2015-07-24 20:31:56
● 2026-08-05 22:48:52

●NSns1.websupport.cz2026-07-09 → 2026-08-05 · 3 obs

○ 2015-07-24 20:31:56
● 2026-07-09 14:22:04
● 2026-08-05 22:48:52

●NSns2.web4u.cz2015-07-24 → 2026-08-05 · 2 obs

● 2015-07-24 20:31:56
● 2026-08-05 22:48:52

●NSns2.websupport.cz2026-07-09 → 2026-08-05 · 3 obs

○ 2015-07-24 20:31:56
● 2026-07-09 14:22:04
● 2026-08-05 22:48:52

●NSns3.websupport.eu2026-07-09 → 2026-08-05 · 3 obs

○ 2015-07-24 20:31:56
● 2026-07-09 14:22:04
● 2026-08-05 22:48:52

○MXmail.mnd.cz2015-07-24 → 2017-06-01 · 4 obs

● 2015-07-24 20:31:56
● 2017-06-01 11:51:46
○ 2026-03-27 08:36:06
○ 2026-08-05 22:48:52

○A31.15.10.92015-07-24 → 2017-06-01 · 4 obs

● 2015-07-24 20:31:56
● 2017-06-01 11:51:46
○ 2026-03-27 08:36:06
○ 2026-08-05 22:48:52

●A46.28.106.1662026-03-27 → 2026-08-05 · 3 obs

○ 2017-06-01 11:51:46
● 2026-03-27 08:36:06
● 2026-08-05 22:48:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, k.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net...	-
mnd-drilling.com	ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu	-

✅ Authoritative Response

Server:45.10.97.11

NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mnd-drilling.com (unsigned zone)

⏱️ Timing

Total: 470ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`46.28.106.166`
NS	2	`ns.web4u.cz, ns2.web4u.cz`
TXT	1	`v=spf1 mx -all`
SOA	1	`ns1.websupport.cz admin.websupport.cz`

Analysis

IP Addresses

mnd-drilling.com directs to one IP number, which is 46.28.106.166.

Among the host names that share IP numbers with mnd-drilling.com are skolka.sion.cz, motorestnavyhlidce.cz, palosanto.cz and two others.

Name Servers

The authoritative name servers for mnd-drilling.com are ns2.web4u.cz, ns.web4u.cz, ns1.websupport.cz and two others.

The name servers of mnd-drilling.com overlap at least partially with those of other domains — among them bolumed.com, skinny.sk, ravak.cz and two more.

These name servers are routinely co-deployed with the name servers ns2.websupport.cz, ns3.websupport.eu, ns1.websupport.sk and two others.

Hosts with two IP numbers each:

ns2.web4u.cz maps to two IP addresses — 85.207.53.12 and 2a02:a40:100:28ff::12.

ns.web4u.cz maps to two IP addresses — 185.14.224.241 and 2001:1568:fd::241.

ns1.websupport.cz maps to two IP addresses — 45.10.97.11 and 2a10:bbc0::11.

ns2.websupport.cz maps to two IP addresses — 185.71.159.12 and 2a02:250:3::12.

ns3.websupport.eu maps to two IP addresses — 45.10.97.13 and 2a10:bbc0::13.