`engineeringtrade.cz`

DNSSEC	⚠️ Not signed
A	2001:1528:103::220:7^{🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network}
		PTR	`web1.tvujweb.net`
A	109.123.220.7^{🇨🇿 CASABLANCA-AS109.123.216.0/21 Casablanca INT}
NS	`ns.tvujweb.cz` ⭐
		A	2001:1528:103::220:3^{🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network}
			PTR	`ns.tvujweb.cz`
		A	109.123.220.3^{🇨🇿 CASABLANCA-AS109.123.216.0/21 Casablanca INT}
			PTR	`ns.tvujweb.cz`
NS	`ns.tvujweb.com`
		A	2a01:4f8:c013:cb5::1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`ns.tvujweb.com`
		A	168.119.180.52^{🇩🇪 Hetzner168.119.0.0/16 HETZNER-DC}
			PTR	`ns.tvujweb.com`
MX	`mail.tvujweb.cz` ⭐
		A	2001:1528:103::220:6^{🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network}
			PTR	`mail.tvujweb.cz`
		A	109.123.220.6^{🇨🇿 CASABLANCA-AS109.123.216.0/21 Casablanca INT}
			PTR	`mail.tvujweb.cz`
MX	`mxbackup.tvujweb.cz`⁽¹⁰⁰⁾
		A	109.123.220.6^{🇨🇿 CASABLANCA-AS109.123.216.0/21 Casablanca INT}
			PTR	`mail.tvujweb.cz`
SOA	`ns.tvujweb.cz`hostmaster@tvujweb.cz 2016-10-24 #2

`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=1774421235

Subdomains

mail.engineeringtrade.cz

Same first word

engineeringtrade.cz

DNS History

9 records (6 active, 3 former)

●NSns.tvujweb.com2016-03-07 → 2026-03-25 · 3 obs

○ 2015-12-05 13:36:02
● 2016-03-07 03:11:04
● 2026-03-25 07:13:42

●NSns.tvujweb.cz2016-03-07 → 2026-03-25 · 3 obs

○ 2015-12-05 13:36:02
● 2016-03-07 03:11:04
● 2026-03-25 07:13:42

○NSns1.tvujweb.cz2015-08-03 → 2015-12-05 · 4 obs

● 2015-08-03 14:07:52
● 2015-12-05 13:36:02
○ 2016-03-07 03:11:04
○ 2026-03-25 07:13:42

○NSns2.tvujweb.net2015-08-03 → 2015-12-05 · 4 obs

● 2015-08-03 14:07:52
● 2015-12-05 13:36:02
○ 2016-03-07 03:11:04
○ 2026-03-25 07:13:42

○MXmail.engineeringtrade.cz2015-08-03 → 2016-06-25 · 4 obs

● 2015-08-03 14:07:52
● 2016-06-25 17:59:44
○ 2017-03-15 10:10:20
○ 2026-03-25 07:13:42

●MXmail.tvujweb.cz2017-03-15 → 2026-03-25 · 3 obs

○ 2016-06-25 17:59:44
● 2017-03-15 10:10:20
● 2026-03-25 07:13:42

●MXmxbackup.tvujweb.cz2015-08-03 → 2026-03-25 · 2 obs

● 2015-08-03 14:07:52
● 2026-03-25 07:13:42

●A109.123.220.72015-08-03 → 2026-03-25 · 2 obs

● 2015-08-03 14:07:52
● 2026-03-25 07:13:42

●A2001:1528:103::220:72016-03-07 → 2026-03-25 · 3 obs

○ 2015-08-03 14:07:52
● 2016-03-07 03:11:04
● 2026-03-25 07:13:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz	-
engineeringtrade.cz	ns.tvujweb.cz, ns.tvujweb.com	-

✅ Authoritative Response

Server:168.119.180.52

NS records: ns.tvujweb.cz, ns.tvujweb.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for engineeringtrade.cz (unsigned zone)

⏱️ Timing

Total: 937ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`109.123.220.7`
AAAA	1	`2001:1528:103::220:7`
NS	2	`ns.tvujweb.cz, ns.tvujweb.com`
MX	2	`mail.tvujweb.cz (pri: 10), mxbackup.tvujweb.cz (pri: 100)`
SOA	1	`ns.tvujweb.cz hostmaster.tvujweb.cz`

Analysis

Hierarchy

The parent of mail.engineeringtrade.cz is engineeringtrade.cz.

IP Addresses

engineeringtrade.cz points to two IP numbers: 2001:1528:103::220:7 and 109.123.220.7.

Other host names such as koalicepropardubice.cz, futurak.com, speedrapid.cz, alpacek.com and web1.tvujweb.net share IPs with engineeringtrade.cz.

Name Servers

Two name servers ns.tvujweb.com and ns.tvujweb.cz handle the delegation for engineeringtrade.cz.

engineeringtrade.cz shares the same name server setup as other domains, for example jbconsult.cz, alpacek.cz, hanane.cz, fertility.cz and mijos.cz.

engineeringtrade.cz shares name servers with other domains to some extent, including tvujweb.info, tvujweb.net, pmst.lt and tvujweb.cz.

these name servers are commonly used alongside ns2.tvujweb.cz name servers.

Host names with two IP numbers:

ns.tvujweb.com points to 2a01:4f8:c013:cb5::1 and 168.119.180.52.

ns.tvujweb.cz points to 2001:1528:103::220:3 and 109.123.220.3.

Mail Servers

Two mail servers handle engineeringtrade.cz: mail.tvujweb.cz and mxbackup.tvujweb.cz.

engineeringtrade.cz shares the same mail server setup as other domains, including terumo.cz, pmst.lt, pmst.cz, kovovyrobavrbnonadlesy.cz and mixx.org.

engineeringtrade.cz shares at least partially some mail servers with other domains, for instance lanotte.cz, dojo.cz, f100r.cz, tvujweb.cz and futurak.com.

Host names with two IPs:

mail.tvujweb.cz resolves to 2001:1528:103::220:6 and 109.123.220.6.

Host names with one IP:

mxbackup.tvujweb.cz resolves to 109.123.220.6.

Hosts resolving to 109.123.220.6: mail.tvujweb.cz and mxbackup.tvujweb.cz.

engineeringtrade.cz - robtex.com