plotovecentrum.cz - dns.ninja

`plotovecentrum.cz`

DNSSEC	⚠️ Not signed
A	217.16.184.152^{🇨🇿 VSHOSTING217.16.176.0/20 III.}
		PTR	`shean.vshosting.cz`
NS	`ns1.regzone.cz` ⭐
		A	2a00:19a0:3:71:0:d9c6:710a:1^{🇨🇿 ZONER-AS2a00:19a0::/32 ZONER-IPV6-NET}
			PTR	`ns1.regzone.cz`
		A	217.198.113.10^{🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET}
			PTR	`ns1.regzone.cz`
NS	`ns1.regzone.de`
		A	2600:3c02::f03c:91ff:fedb:a6e7^{🇺🇸 AKAMAI-LINODE-AP2600:3c02::/32 Akamai Technologies}
			PTR	`ns1.regzone.de`
		A	23.92.29.43^{🇺🇸 AKAMAI-LINODE-AP23.92.28.0/22 Akamai Technologies}
			PTR	`ns1.regzone.de`
NS	`ns1.regzone.info`
		A	2001:1528:147::10^{🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network}
			PTR	`ns1.regzone.info`
		A	81.0.233.10^{🇨🇿 CASABLANCA-AS81.0.232.0/21 Casablanca INT}
			PTR	`ns1.regzone.info`
MX	`rj.plotnet.cz` ⭐
		A	212.27.208.102^{🇨🇿 QUANTCOM-AS212.27.192.0/19}
			PTR	`rh.plotnet.cz`
MX	`rh.plotnet.cz`⁽²⁰⁾
		A	212.27.208.102^{🇨🇿 QUANTCOM-AS212.27.192.0/19}
			PTR	`rh.plotnet.cz`
TXT	`v=spf1 include:sparkpostmail.com mx ip4:93.99.192.91 ip4:217.16.184.152 ip4:1...`
SOA	`ns1.regzone.cz`administrator@czechia.cz 2026-06-29 #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=1782719240

Same first word

plotovecentrum.cz

plotovecentrum.sk

DNS History

11 records (6 active, 5 former)

●NSns1.regzone.cz2026-04-16 → 2026-06-29 · 3 obs

○ 2017-05-15 05:57:36
● 2026-04-16 22:13:44
● 2026-06-29 08:14:38

●NSns1.regzone.de2026-04-16 → 2026-06-29 · 3 obs

○ 2017-05-15 05:57:36
● 2026-04-16 22:13:44
● 2026-06-29 08:14:38

●NSns1.regzone.info2026-04-16 → 2026-06-29 · 3 obs

○ 2017-05-15 05:57:36
● 2026-04-16 22:13:44
● 2026-06-29 08:14:38

○NSns1.skynet.cz2015-08-17 → 2017-05-15 · 4 obs

● 2015-08-17 10:25:28
● 2017-05-15 05:57:36
○ 2026-04-16 22:13:44
○ 2026-06-29 08:14:38

○NSns2.skynet.cz2015-08-17 → 2017-05-15 · 4 obs

● 2015-08-17 10:25:28
● 2017-05-15 05:57:36
○ 2026-04-16 22:13:44
○ 2026-06-29 08:14:38

○MXmail.sky.cz2015-08-17 → 2017-05-15 · 4 obs

● 2015-08-17 10:25:28
● 2017-05-15 05:57:36
○ 2026-04-16 22:13:44
○ 2026-06-29 08:14:38

○MXrelay.skynet.cz2015-08-17 → 2016-04-07 · 4 obs

● 2015-08-17 10:25:28
● 2016-04-07 17:59:34
○ 2016-11-19 01:28:44
○ 2026-06-29 08:14:38

●MXrh.plotnet.cz2026-04-16 → 2026-06-29 · 3 obs

○ 2017-05-15 05:57:36
● 2026-04-16 22:13:44
● 2026-06-29 08:14:38

●MXrj.plotnet.cz2026-04-16 → 2026-06-29 · 3 obs

○ 2017-05-15 05:57:36
● 2026-04-16 22:13:44
● 2026-06-29 08:14:38

●A217.16.184.1522016-11-19 → 2026-06-29 · 3 obs

○ 2016-04-07 17:59:34
● 2016-11-19 01:28:44
● 2026-06-29 08:14:38

○A78.24.14.762015-08-17 → 2016-04-07 · 4 obs

● 2015-08-17 10:25:28
● 2016-04-07 17:59:34
○ 2016-11-19 01:28:44
○ 2026-06-29 08:14:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz	-
plotovecentrum.cz	ns1.regzone.cz, ns1.regzone.de, ns1.regzone.info	2 records

✅ Authoritative Response

Server:81.0.233.10

NS records: ns1.regzone.cz, ns1.regzone.de, ns1.regzone.info

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1874ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.16.184.152`
NS	3	`ns1.regzone.cz, ns1.regzone.de...`
MX	2	`rj.plotnet.cz (pri: 10), rh.plotnet.cz (pri: 20)`
TXT	1	`v=spf1 include:sparkpostmail.com mx ip4:`
SOA	1	`ns1.regzone.cz administrator.czechia.cz`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.regzone.cz, ns1.regzone.cz)

Analysis

IP Addresses

plotovecentrum.cz directs to one IP number, which is 217.16.184.152.

Among the host names that share IP numbers with plotovecentrum.cz are tatsuno-europe.com, spektrometry.info, mail.obec-brezina.cz and two others.

Name Servers

plotovecentrum.cz has three name servers — ns1.regzone.cz, ns1.regzone.de and ns1.regzone.info.

plotovecentrum.cz has at least partial name server overlap with other domains, such as biotronik.cz, petrbilek.cz, rybarova.cz and two others.

Each of ns1.regzone.cz, ns1.regzone.de and ns1.regzone.info points to two IP numbers. ns1.regzone.cz points to 217.198.113.10 and 2a00:19a0:3:71:0:d9c6:710a:1. ns1.regzone.de points to 23.92.29.43 and 2600:3c02::f03c:91ff:fedb:a6e7. ns1.regzone.info points to 81.0.233.10 and 2001:1528:147::10.

Mail Servers

The MX records for plotovecentrum.cz point to two mail servers: rh.plotnet.cz and rj.plotnet.cz.

plotovecentrum.cz uses the same mail servers as plotnet.cz and oploceni.cz, among others.

rh.plotnet.cz and rj.plotnet.cz each point to one IP address — 212.27.208.102.

The host names rh.plotnet.cz and rj.plotnet.cz both resolve to 212.27.208.102 IP addresses.