rtplus.cz - dns.ninja

`rtplus.cz`

DNSSEC	⚠️ Not signed
NS	`ns1.octopus.cz` ⭐
		A	185.140.247.146^{🇨🇿 CONNECTPLUS185.140.247.0/24}
			PTR	`roztoky.octopus.cz`
NS	`ns2.octopus.cz`
		A	78.24.15.134^{🇨🇿 VSHOSTING78.24.8.0/21 I.}
			PTR	`web.euromise.com`
MX	`rtplus-cz.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::1^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00401.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::6^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00406.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::d^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db6pr03cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::b^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00103.inbound.protection.outlook.com`
		A	52.101.68.0^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	52.101.68.8^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-du0pr03cu00100.inbound.protection.outlook.com`
		A	52.101.68.21^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db4pr02cu00205.inbound.protection.outlook.com`
		A	52.101.73.15^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
TXT	`v=spf1 ip4:90.180.94.52 ip4:89.22.80.203 a:eshop.rtplus.cz a:cyberhost.octopu...`
SOA	`ns1.octopus.cz`hostmaster@octopus.cz 2025-10-31 #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=1781824637

Subdomains

remote.rtplus.cz

Same first word

rtplus.cz

Similar names

utpsrl.it

lstrup.net

trplus.com

trplus.com.tw

trplus.ru

plrust.com

plustr.com

pulstr.com

utpsrl.com

prustl.com

rplust.com

rusplt.ru

splurt.space

tplusr.com

trplus.tw

splurt.org

trupls.com

DNS History

4 records (3 active, 1 former)

●NSns1.octopus.cz2015-07-13 → 2026-06-18 · 2 obs

● 2015-07-13 00:06:58
● 2026-06-18 23:58:16

●NSns2.octopus.cz2015-07-13 → 2026-06-18 · 2 obs

● 2015-07-13 00:06:58
● 2026-06-18 23:58:16

○MXremote.rtplus.cz2015-07-13 → 2017-03-22 · 4 obs

● 2015-07-13 00:06:58
● 2017-03-22 00:56:26
○ 2026-04-05 09:39:42
○ 2026-06-18 23:58:16

●MXrtplus-cz.mail.protection.outlook.com2026-04-05 → 2026-06-18 · 3 obs

○ 2017-03-22 00:56:26
● 2026-04-05 09:39:42
● 2026-06-18 23:58:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	8 records
rtplus.cz	ns1.octopus.cz, ns2.octopus.cz	2 records

✅ Authoritative Response

Server:185.140.247.146

NS records: ns1.octopus.cz, ns2.octopus.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rtplus.cz (unsigned zone)

⏱️ Timing

Total: 806ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.octopus.cz, ns2.octopus.cz`
MX	1	`rtplus-cz.mail.protection.outlook.com (p`
TXT	1	`v=spf1 ip4:90.180.94.52 ip4:89.22.80.203`
SOA	1	`ns1.octopus.cz hostmaster.octopus.cz`

📌 Glue Records Collected

Total: 10

In-bailiwick: 8 (a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz...)

Out-of-bailiwick: 2 (ns1.octopus.cz, ns2.octopus.cz)

Analysis

Hierarchy

rtplus.cz is a parent domain of remote.rtplus.cz.

Name Servers

rtplus.cz is served by two delegated name servers, ns1.octopus.cz and ns2.octopus.cz.

rtplus.cz shares its NS records with other domains, for example ok-light-aircraft.cz, ok-aviation.cz, interbrigady.cz and two others.

ns1.octopus.cz and ns2.octopus.cz each resolve to one IP number: ns1.octopus.cz points to 185.140.247.146 and ns2.octopus.cz points to 78.24.15.134.

Mail Servers

The sole mail server for rtplus.cz is rtplus-cz.mail.protection.outlook.com.

With 8 IP addresses total, rtplus-cz.mail.protection.outlook.com resolves to 52.101.68.0, 52.101.68.8, 52.101.68.21 and 5 others.