`rt.cx`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:b9a3^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:2433^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.36.51^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.185.163^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dion.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b9c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dion.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dion.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dion.ns.cloudflare.com`
		A	108.162.193.156^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dion.ns.cloudflare.com`
		A	172.64.33.156^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dion.ns.cloudflare.com`
		A	173.245.59.156^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dion.ns.cloudflare.com`
NS	`marge.ns.cloudflare.com`
		A	2606:4700:50::adf5:3abf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marge.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0bf^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`marge.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20bf^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`marge.ns.cloudflare.com`
		A	108.162.192.191^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.32.191^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	173.245.58.191^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`_dc-mx.5e7fb45f75d1.rt.cx` ⭐
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.36.51, 172.67.185.163
		IPv6 hints	2606:4700:3034::ac43:b9a3, 2606:4700:3035::6815:2433
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=53, name=cloudflare-ech.com
SOA	`dion.ns.cloudflare.com`dns@cloudflare.com serial=2408263681

`cx`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns.anycast.nic.cx` ⭐
	NS	`ns1.anycastdns.cz`
	NS	`ns2.anycastdns.cz`
	TXT	`Generation Time: 1784625831`
	TXT	`Generation Time ISO 8601: 2026-07-21 09:23:51`
	SOA	`ns.anycast.nic.cx`hostmaster@coccaregistry.org 2026-07-21 #8

Previously MX for

www.rt.cx

rt.cx

Subdomains

www.rt.cx

Same first word

rt.live

rt.com.tw

rt.hu

rt.eu

rt.lv

rt.com.ar

rt.sakura.ne.jp

rt.training

rt.je

rt.co.il

rt.is

rt.by

rt.co.ua

rt.cm

rt.co

rt.ee

rt.gg

rt.org.ua

rt.fi

rt.ms

rt.com.br

rt.ac.th

rt.world

rt.rs

rt.chat

rt.bh

rt.systems

rt.at

rt.tc

rt.gw

rt.fr

rt.x0.com

rt.inf.br

rt.org.ru

rt.cn

rt.ro

rt.ma

rt.com.tr

rt.com.sa

rt.net

rt.fyi

rt.cc

rt.com.co

rt.cx

rt.lc

rt.org.tr

rt.vg

rt.academy

rt.support

rt.wtf

rt.gy

rt.tel

rt.ht

rt.to

rt.sk

rt.ru

rt.com

rt.ua

rt.fm

rt.nu

rt.com.es

rt.dk

rt.sg

rt.com.au

rt.ink

rt.plus

rt.uk

rt.tr

rt.co.uk

rt.no

rt.center

rt.gov.sa

rt.md

rt.be

rt.su

rt.nl

rt.ca

rt.biz

rt.net.ua

rt.de

rt.lt

rt.org

Similar names

tr.group

tr.capital

tr.mba

tr

tr.am

tr.taxi

tr.vc

tr.com.pl

tr.la

tr.ro

tr.link

tr.hu

tr.is

tr.gl

tr.edgesuite.net

tr.systems

tr.cx

tr.net.tr

tr.nl

tr.s3.eu-central-1.amazonaws.com

tr.com.mx

tr.kg

tr.s3-website-eu-west-1.amazonaws.com

tr.fr

tr.ge

tr.cm

tr.nu

tr.university

tr.cl

tr.gs

tr.ht

tr.land

tr.ca

tr.co.kr

tr.af

tr.blogspot.com

tr.al

tr.eco.br

tr.church

tr.gz.cn

tr.center

tr.tv

tr.training

tr.energy

tr.cn

tr.gen.tr

tr.memorial

tr.org

tr.tc

tr.ph

tr.fi

tr.nhs.uk

tr.su

tr.akamaized.net

tr.k12.in.us

tr.com.cn

tr.s3-website-us-east-1.amazonaws.com

tr.gp

tr.com.au

DNS History

21 records (7 active, 14 former)

●NSdion.ns.cloudflare.com2015-10-19 → 2026-07-21 · 6 obs

○ 2015-08-24 01:28:20
● 2015-10-19 08:07:32
● 2026-05-30 18:58:22
○ 2026-06-04 11:16:36
● 2026-06-06 20:34:22
● 2026-07-21 10:52:48

●NSmarge.ns.cloudflare.com2015-10-19 → 2026-07-21 · 6 obs

○ 2015-08-24 01:28:20
● 2015-10-19 08:07:32
● 2026-05-30 18:58:22
○ 2026-06-04 11:16:36
● 2026-06-06 20:34:22
● 2026-07-21 10:52:48

○NSns1.iwantmyname.net2015-08-24 → 2015-08-24 · 3 obs

● 2015-08-24 01:28:20
○ 2015-10-19 08:07:32
○ 2026-07-21 10:52:48

○NSns2.iwantmyname.net2015-08-24 → 2015-08-24 · 3 obs

● 2015-08-24 01:28:20
○ 2015-10-19 08:07:32
○ 2026-07-21 10:52:48

○NSns3.iwantmyname.net2015-08-24 → 2015-08-24 · 3 obs

● 2015-08-24 01:28:20
○ 2015-10-19 08:07:32
○ 2026-07-21 10:52:48

○NSns4.iwantmyname.net2015-08-24 → 2015-08-24 · 3 obs

● 2015-08-24 01:28:20
○ 2015-10-19 08:07:32
○ 2026-07-21 10:52:48

●MX_dc-mx.5e7fb45f75d1.rt.cx2026-05-17 → 2026-07-21 · 6 obs

○ 2019-08-12 13:04:58
● 2026-05-17 02:25:04
● 2026-05-30 18:58:22
○ 2026-06-04 11:16:36
● 2026-06-06 20:34:22
● 2026-07-21 10:52:48

○MXdc-af476bafa6d1.rt.cx2019-08-12 → 2019-08-12 · 4 obs

○ 2017-09-25 12:47:44
● 2019-08-12 13:04:58
○ 2026-05-17 02:25:04
○ 2026-07-21 10:52:48

○MXrt.cx2015-10-19 → 2017-09-25 · 4 obs

● 2015-10-19 08:07:32
● 2017-09-25 12:47:44
○ 2019-08-12 13:04:58
○ 2026-07-21 10:52:48

○A104.18.36.1572019-08-12 → 2019-08-12 · 4 obs

○ 2017-09-25 12:47:44
● 2019-08-12 13:04:58
○ 2026-05-17 02:25:04
○ 2026-07-21 10:52:48

○A104.18.37.1572019-08-12 → 2019-08-12 · 4 obs

○ 2017-09-25 12:47:44
● 2019-08-12 13:04:58
○ 2026-05-17 02:25:04
○ 2026-07-21 10:52:48

●A104.21.36.512026-05-17 → 2026-07-21 · 6 obs

○ 2019-08-12 13:04:58
● 2026-05-17 02:25:04
● 2026-05-30 18:58:22
○ 2026-06-04 11:16:36
● 2026-06-06 20:34:22
● 2026-07-21 10:52:48

○A138.201.89.762016-07-01 → 2016-12-13 · 5 obs

○ 2016-03-13 04:53:18
● 2016-07-01 17:34:28
● 2016-12-13 11:33:42
○ 2016-12-23 23:52:20
○ 2026-07-21 10:52:48

●A172.67.185.1632026-05-17 → 2026-07-21 · 6 obs

○ 2019-08-12 13:04:58
● 2026-05-17 02:25:04
● 2026-05-30 18:58:22
○ 2026-06-04 11:16:36
● 2026-06-06 20:34:22
● 2026-07-21 10:52:48

○A192.99.10.1692015-08-24 → 2016-03-13 · 4 obs

● 2015-08-24 01:28:20
● 2016-03-13 04:53:18
○ 2016-07-01 17:34:28
○ 2026-07-21 10:52:48

○A2606:4700:30::6812:249d2019-08-12 → 2019-08-12 · 4 obs

○ 2017-09-25 12:47:44
● 2019-08-12 13:04:58
○ 2026-05-17 02:25:04
○ 2026-07-21 10:52:48

○A2606:4700:30::6812:259d2019-08-12 → 2019-08-12 · 4 obs

○ 2017-09-25 12:47:44
● 2019-08-12 13:04:58
○ 2026-05-17 02:25:04
○ 2026-07-21 10:52:48

○A2606:4700:3031::6815:24332026-05-17 → 2026-06-06 · 7 obs

○ 2019-08-12 13:04:58
● 2026-05-17 02:25:04
● 2026-05-30 18:58:22
○ 2026-06-04 11:16:36
● 2026-06-06 20:34:22
○ 2026-06-21 12:28:58
○ 2026-07-21 10:52:48

●A2606:4700:3034::ac43:b9a32026-05-17 → 2026-07-21 · 6 obs

○ 2019-08-12 13:04:58
● 2026-05-17 02:25:04
● 2026-05-30 18:58:22
○ 2026-06-04 11:16:36
● 2026-06-06 20:34:22
● 2026-07-21 10:52:48

●A2606:4700:3035::6815:24332026-06-21 → 2026-07-21 · 3 obs

○ 2026-06-06 20:34:22
● 2026-06-21 12:28:58
● 2026-07-21 10:52:48

○A34.192.153.1492016-12-23 → 2017-09-25 · 5 obs

○ 2016-12-13 11:33:42
● 2016-12-23 23:52:20
● 2017-09-25 12:47:44
○ 2019-08-12 13:04:58
○ 2026-07-21 10:52:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cx	ns2.anycastdns.cz, ns1.anycastdns.cz, ns.anycast.nic.cx	5 records
rt.cx	dion.ns.cloudflare.com, marge.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.156

NS records: dion.ns.cloudflare.com, marge.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rt.cx (unsigned zone)

⏱️ Timing

Total: 588ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.36.51, 172.67.185.163`
AAAA	2	`2606:4700:3034::ac43:b9a3, 2606:4700:3035::6815:2433`
NS	2	`dion.ns.cloudflare.com, marge.ns.cloudflare.com`
MX	1	`_dc-mx.5e7fb45f75d1.rt.cx (pri: 0)`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dion.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 5

In-bailiwick: 2 (ns.anycast.nic.cx, ns.anycast.nic.cx)

Out-of-bailiwick: 3 (ns2.anycastdns.cz, ns1.anycastdns.cz, ns1.anycastdns.cz)

Analysis

Hierarchy

rt.cx serves as the parent of www.rt.cx.

IP Addresses

rt.cx has four IP addresses: 104.21.36.51, 172.67.185.163, 2606:4700:3034::ac43:b9a3 and 2606:4700:3035::6815:2433.

Among the host names that share IP numbers with rt.cx are jooroom.com, kettler.it, taawa.pl and two others.

Name Servers

The NS records for rt.cx delegate to dion.ns.cloudflare.com and marge.ns.cloudflare.com.

rt.cx has the same name server delegation as a number of other domains, such as intervisions.com.mt, szgdtl.com, rstuff.in and two more.

rt.cx has at least partial name server overlap with other domains, such as jiuyish.com, tiraventolur.com, bioteam.com.br and two others.

It is common to see these name servers used together with name servers josephine.ns.cloudflare.com and bella.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

dion.ns.cloudflare.com maps to 108.162.193.156, 172.64.33.156, 173.245.59.156 and 3 additional IP addresses.

marge.ns.cloudflare.com maps to 108.162.192.191, 172.64.32.191, 173.245.58.191 and 3 additional IP addresses.

Mail Servers

rt.cx routes its mail through a single mail server, _dc-mx.5e7fb45f75d1.rt.cx.

rt.cx - robtex.com

rt.cx

cx

Previously MX for

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`rt.cx`

`cx`