rt.uk - dns.ninja

`rt.uk`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:2fac^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:abb1^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.47.172^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.171.177^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`agustin.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c5a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`agustin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c35a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`agustin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:235a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`agustin.ns.cloudflare.com`
		A	108.162.195.90^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`agustin.ns.cloudflare.com`
		A	162.159.44.90^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`agustin.ns.cloudflare.com`
		A	172.64.35.90^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`agustin.ns.cloudflare.com`
NS	`carla.ns.cloudflare.com`
		A	2606:4700:50::a29f:2656^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carla.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c256^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`carla.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2256^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`carla.ns.cloudflare.com`
		A	108.162.194.86^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carla.ns.cloudflare.com`
		A	162.159.38.86^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carla.ns.cloudflare.com`
		A	172.64.34.86^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carla.ns.cloudflare.com`
MX	`fwd0.hosts.co.uk` ⭐
		A	85.233.160.22^{🇬🇧 ISIONUK85.233.160.0/19 Namesco Limited}
			PTR	`fwd0.hosts.co.uk`
MX	`fwd1.hosts.co.uk` ⭐
		A	85.233.160.23^{🇬🇧 ISIONUK85.233.160.0/19 Namesco Limited}
			PTR	`fwd1.hosts.co.uk`
MX	`fwd2.hosts.co.uk` ⭐
		A	85.233.160.24^{🇬🇧 ISIONUK85.233.160.0/19 Namesco Limited}
			PTR	`fwd2.hosts.co.uk`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.47.172, 172.67.171.177
		IPv6 hints	2606:4700:3031::6815:2fac, 2606:4700:3037::ac43:abb1
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=76, name=cloudflare-ech.com
SOA	`agustin.ns.cloudflare.com`dns@cloudflare.com serial=2407227169

`uk`

	DNSSEC	🔒 Signed (DS record present)
	NS	`dns1.nic.uk` ⭐
	NS	`dns2.nic.uk`
	NS	`dns3.nic.uk`
	NS	`dns4.nic.uk`
	NS	`nsa.nic.uk`
	NS	`nsb.nic.uk`
	NS	`nsc.nic.uk`
	NS	`nsd.nic.uk`
	SOA	`dns1.nic.uk`hostmaster@nic.uk serial=1784138085

Same first word

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

rt.live

rt.com.tw

rt.hu

rt.eu

rt.lv

rt.com.ar

rt.sakura.ne.jp

rt.cr

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.xen.prgmr.com

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

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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.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

tr.ink

tr.ee

tr.cz

tr.abbott

tr.se

DNS History

17 records (9 active, 8 former)

●NSagustin.ns.cloudflare.com2026-02-19 → 2026-07-15 · 3 obs

○ 2017-09-26 05:15:44
● 2026-02-19 01:38:32
● 2026-07-15 18:22:00

●NScarla.ns.cloudflare.com2026-02-19 → 2026-07-15 · 3 obs

○ 2017-09-26 05:15:44
● 2026-02-19 01:38:32
● 2026-07-15 18:22:00

○NSns0.phase8.net2015-12-14 → 2017-09-26 · 4 obs

● 2015-12-14 19:24:16
● 2017-09-26 05:15:44
○ 2026-02-19 01:38:32
○ 2026-07-15 18:22:00

○NSns1.phase8.net2015-12-14 → 2017-09-26 · 4 obs

● 2015-12-14 19:24:16
● 2017-09-26 05:15:44
○ 2026-02-19 01:38:32
○ 2026-07-15 18:22:00

○NSns2.phase8.net2015-12-14 → 2017-09-26 · 4 obs

● 2015-12-14 19:24:16
● 2017-09-26 05:15:44
○ 2026-02-19 01:38:32
○ 2026-07-15 18:22:00

●MXfwd0.hosts.co.uk2015-12-14 → 2026-07-15 · 2 obs

● 2015-12-14 19:24:16
● 2026-07-15 18:22:00

●MXfwd1.hosts.co.uk2015-12-14 → 2026-07-15 · 2 obs

● 2015-12-14 19:24:16
● 2026-07-15 18:22:00

●MXfwd2.hosts.co.uk2015-12-14 → 2026-07-15 · 2 obs

● 2015-12-14 19:24:16
● 2026-07-15 18:22:00

●A104.21.47.1722026-02-19 → 2026-07-15 · 12 obs

○ 2017-09-26 05:15:44
● 2026-02-19 01:38:32
● 2026-02-27 07:03:46
○ 2026-02-27 14:57:54
● 2026-03-02 03:42:00
● 2026-03-02 17:28:40
○ 2026-03-10 05:21:54
● 2026-03-13 05:56:26
● 2026-03-15 01:36:06
○ 2026-03-17 21:37:30
● 2026-03-18 22:30:20
● 2026-07-15 18:22:00

○A172.64.80.12026-02-27 → 2026-03-17 · 11 obs

○ 2026-02-19 01:38:32
○ 2026-02-27 07:03:46
● 2026-02-27 14:57:54
○ 2026-03-02 03:42:00
○ 2026-03-02 17:28:40
● 2026-03-10 05:21:54
○ 2026-03-13 05:56:26
○ 2026-03-15 01:36:06
● 2026-03-17 21:37:30
○ 2026-03-18 22:30:20
○ 2026-07-15 18:22:00

●A172.67.171.1772026-02-19 → 2026-07-15 · 12 obs

○A2606:4700:130:436c:6f75:6466:6c61:72652026-02-27 → 2026-03-17 · 8 obs

○ 2026-02-19 01:38:32
○ 2026-02-27 07:03:46
● 2026-02-27 14:57:54
○ 2026-03-02 03:42:00
○ 2026-03-15 01:36:06
● 2026-03-17 21:37:30
○ 2026-03-18 22:30:20
○ 2026-07-15 18:22:00

○A2606:4700:3030::ac43:abb12026-02-19 → 2026-03-18 · 10 obs

○ 2017-09-26 05:15:44
● 2026-02-19 01:38:32
● 2026-02-27 07:03:46
○ 2026-02-27 14:57:54
● 2026-03-02 03:42:00
● 2026-03-15 01:36:06
○ 2026-03-17 21:37:30
● 2026-03-18 22:30:20
○ 2026-06-29 15:26:10
○ 2026-07-15 18:22:00

●A2606:4700:3031::6815:2fac2026-06-29 → 2026-07-15 · 3 obs

○ 2026-03-18 22:30:20
● 2026-06-29 15:26:10
● 2026-07-15 18:22:00

○A2606:4700:3032::6815:2fac2026-02-19 → 2026-03-18 · 10 obs

●A2606:4700:3037::ac43:abb12026-06-29 → 2026-07-15 · 3 obs

○ 2026-03-18 22:30:20
● 2026-06-29 15:26:10
● 2026-07-15 18:22:00

○A85.233.160.222015-12-14 → 2017-09-26 · 4 obs

● 2015-12-14 19:24:16
● 2017-09-26 05:15:44
○ 2026-02-19 01:38:32
○ 2026-07-15 18:22:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
uk	nsc.nic.uk, nsb.nic.uk, nsa.nic.uk, dns2.nic.uk...	-
rt.uk	carla.ns.cloudflare.com, agustin.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.90

NS records: carla.ns.cloudflare.com, agustin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rt.uk (unsigned zone)

⏱️ Timing

Total: 607ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.171.177, 104.21.47.172`
AAAA	2	`2606:4700:3037::ac43:abb1, 2606:4700:3031::6815:2fac`
NS	2	`agustin.ns.cloudflare.com, carla.ns.cloudflare.com`
MX	3	`fwd0.hosts.co.uk (pri: 30), fwd1.hosts.co.uk (pri: 30)...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`agustin.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

rt.uk points to the four IP addresses 104.21.47.172, 172.67.171.177, 2606:4700:3031::6815:2fac and 2606:4700:3037::ac43:abb1.

Among the host names that share IP numbers with rt.uk are iserve4u.ch, gaibfoundatlion.network, sanborn.umi.com and two others.

Name Servers

rt.uk uses two name servers for its delegation: agustin.ns.cloudflare.com and carla.ns.cloudflare.com.

rt.uk has the same name server delegation as a number of other domains, such as regtransfersco.uk, shige.group, diwal.ir and two more.

The name servers of rt.uk overlap at least partially with those of other domains — among them vintagemotorcars.us, fzeol.com.cn, o7z2-p.xin and two more.

These name servers commonly co-occur with the name servers matias.ns.cloudflare.com, oswald.ns.cloudflare.com, sarah.ns.cloudflare.com and izabella.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

Hostname agustin.ns.cloudflare.com directs to 108.162.195.90, 162.159.44.90 and 172.64.35.90 along with 3 other IP addresses.

Hostname carla.ns.cloudflare.com directs to 108.162.194.86, 162.159.38.86 and 172.64.34.86 along with 3 other IP addresses.

Mail Servers

Mail for rt.uk is routed through three mail servers — fwd0.hosts.co.uk, fwd1.hosts.co.uk and fwd2.hosts.co.uk.

rt.uk shares at least some of its mail servers with other domains — for example howtotakechargeofyourcareer.com, omhs.org.uk, advisercalc.com and two more.

The hostnames fwd0.hosts.co.uk, fwd1.hosts.co.uk and fwd2.hosts.co.uk each resolve to a single IP: fwd0.hosts.co.uk → 85.233.160.22, fwd1.hosts.co.uk → 85.233.160.23, fwd2.hosts.co.uk → 85.233.160.24.