rtc.pt - dns.ninja

`rtc.pt`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:8e88^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:5757^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.87.87^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.142.136^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`brett.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b4c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brett.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c14c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`brett.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:214c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`brett.ns.cloudflare.com`
		A	108.162.193.76^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brett.ns.cloudflare.com`
		A	172.64.33.76^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brett.ns.cloudflare.com`
		A	173.245.59.76^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brett.ns.cloudflare.com`
NS	`edna.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a6d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`edna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`edna.ns.cloudflare.com`
		A	108.162.192.109^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
		A	172.64.32.109^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
		A	173.245.58.109^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
MX	`rtc-pt.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:ca09::2^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am0pr83cu00402.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::d^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as9pr05cu01305.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::f^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00307.inbound.protection.outlook.com`
		A	52.101.68.36^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db5pr02cu00104.inbound.protection.outlook.com`
		A	52.101.73.1^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am3pr04cu00501.inbound.protection.outlook.com`
		A	52.101.73.15^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
		A	52.101.73.16^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as2pr05cu00100.inbound.protection.outlook.com`
TXT	`MS=45642F20547105E29C1F659B1D83F153809A6064`
TXT	`MS=ms88705646`
TXT	`google-site-verification=NRvtnD2lz2pcQaQj_llVGQ4a9ZTVrooklI5l1f_EHPY`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.87.87, 172.67.142.136
		IPv6 hints	2606:4700:3030::ac43:8e88, 2606:4700:3035::6815:5757
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=3, name=cloudflare-ech.com
SOA	`brett.ns.cloudflare.com`dns@cloudflare.com serial=2405959878

`pt`

	DNSSEC	🔒 Signed (DS record present)
	NS	`curiosity.dns.pt` ⭐
	NS	`a.dns.pt`
	NS	`b.dns.pt`
	NS	`c.dns.pt`
	NS	`d.dns.pt`
	NS	`e.dns.pt`
	NS	`g.dns.pt`
	NS	`h.dns.pt`
	NS	`ns.dns.br` ⚠️ Not in parent delegation
	NS	`ns2.nic.fr` ⚠️ Not in parent delegation
	SOA	`curiosity.dns.pt`request@dns.pt 2026-06-04 #16

Subdomains

www.rtc.pt

Same first word

rtc.org.au

rtc.by

rtc.es

rtc.com

rtc.co

rtc.mx

rtc.eu

rtc.net.au

rtc.cloud

rtc.tv

rtc.expert

rtc.guru

rtc.ie

rtc.com.pl

rtc.education

rtc.london

rtc.cv

rtc.no-ip.org

rtc.li

rtc.pt

rtc.edu

rtc.pl

rtc.coop

rtc.co.za

rtc.hr

rtc.cc

rtc.bt

rtc.email

rtc.sg

rtc.cz

rtc.world

rtc.spb.ru

rtc.fi

rtc.berlin

rtc.lu

rtc.okinawa

rtc.edu.ge

rtc.directory

rtc.ru

rtc.sc

rtc.nl

rtc.exchange

rtc.lv

rtc.org.uk

rtc.si

rtc.systems

rtc.su

rtc.edu.vn

rtc.org

rtc.be

rtc.kz

rtc.ac.th

rtc.no

rtc.net.br

rtc.services

rtc.com.sg

rtc.ro

rtc.jp

rtc.taxi

rtc.nyc

rtc.consulting

rtc.hu

rtc.co.nz

rtc.at

rtc.it

rtc.cl

rtc.com.br

rtc.se

rtc.solutions

rtc.net

rtc.ly

rtc.rs

rtc.fr

rtc.gob.mx

rtc.lt

rtc.com.pk

rtc.com.tw

rtc.bg

rtc.com.au

rtc.co.th

rtc.com.ua

rtc.co.uk

rtc.or.kr

rtc.synology.me

rtc.uk.net

rtc.com.tr

rtc.travel

rtc.la

Similar names

ctr.com.hk

trc.co

trc.com.tw

tcr.ro

trc.sa

ctr.in

crt.city

rct.be

crt.gob.mx

crt.com.co

rct.hr

ctr.hu

crt.in

trc.net.nz

tcr.enterprises

trc.events

crt.construction

crt.co.jp

crt.cl

ctr.cm

crt.com.ar

ctr.ir

crt.red

trc.org

rct.nl

trc.cn

crt.li

trc.dev

crt.net

tcr.be

rct.cn

trc.fr

ctr.me

tcr.mobi

rct.com.au

crt.ch

rct.net.au

crt.sk

trc.cymru

ctr.info

ctr.hr

crt.me

trc.ro

ctr.com.tr

trc.modena.it

tcr.events

ctr.us

crt.com.au

trc.us

ctr.com.cn

crt.org.vn

tcr.holdings

tcr.no

trc.tv

crt.at

tcr.at

crt.com

ctr.com.br

tcr.vn

crt.cz

trc.co.com

ctr.care

tcr.fr

trc.gov.om

ctr.ch

ctr.it

crt.cloud

rct.cz

ctr.gov.me

trc.pt

trc.city

crt.agency

trc.tw

tcr.net

ctr.sk

ctr.rs

trc.govt.nz

trc.ch

tcr.qa

DNS History

27 records (7 active, 20 former)

●NSbrett.ns.cloudflare.com2016-09-02 → 2026-06-04 · 7 obs

○ 2016-05-10 15:33:14
● 2016-09-02 17:51:12
● 2017-09-08 23:55:30
○ 2021-01-05 20:10:02
○ 2021-01-07 13:37:52
● 2026-02-15 16:45:08
● 2026-06-04 08:19:12

●NSedna.ns.cloudflare.com2016-09-02 → 2026-06-04 · 7 obs

○ 2016-05-10 15:33:14
● 2016-09-02 17:51:12
● 2017-09-08 23:55:30
○ 2021-01-05 20:10:02
○ 2021-01-07 13:37:52
● 2026-02-15 16:45:08
● 2026-06-04 08:19:12

○NSns1.dnscpanel.com2021-01-05 → 2021-01-07 · 5 obs

○ 2017-09-08 23:55:30
● 2021-01-05 20:10:02
● 2021-01-07 13:37:52
○ 2026-02-15 16:45:08
○ 2026-06-04 08:19:12

○NSns1.esoterica.com2015-08-07 → 2016-05-10 · 4 obs

● 2015-08-07 16:32:16
● 2016-05-10 15:33:14
○ 2016-09-02 17:51:12
○ 2026-06-04 08:19:12

○NSns2.dnscpanel.com2021-01-05 → 2021-01-07 · 5 obs

○ 2017-09-08 23:55:30
● 2021-01-05 20:10:02
● 2021-01-07 13:37:52
○ 2026-02-15 16:45:08
○ 2026-06-04 08:19:12

○NSns2.esoterica.com2015-08-07 → 2016-05-10 · 4 obs

● 2015-08-07 16:32:16
● 2016-05-10 15:33:14
○ 2016-09-02 17:51:12
○ 2026-06-04 08:19:12

○NSns3.dnscpanel.com2021-01-05 → 2021-01-07 · 5 obs

○ 2017-09-08 23:55:30
● 2021-01-05 20:10:02
● 2021-01-07 13:37:52
○ 2026-02-15 16:45:08
○ 2026-06-04 08:19:12

○MXalt1.aspmx.l.google.com2021-01-05 → 2026-05-26 · 5 obs

○ 2015-08-07 16:32:16
● 2021-01-05 20:10:02
● 2026-05-26 07:53:10
○ 2026-05-30 00:02:36
○ 2026-06-04 08:19:12

○MXalt2.aspmx.l.google.com2021-01-05 → 2026-05-26 · 5 obs

○ 2015-08-07 16:32:16
● 2021-01-05 20:10:02
● 2026-05-26 07:53:10
○ 2026-05-30 00:02:36
○ 2026-06-04 08:19:12

○MXalt3.aspmx.l.google.com2021-01-05 → 2026-05-26 · 5 obs

○ 2015-08-07 16:32:16
● 2021-01-05 20:10:02
● 2026-05-26 07:53:10
○ 2026-05-30 00:02:36
○ 2026-06-04 08:19:12

○MXalt4.aspmx.l.google.com2021-01-05 → 2026-05-26 · 5 obs

○ 2015-08-07 16:32:16
● 2021-01-05 20:10:02
● 2026-05-26 07:53:10
○ 2026-05-30 00:02:36
○ 2026-06-04 08:19:12

○MXaspmx.l.google.com2015-08-07 → 2026-05-26 · 4 obs

● 2015-08-07 16:32:16
● 2026-05-26 07:53:10
○ 2026-05-30 00:02:36
○ 2026-06-04 08:19:12

●MXrtc-pt.mail.protection.outlook.com2026-05-30 → 2026-06-04 · 3 obs

○ 2026-05-26 07:53:10
● 2026-05-30 00:02:36
● 2026-06-04 08:19:12

●A104.21.87.872026-02-15 → 2026-06-04 · 5 obs

○ 2021-01-07 13:37:52
● 2026-02-15 16:45:08
○ 2026-02-18 00:56:58
● 2026-03-07 19:06:36
● 2026-06-04 08:19:12

○A104.24.98.1682016-09-02 → 2017-09-08 · 5 obs

○ 2016-05-10 15:33:14
● 2016-09-02 17:51:12
● 2017-09-08 23:55:30
○ 2021-01-05 20:10:02
○ 2026-06-04 08:19:12

○A104.24.99.1682016-09-02 → 2017-09-08 · 5 obs

○ 2016-05-10 15:33:14
● 2016-09-02 17:51:12
● 2017-09-08 23:55:30
○ 2021-01-05 20:10:02
○ 2026-06-04 08:19:12

●A172.67.142.1362026-02-15 → 2026-06-04 · 5 obs

○ 2021-01-07 13:37:52
● 2026-02-15 16:45:08
○ 2026-02-18 00:56:58
● 2026-03-07 19:06:36
● 2026-06-04 08:19:12

○A188.114.96.02026-02-18 → 2026-02-18 · 4 obs

○ 2026-02-15 16:45:08
● 2026-02-18 00:56:58
○ 2026-03-07 19:06:36
○ 2026-06-04 08:19:12

○A188.114.97.02026-02-18 → 2026-02-18 · 4 obs

○ 2026-02-15 16:45:08
● 2026-02-18 00:56:58
○ 2026-03-07 19:06:36
○ 2026-06-04 08:19:12

○A2400:cb00:2048:1::6818:62a82016-09-02 → 2017-09-08 · 5 obs

○ 2016-05-10 15:33:14
● 2016-09-02 17:51:12
● 2017-09-08 23:55:30
○ 2021-01-05 20:10:02
○ 2026-06-04 08:19:12

○A2400:cb00:2048:1::6818:63a82016-09-02 → 2017-09-08 · 5 obs

○ 2016-05-10 15:33:14
● 2016-09-02 17:51:12
● 2017-09-08 23:55:30
○ 2021-01-05 20:10:02
○ 2026-06-04 08:19:12

●A2606:4700:3030::ac43:8e882026-02-15 → 2026-06-04 · 5 obs

○ 2021-01-07 13:37:52
● 2026-02-15 16:45:08
○ 2026-02-18 00:56:58
● 2026-03-07 19:06:36
● 2026-06-04 08:19:12

●A2606:4700:3035::6815:57572026-02-15 → 2026-06-04 · 5 obs

○ 2021-01-07 13:37:52
● 2026-02-15 16:45:08
○ 2026-02-18 00:56:58
● 2026-03-07 19:06:36
● 2026-06-04 08:19:12

○A2a06:98c1:3120::2026-02-18 → 2026-02-18 · 4 obs

○ 2026-02-15 16:45:08
● 2026-02-18 00:56:58
○ 2026-03-07 19:06:36
○ 2026-06-04 08:19:12

○A2a06:98c1:3121::2026-02-18 → 2026-02-18 · 4 obs

○ 2026-02-15 16:45:08
● 2026-02-18 00:56:58
○ 2026-03-07 19:06:36
○ 2026-06-04 08:19:12

○A80.172.241.462015-08-07 → 2016-05-10 · 4 obs

● 2015-08-07 16:32:16
● 2016-05-10 15:33:14
○ 2016-09-02 17:51:12
○ 2026-06-04 08:19:12

○A94.126.169.2392021-01-05 → 2021-01-07 · 5 obs

○ 2017-09-08 23:55:30
● 2021-01-05 20:10:02
● 2021-01-07 13:37:52
○ 2026-02-15 16:45:08
○ 2026-06-04 08:19:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pt	a.dns.pt, b.dns.pt, c.dns.pt, d.dns.pt...	-
rtc.pt	brett.ns.cloudflare.com, edna.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.76

NS records: brett.ns.cloudflare.com, edna.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rtc.pt (unsigned zone)

⏱️ Timing

Total: 609ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.87.87, 172.67.142.136`
AAAA	2	`2606:4700:3035::6815:5757, 2606:4700:3030::ac43:8e88`
NS	2	`brett.ns.cloudflare.com, edna.ns.cloudflare.com`
MX	1	`rtc-pt.mail.protection.outlook.com (pri:`
TXT	4	`MS=45642F20547105E29C1F659B1D83F153809A6, MS=ms88705646...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`brett.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

The domain www.rtc.pt falls under the parent rtc.pt.

IP Addresses

rtc.pt maps to 4 IP numbers, specifically 104.21.87.87, 172.67.142.136, 2606:4700:3030::ac43:8e88 and 2606:4700:3035::6815:5757.

Two other host names, along with sweety-win.uk, falcon-bms.com and www.kpo-defender.pro, also share IP numbers with rtc.pt.

Name Servers

DNS delegation for rtc.pt points to two name servers: brett.ns.cloudflare.com and edna.ns.cloudflare.com.

rtc.pt shares its NS records with other domains, for example hongdungg.com, yqchaoyu.com, 12232a.com and two others.

At least some of rtc.pt's name servers are shared with other domains, for example 1xbet-gywd.xyz, ananmall.com, shimlataxiservices.in and two more.

These name servers tend to be deployed in combination with the name servers cortney.ns.cloudflare.com and igor.ns.cloudflare.com.

DNS names with 6 IP addresses:

brett.ns.cloudflare.com directs to 108.162.193.76, 172.64.33.76, 173.245.59.76 and three others.

edna.ns.cloudflare.com directs to 108.162.192.109, 172.64.32.109, 173.245.58.109 and three others.

Mail Servers

The sole mail server for rtc.pt is rtc-pt.mail.protection.outlook.com.

rtc-pt.mail.protection.outlook.com resolves to 8 IP numbers in total: 52.101.68.36, 52.101.73.1, 52.101.73.15 and five additional addresses.