rtca.org - dns.ninja

`rtca.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:2eda^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:8edf^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.46.218^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.142.223^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`henry.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bb0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`henry.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1b0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`henry.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21b0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`henry.ns.cloudflare.com`
		A	108.162.193.176^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`henry.ns.cloudflare.com`
		A	172.64.33.176^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`henry.ns.cloudflare.com`
		A	173.245.59.176^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`henry.ns.cloudflare.com`
NS	`val.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aea^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`val.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ea^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`val.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ea^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`val.ns.cloudflare.com`
		A	108.162.192.234^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`val.ns.cloudflare.com`
		A	172.64.32.234^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`val.ns.cloudflare.com`
		A	173.245.58.234^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`val.ns.cloudflare.com`
MX	`us-smtp-inbound-1.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
MX	`us-smtp-inbound-2.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
TXT	`MS=ms78292262`
TXT	`v=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com ...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.46.218, 172.67.142.223
		IPv6 hints	2606:4700:3034::6815:2eda, 2606:4700:3036::ac43:8edf
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=33, name=cloudflare-ech.com
SOA	`henry.ns.cloudflare.com`dns@cloudflare.com serial=2406515688

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1785082151

rank #273147 globally
rank #21366 in the tld
WOT: SAFE (60/100)
📈 Tranco rank: #981,569

Subdomains

rtcamail.rtca.org

www.rtca.org

Same first word

rtca.net

rtca.nl

rtca.us

rtca.ca

rtca.org

rtca.com

rtca.info

rtca.ch

rtca.de

rtca.tn

rtca.ru

Similar names

crta.de

tarc.pl

trac.ca

cart.net.au

ratc.org

cart.tel

atrc.gov.ae

catr.gov.eg

acrt.com.au

artc.org.uk

arct.net

trca.com

tcra.us

arct.com

rcat.de

tarc.ru

rcat.net

catr.net

rtac.us

rtac.ddns.net

atrc.net.pk

actr.us

tarc.or.th

ract.ru

actr.fr

trac.now

arct.com.tw

rcat.fr

catr.tk

trac.jobs

trca.net

ratc.com

crat.de

cart.site

cart.app.br

actr.org

trac.nl

cart.ie

tacr.cz

trac.si

atrc.in

trac.be

trca.es

crta.com.br

ract.net.au

rtac.net

tcra.eu

atrc.info

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trac.world

trac.today

crat.com

tcra.nl

tcar.de

tcar.it

artc.co

atrc.ae

ratc.cc

tarc.co

cart.fi

rtac.co.uk

cart.me

artc.org.tw

trca.ca

crat.jp

tcra.fr

acrt.nl

rcta.at

actr.com

cart.mn

ract.de

crat.eu

ctar.com.br

ratc.ru

actr.ru

tcar.es

tarc.org

crta.cn

crat.com.br

tcar.com.vn

crta.at

arct.info

arct.ru

artc.co.za

trac.co.th

catr.de

cart.hu

tarc.com.tw

tarc.edu.my

tcar.in

cart.in

artc.sakura.ne.jp

rcta.me

atcr.org

crta.net.cn

artc.co.jp

ract.com.au

DNS History

17 records (8 active, 9 former)

●NShenry.ns.cloudflare.com2026-02-16 → 2026-07-26 · 3 obs

○ 2016-08-04 16:07:50
● 2026-02-16 01:43:30
● 2026-07-26 16:47:44

○NSns61.worldnic.com2015-07-13 → 2016-08-04 · 4 obs

● 2015-07-13 15:50:26
● 2016-08-04 16:07:50
○ 2026-02-16 01:43:30
○ 2026-07-26 16:47:44

○NSns62.worldnic.com2015-07-13 → 2016-08-04 · 4 obs

● 2015-07-13 15:50:26
● 2016-08-04 16:07:50
○ 2026-02-16 01:43:30
○ 2026-07-26 16:47:44

●NSval.ns.cloudflare.com2026-02-16 → 2026-07-26 · 3 obs

○ 2016-08-04 16:07:50
● 2026-02-16 01:43:30
● 2026-07-26 16:47:44

○MXrtca-org.mail.protection.outlook.com2015-07-13 → 2016-08-04 · 4 obs

● 2015-07-13 15:50:26
● 2016-08-04 16:07:50
○ 2026-02-16 01:43:30
○ 2026-07-26 16:47:44

●MXus-smtp-inbound-1.mimecast.com2026-02-16 → 2026-07-26 · 3 obs

○ 2016-08-04 16:07:50
● 2026-02-16 01:43:30
● 2026-07-26 16:47:44

●MXus-smtp-inbound-2.mimecast.com2026-02-16 → 2026-07-26 · 3 obs

○ 2016-08-04 16:07:50
● 2026-02-16 01:43:30
● 2026-07-26 16:47:44

●A104.21.46.2182026-02-16 → 2026-07-26 · 14 obs

○ 2016-08-04 16:07:50
● 2026-02-16 01:43:30
● 2026-03-19 09:19:58
○ 2026-03-23 03:27:48
● 2026-03-28 14:14:36
● 2026-05-14 16:35:36
○ 2026-05-21 18:52:38
● 2026-06-07 20:42:02
● 2026-06-13 20:07:00
○ 2026-06-15 22:16:18
● 2026-06-26 15:09:32
○ 2026-07-11 17:45:06
● 2026-07-21 23:40:36
● 2026-07-26 16:47:44

○A144.202.255.912015-07-13 → 2016-08-04 · 4 obs

● 2015-07-13 15:50:26
● 2016-08-04 16:07:50
○ 2026-02-16 01:43:30
○ 2026-07-26 16:47:44

●A172.67.142.2232026-02-16 → 2026-07-26 · 14 obs

○A188.114.96.02026-03-23 → 2026-07-11 · 12 obs

○ 2026-03-19 09:19:58
● 2026-03-23 03:27:48
○ 2026-03-28 14:14:36
○ 2026-05-14 16:35:36
● 2026-05-21 18:52:38
○ 2026-06-07 20:42:02
○ 2026-06-13 20:07:00
● 2026-06-15 22:16:18
○ 2026-06-26 15:09:32
● 2026-07-11 17:45:06
○ 2026-07-21 23:40:36
○ 2026-07-26 16:47:44

○A188.114.97.02026-03-23 → 2026-07-11 · 12 obs

○A2606:4700:3032::ac43:8edf2026-02-16 → 2026-06-26 · 13 obs

●A2606:4700:3034::6815:2eda2026-02-16 → 2026-07-26 · 14 obs

●A2606:4700:3036::ac43:8edf2026-07-03 → 2026-07-26 · 5 obs

○ 2026-06-26 15:09:32
● 2026-07-03 17:08:00
○ 2026-07-11 17:45:06
● 2026-07-21 23:40:36
● 2026-07-26 16:47:44

○A2a06:98c1:3120::2026-03-23 → 2026-07-11 · 12 obs

○A2a06:98c1:3121::2026-03-23 → 2026-07-11 · 12 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org	-
rtca.org	val.ns.cloudflare.com, henry.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.234

NS records: val.ns.cloudflare.com, henry.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rtca.org (unsigned zone)

⏱️ Timing

Total: 538ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.46.218, 172.67.142.223`
AAAA	2	`2606:4700:3034::6815:2eda, 2606:4700:3036::ac43:8edf`
NS	2	`henry.ns.cloudflare.com, val.ns.cloudflare.com`
MX	2	`us-smtp-inbound-1.mimecast.com (pri: 10), us-smtp-inbound-2.mimecast.com (pri: 10)`
TXT	2	`MS=ms78292262, v=spf1 include:us._netblocks.mimecast.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`henry.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

rtcamail.rtca.org and www.rtca.org are both subdomains of rtca.org.

IP Addresses

rtca.org resolves to four IP addresses: 104.21.46.218, 172.67.142.223, 2606:4700:3034::6815:2eda and 2606:4700:3036::ac43:8edf.

learnaboutbutterflies.com, gacor167login.com, turbofunds100.live and two other host names share IP numbers with rtca.org.

Name Servers

rtca.org uses two name servers for its delegation: henry.ns.cloudflare.com and val.ns.cloudflare.com.

rtca.org uses the same name servers as several other domains — among them mouvea.com, jsbm2018.com, molicdn1.site and two more.

rtca.org partially shares its NS delegation with several other domains, including lonix.net, cursoscerto.com, doritis.ru and two others.

These name servers are regularly seen alongside zainab.ns.cloudflare.com and candy.ns.cloudflare.com as name servers.

Hostnames that resolve to 6 IP addresses:

Hostname henry.ns.cloudflare.com directs to 108.162.193.176, 172.64.33.176 and 173.245.59.176 along with 3 other IP addresses.

Hostname val.ns.cloudflare.com directs to 108.162.192.234, 172.64.32.234 and 173.245.58.234 along with 3 other IP addresses.

Mail Servers

Mail for rtca.org is handled by two mail servers — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

rtca.org uses an identical mail server configuration to several other domains — among them cfstinson.com, homesure.com, chivista.com and two more.

rtca.org has at least partial mail server overlap with other domains such as alberscompany.com, creeksourcellc.com, payfone.com and two more.

Hostnames that resolve to 6 IP addresses:

Hostname us-smtp-inbound-1.mimecast.com directs to 170.10.128.141, 170.10.128.221 and 170.10.128.242 along with 3 other IP addresses.

Hostname us-smtp-inbound-2.mimecast.com directs to 170.10.128.141, 170.10.128.221 and 170.10.128.242 along with 3 other IP addresses.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.128.141 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.128.221 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.128.242 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.132.141 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.132.221 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.132.242 IP addresses each.