`rcctulsa.org`

DNSSEC	⚠️ Not signed
NS	`mira.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3acc^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0cc^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mira.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20cc^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mira.ns.cloudflare.com`
		A	108.162.192.204^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
		A	172.64.32.204^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
		A	173.245.58.204^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
NS	`sevki.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ca4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sevki.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sevki.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sevki.ns.cloudflare.com`
		A	108.162.195.164^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sevki.ns.cloudflare.com`
		A	162.159.44.164^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sevki.ns.cloudflare.com`
		A	172.64.35.164^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sevki.ns.cloudflare.com`
MX	`route1.mx.cloudflare.net` ⭐
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽⁵⁵⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route2.mx.cloudflare.net`⁽⁶⁰⁾
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
SOA	`mira.ns.cloudflare.com`dns@cloudflare.com serial=2396534287

`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=1773551953

Similar names

strucalc.app

cultcars.ch

curlcast.ca

curlcast.s3.amazonaws.com

curlcast.net

curlcast.com

cultcars.de

strucalc.myshopify.com

strucalc.com

rustcalc.com

cultcars.com

rustcalc.lima-city.de

DNS History

12 records (5 active, 7 former)

●NSmira.ns.cloudflare.com2026-03-19 → 2026-03-19 · 3 obs

○ 2017-04-19 16:00:14
● 2026-03-19 18:46:20
● 2026-03-19 18:46:22

○NSns1.gadzoom.com2015-06-01 → 2017-04-19 · 5 obs

○ 2008-11-27 23:46:06
● 2015-06-01 02:36:34
● 2017-04-19 16:00:14
○ 2026-03-19 18:46:20
○ 2026-03-19 18:46:22

○NSns2.gadzoom.com2015-06-01 → 2017-04-19 · 5 obs

○ 2008-11-27 23:46:06
● 2015-06-01 02:36:34
● 2017-04-19 16:00:14
○ 2026-03-19 18:46:20
○ 2026-03-19 18:46:22

●NSsevki.ns.cloudflare.com2026-03-19 → 2026-03-19 · 3 obs

○ 2017-04-19 16:00:14
● 2026-03-19 18:46:20
● 2026-03-19 18:46:22

○NStbg.triadbusinessgroup.com2015-06-01 → 2017-04-19 · 5 obs

○ 2008-11-27 23:46:06
● 2015-06-01 02:36:34
● 2017-04-19 16:00:14
○ 2026-03-19 18:46:20
○ 2026-03-19 18:46:22

○MXd26553a.ess.barracudanetworks.com2015-06-01 → 2015-10-12 · 5 obs

○ 2008-11-27 23:46:06
● 2015-06-01 02:36:34
● 2015-10-12 05:06:24
○ 2016-01-03 03:53:28
○ 2026-03-19 18:46:22

○MXrcctulsa-org.mail.protection.outlook.com2016-01-03 → 2017-04-19 · 5 obs

○ 2015-10-12 05:06:24
● 2016-01-03 03:53:28
● 2017-04-19 16:00:14
○ 2026-03-19 18:46:20
○ 2026-03-19 18:46:22

●MXroute1.mx.cloudflare.net2026-03-19 → 2026-03-19 · 3 obs

○ 2017-04-19 16:00:14
● 2026-03-19 18:46:20
● 2026-03-19 18:46:22

●MXroute2.mx.cloudflare.net2026-03-19 → 2026-03-19 · 3 obs

○ 2017-04-19 16:00:14
● 2026-03-19 18:46:20
● 2026-03-19 18:46:22

●MXroute3.mx.cloudflare.net2026-03-19 → 2026-03-19 · 3 obs

○ 2017-04-19 16:00:14
● 2026-03-19 18:46:20
● 2026-03-19 18:46:22

○A104.193.8.262015-06-01 → 2015-10-12 · 5 obs

○ 2008-11-27 23:46:06
● 2015-06-01 02:36:34
● 2015-10-12 05:06:24
○ 2016-01-03 03:53:28
○ 2026-03-19 18:46:22

○A45.34.139.1022016-01-03 → 2017-04-19 · 5 obs

○ 2015-10-12 05:06:24
● 2016-01-03 03:53:28
● 2017-04-19 16:00:14
○ 2026-03-19 18:46:20
○ 2026-03-19 18:46:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
rcctulsa.org	mira.ns.cloudflare.com, sevki.ns.cloudflare.com	-

✅ Authoritative Response

Server: 108.162.192.204

NS records: mira.ns.cloudflare.com, sevki.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rcctulsa.org (unsigned zone)

⏱️ Timing

Total: 1058ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`mira.ns.cloudflare.com, sevki.ns.cloudflare.com`
MX	3	`route1.mx.cloudflare.net (pri: 18), route3.mx.cloudflare.net (pri: 55)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
SOA	1	`mira.ns.cloudflare.com dns.cloudflare.co`

Analysis

Name Servers

Two name servers mira.ns.cloudflare.com and sevki.ns.cloudflare.com are delegated to rcctulsa.org.

rcctulsa.org uses the same name server configuration as other domains, such as teleproducts.org, runsthruit.com, rallenautogroup.com, cdiruston.com and 73.232.109.in-addr.arpa.

rcctulsa.org at least partially shares name servers with other domains such as figueiralaser.com.br, pacefg.com, bethanfreedland.ru.com, electro-star.co.il and media50group.com.

Host names with six IP numbers: Host name mira.ns.cloudflare.com points to 2606:4700:50::adf5:3acc, 2803:f800:50::6ca2:c0cc, 2a06:98c1:50::ac40:20cc, 108.162.192.204, 172.64.32.204 and 173.245.58.204; host name sevki.ns.cloudflare.com points to 2606:4700:58::a29f:2ca4, 2803:f800:50::6ca2:c3a4, 2a06:98c1:50::ac40:23a4, 108.162.195.164, 162.159.44.164 and 172.64.35.164.

Mail Servers

rcctulsa.org is handled by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

rcctulsa.org shares mail servers with other domains at least in part, for instance ljlabs.net, tweason.com, catchall.so, drugrehabmanchester.com and 5-star.net.

Host names with six IP numbers:

route1.mx.cloudflare.net points to: 2606:4700:f5::b, 2606:4700:f5::c, 2606:4700:f5::d, 162.159.205.11, 162.159.205.12 and 162.159.205.13.

route2.mx.cloudflare.net points to: 2606:4700:f5::e, 2606:4700:f5::f, 2606:4700:f5::10, 162.159.205.17, 162.159.205.18 and 162.159.205.19.

route3.mx.cloudflare.net points to: 2606:4700:f5::11, 2606:4700:f5::12, 2606:4700:f5::13, 162.159.205.23, 162.159.205.24 and 162.159.205.25.

rcctulsa.org - robtex.com

rcctulsa.org

org

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Name Servers

Mail Servers

`rcctulsa.org`

`org`