`os-rc.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:4f9b^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:9275^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.79.155^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.146.117^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`doug.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b9f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`doug.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`doug.ns.cloudflare.com`
		A	108.162.193.159^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
		A	172.64.33.159^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
		A	173.245.59.159^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
NS	`lia.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ab9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lia.ns.cloudflare.com`
		A	108.162.192.185^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lia.ns.cloudflare.com`
		A	172.64.32.185^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lia.ns.cloudflare.com`
		A	173.245.58.185^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lia.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.79.155, 172.67.146.117
		IPv6	2606:4700:3031::6815:4f9b, 2606:4700:3036::ac43:9275
SOA	`doug.ns.cloudflare.com`dns@cloudflare.com serial=2398865449

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774996982

Previously MX for

os-rc.com

Same first word

os-rc.com

Similar names

osc-r.net

crs-o.com

o-scr.com

sr-co.net

co-rs.com

sr-co.co.jp

c-ros.com

rs-co.ir

r-cos.com

ro-cs.com

rs-co.com

ros-c.ru

sr-co.com

sc-or.org

co-rs.ws

cs-ro.ro

oc-sr.com

ocs-r.com

osc-r.com

s-cor.com

DNS History

14 records (6 active, 8 former)

●NSdoug.ns.cloudflare.com2026-02-17 → 2026-03-31 · 3 obs

○ 2016-12-24 06:54:04
● 2026-02-17 17:40:12
● 2026-03-31 23:04:00

●NSlia.ns.cloudflare.com2026-02-17 → 2026-03-31 · 3 obs

○ 2016-12-24 06:54:04
● 2026-02-17 17:40:12
● 2026-03-31 23:04:00

○NSns09.domaincontrol.com2016-02-27 → 2016-12-24 · 5 obs

○ 2015-11-30 07:48:36
● 2016-02-27 11:36:02
● 2016-12-24 06:54:04
○ 2026-02-17 17:40:12
○ 2026-03-31 23:04:00

○NSns1.justhost.com2015-08-24 → 2015-11-30 · 4 obs

● 2015-08-24 12:41:20
● 2015-11-30 07:48:36
○ 2016-02-27 11:36:02
○ 2026-03-31 23:04:00

○NSns10.domaincontrol.com2016-02-27 → 2016-12-24 · 5 obs

○ 2015-11-30 07:48:36
● 2016-02-27 11:36:02
● 2016-12-24 06:54:04
○ 2026-02-17 17:40:12
○ 2026-03-31 23:04:00

○NSns2.justhost.com2015-08-24 → 2015-11-30 · 4 obs

● 2015-08-24 12:41:20
● 2015-11-30 07:48:36
○ 2016-02-27 11:36:02
○ 2026-03-31 23:04:00

○MXmail.os-rc.com2015-08-24 → 2015-11-30 · 4 obs

● 2015-08-24 12:41:20
● 2015-11-30 07:48:36
○ 2016-02-27 11:36:02
○ 2026-03-31 23:04:00

○MXos-rc.com2016-02-27 → 2016-12-24 · 5 obs

○ 2015-11-30 07:48:36
● 2016-02-27 11:36:02
● 2016-12-24 06:54:04
○ 2026-02-17 17:40:12
○ 2026-03-31 23:04:00

●A104.21.79.1552026-02-17 → 2026-03-31 · 3 obs

○ 2016-12-24 06:54:04
● 2026-02-17 17:40:12
● 2026-03-31 23:04:00

●A172.67.146.1172026-02-17 → 2026-03-31 · 3 obs

○ 2016-12-24 06:54:04
● 2026-02-17 17:40:12
● 2026-03-31 23:04:00

○A173.254.28.562015-08-24 → 2015-11-30 · 4 obs

● 2015-08-24 12:41:20
● 2015-11-30 07:48:36
○ 2016-02-27 11:36:02
○ 2026-03-31 23:04:00

●A2606:4700:3031::6815:4f9b2026-02-17 → 2026-03-31 · 3 obs

○ 2016-12-24 06:54:04
● 2026-02-17 17:40:12
● 2026-03-31 23:04:00

●A2606:4700:3036::ac43:92752026-02-17 → 2026-03-31 · 3 obs

○ 2016-12-24 06:54:04
● 2026-02-17 17:40:12
● 2026-03-31 23:04:00

○A78.107.238.1572016-02-27 → 2016-12-24 · 5 obs

○ 2015-11-30 07:48:36
● 2016-02-27 11:36:02
● 2016-12-24 06:54:04
○ 2026-02-17 17:40:12
○ 2026-03-31 23:04:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net...	-
os-rc.com	doug.ns.cloudflare.com, lia.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.159

NS records: doug.ns.cloudflare.com, lia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for os-rc.com (unsigned zone)

⏱️ Timing

Total: 135ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.146.117, 104.21.79.155`
AAAA	2	`2606:4700:3031::6815:4f9b, 2606:4700:3036::ac43:9275`
NS	2	`doug.ns.cloudflare.com, lia.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`doug.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (doug.ns.cloudflare.com, doug.ns.cloudflare.com, doug.ns.cloudflare.com...)

Analysis

IP Addresses

os-rc.com maps to four IP numbers: 2606:4700:3031::6815:4f9b, 2606:4700:3036::ac43:9275, 104.21.79.155 and 172.67.146.117.

Other host names, for instance 6363wilshire.com, msof.nz, mx.t2tc.com, klinikapollo.com and carlo-88mexur.biz share IP numbers with os-rc.com.

Name Servers

Two name servers doug.ns.cloudflare.com and lia.ns.cloudflare.com handle delegation for os-rc.com.

os-rc.com uses the same name server setup as other domains, for example climatefeedback.org, buyu06.com, cynthiathielen.com, seder.app and buyu25.com.

os-rc.com partially shares name servers with other domains; examples include myvetpetclinic.com, delta.li, sfi.com.tw, tvbh.cn and rbli.co.uk.

these name servers are commonly used with the name servers chan.ns.cloudflare.com.

Host names with six IP numbers: doug.ns.cloudflare.com points to: 2606:4700:58::adf5:3b9f, 2803:f800:50::6ca2:c19f, 2a06:98c1:50::ac40:219f, 108.162.193.159, 172.64.33.159 and 173.245.59.159; lia.ns.cloudflare.com points to: 2606:4700:50::adf5:3ab9, 2803:f800:50::6ca2:c0b9, 2a06:98c1:50::ac40:20b9, 108.162.192.185, 172.64.32.185 and 173.245.58.185.

os-rc.com - robtex.com

os-rc.com

com

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`os-rc.com`

`com`