`c21rs.com`

DNSSEC	⚠️ Not signed
NS	`ophelia.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26f8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ophelia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2f8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ophelia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22f8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ophelia.ns.cloudflare.com`
		A	108.162.194.248^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ophelia.ns.cloudflare.com`
		A	162.159.38.248^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ophelia.ns.cloudflare.com`
		A	172.64.34.248^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ophelia.ns.cloudflare.com`
NS	`walt.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b94^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`walt.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c194^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`walt.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2194^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`walt.ns.cloudflare.com`
		A	108.162.193.148^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`walt.ns.cloudflare.com`
		A	172.64.33.148^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`walt.ns.cloudflare.com`
		A	173.245.59.148^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`walt.ns.cloudflare.com`
MX	`route2.mx.cloudflare.net` ⭐
		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`
MX	`route1.mx.cloudflare.net`⁽⁴⁷⁾
		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`⁽⁴⁸⁾
		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`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
SOA	`ophelia.ns.cloudflare.com`dns@cloudflare.com serial=2398859289

`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=1776194672

Same first word

c21rs.com

Similar names

crs21.com

s21rc.net

12scr.com

csr12.com

csr21.org

rsc12.ca

scr21.com

scr21.org

rcs21.com

DNS History

9 records (5 active, 4 former)

○NSns1.e-net.com2015-06-21 → 2016-10-12 · 4 obs

● 2015-06-21 03:24:06
● 2016-10-12 07:19:32
○ 2026-03-31 09:39:10
○ 2026-04-14 19:36:06

○NSns2.e-net.com2015-06-21 → 2016-10-12 · 4 obs

● 2015-06-21 03:24:06
● 2016-10-12 07:19:32
○ 2026-03-31 09:39:10
○ 2026-04-14 19:36:06

●NSophelia.ns.cloudflare.com2026-03-31 → 2026-04-14 · 3 obs

○ 2016-10-12 07:19:32
● 2026-03-31 09:39:10
● 2026-04-14 19:36:06

●NSwalt.ns.cloudflare.com2026-03-31 → 2026-04-14 · 3 obs

○ 2016-10-12 07:19:32
● 2026-03-31 09:39:10
● 2026-04-14 19:36:06

○MXmx.mailanyone.net2015-06-21 → 2016-10-12 · 4 obs

● 2015-06-21 03:24:06
● 2016-10-12 07:19:32
○ 2026-03-31 09:39:10
○ 2026-04-14 19:36:06

●MXroute1.mx.cloudflare.net2026-03-31 → 2026-04-14 · 3 obs

○ 2016-10-12 07:19:32
● 2026-03-31 09:39:10
● 2026-04-14 19:36:06

●MXroute2.mx.cloudflare.net2026-03-31 → 2026-04-14 · 3 obs

○ 2016-10-12 07:19:32
● 2026-03-31 09:39:10
● 2026-04-14 19:36:06

●MXroute3.mx.cloudflare.net2026-03-31 → 2026-04-14 · 3 obs

○ 2016-10-12 07:19:32
● 2026-03-31 09:39:10
● 2026-04-14 19:36:06

○A207.38.102.252015-06-21 → 2016-10-12 · 4 obs

● 2015-06-21 03:24:06
● 2016-10-12 07:19:32
○ 2026-03-31 09:39:10
○ 2026-04-14 19:36:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net, k.gtld-servers.net...	-
c21rs.com	walt.ns.cloudflare.com, ophelia.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.248

NS records: walt.ns.cloudflare.com, ophelia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for c21rs.com (unsigned zone)

⏱️ Timing

Total: 122ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ophelia.ns.cloudflare.com, walt.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 17), route1.mx.cloudflare.net (pri: 47)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
SOA	1	`ophelia.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

Name Servers

c21rs.com is delegated to two name servers: ophelia.ns.cloudflare.com and walt.ns.cloudflare.com.

c21rs.com uses the same name server setup as other domains such as joiningthedots.net, coolholidaylights.com, isncnet.com, kminfosystems.com and pprservices.net.

c21rs.com shares name servers with other domains at least partially, for example carlasc.com, welkincapital.com, shundiankt.com, boletour.com and photobookchile.com.

These name servers are commonly used together with kim.ns.cloudflare.com, lynn.ns.cloudflare.com, martin.ns.cloudflare.com and dion.ns.cloudflare.com.

Host names with six IP numbers: host name ophelia.ns.cloudflare.com points to: 2606:4700:50::a29f:26f8, 2803:f800:50::6ca2:c2f8, 2a06:98c1:50::ac40:22f8, 108.162.194.248, 162.159.38.248 and 172.64.34.248; host name walt.ns.cloudflare.com points to: 2606:4700:58::adf5:3b94, 2803:f800:50::6ca2:c194, 2a06:98c1:50::ac40:2194, 108.162.193.148, 172.64.33.148 and 173.245.59.148.

Mail Servers

c21rs.com is served by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

c21rs.com shares mail servers with other domains at least partially; for instance candytroop.com, mailnewsmanager.com, vmpanel.net, registry.lt and wootware.com.

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.

c21rs.com - robtex.com

c21rs.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Name Servers

Mail Servers

`c21rs.com`

`com`