`rnb6.co.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:3512^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:cfc5^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.53.18^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.207.197^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`apollo.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b42^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`apollo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c142^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`apollo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2142^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`apollo.ns.cloudflare.com`
		A	108.162.193.66^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`apollo.ns.cloudflare.com`
		A	172.64.33.66^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`apollo.ns.cloudflare.com`
		A	173.245.59.66^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`apollo.ns.cloudflare.com`
NS	`crystal.ns.cloudflare.com`
		A	2606:4700:50::a29f:26ca^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2ca^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`crystal.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22ca^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`crystal.ns.cloudflare.com`
		A	108.162.194.202^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
		A	162.159.38.202^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
		A	172.64.34.202^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.53.18, 172.67.207.197
		IPv6 hints	2606:4700:3030::6815:3512, 2606:4700:3032::ac43:cfc5
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=215, name=cloudflare-ech.com
SOA	`apollo.ns.cloudflare.com`dns@cloudflare.com serial=2405186918

`co.com`

	DNSSEC	⚠️ Not signed
	A	169.60.151.232^{🇺🇸 SOFTLAYER169.60.128.0/18 -dal13}
	NS	`ns0.nic.co.com` ⭐
	NS	`ns1.nic.co.com`
	NS	`ns2.nic.co.com`
	NS	`ns3.nic.co.com`
	NS	`ns4.nic.co.com`
	MX	`mx.spamexperts.com` ⭐
	MX	`fallbackmx.spamexperts.eu`⁽²⁰⁾
	MX	`lastmx.spamexperts.net`⁽³⁰⁾
	TXT	`google-site-verification=7OcubotXUUSYYCSil8JjPJ_2uxorUHKIpmbUGsV_caA`
	TXT	`v=spf1 mx ip4:169.60.151.232 ip4:184.172.61.109 ip4:169.60.163.139 ip4:169.60...`
	SOA	`ns0.nic.co.com`hostmaster@co.com serial=2014418222

rank #551 globally
rank #323 in the tld

co.com

Co.com is a domain platform that offers.comdomain owners with second-level names ending in "co" the ability to promote a shorter branded web address, and it is also known as a premium/generic domain marketed for businesses seeking a short, brandable ".co"-style name while keeping the trusted.comTLD.

Key facts

Owner / operator: Neustar (historically); domain has changed hands among registry/marketing operators over time — current operator unknown with certainty
TLD:.com— gTLD
Primary purpose: branded short-domain / business identity marketing (positioned as an alternative to.coccTLD names)
Status: active

Related domains

.co— the Colombian ccTLD that is marketed globally as a generic "company/corporation" alias, conceptually related to the co.com branding proposition

📈 Tranco rank: #2,393

Same first word

rnb6.co.com

Similar names

b6rn.com

DNS History

6 records (6 active, 0 former)

●NSapollo.ns.cloudflare.com2026-06-12 → 2026-07-11 · 2 obs

● 2026-06-12 18:15:58
● 2026-07-11 01:25:42

●NScrystal.ns.cloudflare.com2026-06-12 → 2026-07-11 · 2 obs

● 2026-06-12 18:15:58
● 2026-07-11 01:25:42

●A104.21.53.182026-06-12 → 2026-07-11 · 2 obs

● 2026-06-12 18:15:58
● 2026-07-11 01:25:42

●A172.67.207.1972026-06-12 → 2026-07-11 · 2 obs

● 2026-06-12 18:15:58
● 2026-07-11 01:25:42

●A2606:4700:3030::6815:35122026-06-12 → 2026-07-11 · 2 obs

● 2026-06-12 18:15:58
● 2026-07-11 01:25:42

●A2606:4700:3032::ac43:cfc52026-06-12 → 2026-07-11 · 2 obs

● 2026-06-12 18:15:58
● 2026-07-11 01:25:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
co.com	ns1.nic.co.com, ns2.nic.co.com, ns3.nic.co.com, ns4.nic.co.com	8 records
rnb6.co.com	apollo.ns.cloudflare.com, crystal.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.202

NS records: apollo.ns.cloudflare.com, crystal.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rnb6.co.com (unsigned zone)

⏱️ Timing

Total: 440ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.53.18, 172.67.207.197`
AAAA	2	`2606:4700:3032::ac43:cfc5, 2606:4700:3030::6815:3512`
NS	2	`apollo.ns.cloudflare.com, crystal.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`apollo.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (ns1.nic.co.com, ns1.nic.co.com, ns2.nic.co.com...)

Analysis

IP Addresses

rnb6.co.com points to the four IP addresses 104.21.53.18, 172.67.207.197, 2606:4700:3030::6815:3512 and 2606:4700:3032::ac43:cfc5.

Two other host names, along with www.gaxqjyzx.cn, reall.com.br and anapa-parusa.ru, also share IP numbers with rnb6.co.com.

Name Servers

rnb6.co.com uses two name servers for its delegation: apollo.ns.cloudflare.com and crystal.ns.cloudflare.com.

rnb6.co.com shares its NS records with other domains, for example aktivisbetqqgacor.online, depanmed188.website, legitotoin.com and two others.

The name servers of rnb6.co.com overlap at least partially with those of other domains — among them pchretailltd.com, lisborg.dk, pleasantondriversed.com and two more.

These name servers commonly appear alongside the name servers thaddeus.ns.cloudflare.com and lucy.ns.cloudflare.com.

DNS names with 6 IP addresses:

Hostname apollo.ns.cloudflare.com directs to 108.162.193.66, 172.64.33.66 and 173.245.59.66 along with 3 other IP addresses.

Hostname crystal.ns.cloudflare.com directs to 108.162.194.202, 162.159.38.202 and 172.64.34.202 along with 3 other IP addresses.

rnb6.co.com - robtex.com

rnb6.co.com

co.com

co.com

Key facts

Related domains

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

`rnb6.co.com`

`co.com`