`open-table.co`

DNSSEC	⚠️ Not signed
A	13.248.243.5^{🇺🇸 Amazon13.248.240.0/20}
		PTR	`a16e665f42988324c.awsglobalaccelerator.com`
A	76.223.105.230^{🇺🇸 Amazon76.223.96.0/20}
NS	`ns21.domaincontrol.com` ⭐
		A	2603:5:2141::b^{🇺🇸 GODADDY-DNS2603:5:2140::/44}
			PTR	`ns21.domaincontrol.com`
		A	97.74.100.11^{🇺🇸 GODADDY-DNS97.74.100.0/23}
			PTR	`ns21.domaincontrol.com`
NS	`ns22.domaincontrol.com`
		A	2603:5:2241::b^{🇺🇸 GODADDY-DNS2603:5:2240::/44}
			PTR	`ns22.domaincontrol.com`
		A	173.201.68.11^{🇺🇸 GODADDY-DNS173.201.68.0/23}
			PTR	`ns22.domaincontrol.com`
MX	`opentable-co01b.mail.protection.outlook.com` ⭐
TXT	`NETORG18362179.onmicrosoft.com`
TXT	`v=spf1 include:secureserver.net -all`
SOA	`ns21.domaincontrol.com`dns@jomax.net 2026-03-06 #0

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759617158

Same first word

open-table.co

open-table.biz

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	c.registrydns.co, a.registrydns.co, b.registrydns.co, d.registrydns.co	8 records
open-table.co	ns21.domaincontrol.com, ns22.domaincontrol.com	-

✅ Authoritative Response

Server:173.201.68.11

NS records: ns21.domaincontrol.com, ns22.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for open-table.co (unsigned zone)

⏱️ Timing

Total: 241ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`76.223.105.230, 13.248.243.5`
NS	2	`ns21.domaincontrol.com, ns22.domaincontrol.com`
MX	1	`opentable-co01b.mail.protection.outlook.`
TXT	2	`NETORG18362179.onmicrosoft.com, v=spf1 include:secureserver.net -all`
SOA	1	`ns21.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (d.registrydns.co, c.registrydns.co, b.registrydns.co...)

Analysis

IP Addresses

The entity open-table.co points to two IP numbers: 13.248.243.5 and 76.223.105.230.

For instance, other host names xn--serbestdal-6ub66c.com, bemyrobot.com, optcentral.com, plainyellowproductions.com and awperations.com share IP numbers with open-table.co.

Name Servers

open-table.co is delegated to two name servers: ns21.domaincontrol.com and ns22.domaincontrol.com.

open-table.co uses the same name server setup as other domains such as cafnated.com, robertmdee.com, soventol.de, transitionskbr.com and wash-hands.com.

Host names with two IP numbers:

ns21.domaincontrol.com points to 2603:5:2141::b and 97.74.100.11; ns22.domaincontrol.com points to 2603:5:2241::b and 173.201.68.11.

Mail Servers

open-table.co is handled by a single mail server, opentable-co01b.mail.protection.outlook.com.

open-table.co - robtex.com

open-table.co

co