co - robtex.com
co
(root)
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.root-servers.net ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | c.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | d.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | e.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | f.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | g.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | h.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | i.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | j.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | k.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | l.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | m.root-servers.net ⚠️ Not in parent delegation | ||||||
| SOA | a.root-servers.netnstld@verisign-grs.com 2026-10-17 #0 | ||||||
Previously NS for
Subdomains
Same first word
Similar names
Next names
DNS History
11 records (5 active, 6 former)
●NSa.registrydns.co2026-02-16 → 2026-10-17 · 3 obs
● 2026-02-16 16:56:28
● 2026-10-17 11:18:28
●NSb.registrydns.co2026-02-16 → 2026-10-17 · 3 obs
● 2026-02-16 16:56:28
● 2026-10-17 11:18:28
●NSc.registrydns.co2026-02-16 → 2026-10-17 · 3 obs
● 2026-02-16 16:56:28
● 2026-10-17 11:18:28
●NSd.registrydns.co2026-02-16 → 2026-10-17 · 3 obs
● 2026-02-16 16:56:28
● 2026-10-17 11:18:28
●NSns0.centralnic.net2026-02-16 → 2026-10-17 · 39 obs
● 2026-02-16 16:56:28
● 2026-06-07 07:14:40
○ 2026-06-07 08:06:28
● 2026-06-07 08:52:14
● 2026-06-07 18:50:58
○ 2026-06-07 19:36:38
● 2026-06-07 20:32:06
● 2026-06-07 21:03:24
○ 2026-06-07 22:01:22
○ 2026-06-07 22:32:14
● 2026-06-08 00:22:32
● 2026-06-08 06:48:34
○ 2026-06-08 07:31:14
○ 2026-06-08 08:26:24
● 2026-06-08 09:19:56
● 2026-06-08 12:15:22
○ 2026-06-08 12:52:40
● 2026-06-08 13:37:54
● 2026-06-08 14:07:56
○ 2026-06-08 15:01:28
● 2026-06-08 15:49:24
● 2026-06-08 19:13:22
○ 2026-06-08 19:51:54
● 2026-06-08 20:39:44
● 2026-06-10 17:27:52
○ 2026-06-10 18:22:48
● 2026-06-10 18:54:46
● 2026-06-10 21:37:28
○ 2026-06-10 22:09:52
● 2026-06-10 23:14:52
● 2026-06-11 03:02:58
○ 2026-06-11 03:38:56
● 2026-06-11 04:42:42
● 2026-06-16 14:41:56
○ 2026-06-16 15:32:52
○ 2026-06-16 16:51:10
● 2026-06-16 17:23:20
● 2026-10-17 11:18:28
○NSns1.cctld.co2015-09-04 → 2022-01-12 · 4 obs
● 2022-01-12 15:34:32
○ 2026-02-16 16:56:28
○ 2026-10-17 11:18:28
○NSns2.cctld.co2015-09-04 → 2022-01-12 · 4 obs
● 2022-01-12 15:34:32
○ 2026-02-16 16:56:28
○ 2026-10-17 11:18:28
○NSns3.cctld.co2015-09-04 → 2022-01-12 · 4 obs
● 2022-01-12 15:34:32
○ 2026-02-16 16:56:28
○ 2026-10-17 11:18:28
○NSns4.cctld.co2015-09-04 → 2022-01-12 · 4 obs
● 2022-01-12 15:34:32
○ 2026-02-16 16:56:28
○ 2026-10-17 11:18:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| co | b.registrydns.co, d.registrydns.co, a.registrydns.co, c.registrydns.co | 8 records |
✅ Authoritative Response
Server:194.169.218.57
NS records: b.registrydns.co, d.registrydns.co, a.registrydns.co, c.registrydns.co
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 415ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | b.registrydns.co, d.registrydns.co... |
| SOA | 1 | ns0.centralnic.net hostmaster.centralnic |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a.registrydns.co, b.registrydns.co, c.registrydns.co...)
Analysis
Hierarchy
Under co as parent sit radiantrocks.co, recordsbase.co, institutodelclima.co, astronauti.co, mybgi.co along with hundreds of thousands of other host names.
Name Servers
The authoritative name servers for co are a.registrydns.co, b.registrydns.co, c.registrydns.co and two others.
At least some of co's name servers are shared with other domains, for example hu.net, jnj, ru.com and two more.
These name servers tend to co-occur with ns0.centralnic.net, ns1.centralnic.net, ns2.centralnic.net and 7 other name servers in the same DNS delegations.
Hosts pointing to four IP addresses:
ns0.centralnic.net directs to 54.217.78.230, 63.34.52.177, 2a05:d018:4a2:c101::150 and 2a05:d018:4a2:c102::150.
Hosts with two IP numbers each:
a.registrydns.co resolves to two addresses: 194.169.218.57 and 2001:67c:13cc::1:57.
b.registrydns.co resolves to two addresses: 185.24.64.57 and 2a04:2b00:13cc::1:57.
c.registrydns.co resolves to two addresses: 212.18.248.57 and 2a04:2b00:13ee::57.
d.registrydns.co resolves to two addresses: 212.18.249.57 and 2a04:2b00:13ff::57.