dco.com - dns.ninja
dco.com
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.netnstld@verisign-grs.com serial=1786418029 | ||||||
Subdomains
Same first word
Similar names
DNS History
15 records (9 active, 6 former)
●NSns-1318.awsdns-36.org2026-02-15 → 2026-08-11 · 3 obs
● 2026-02-15 15:06:26
● 2026-08-11 03:35:34
●NSns-1733.awsdns-24.co.uk2026-02-15 → 2026-08-11 · 3 obs
● 2026-02-15 15:06:26
● 2026-08-11 03:35:34
●NSns-70.awsdns-08.com2026-02-15 → 2026-08-11 · 3 obs
● 2026-02-15 15:06:26
● 2026-08-11 03:35:34
●NSns-900.awsdns-48.net2026-02-15 → 2026-08-11 · 3 obs
● 2026-02-15 15:06:26
● 2026-08-11 03:35:34
●NSns.gabia.co.kr2015-08-23 → 2026-08-11 · 2 obs
● 2026-08-11 03:35:34
○NSns.gabia.co.kr.dco.com2015-08-23 → 2017-01-29 · 4 obs
● 2017-01-29 10:56:30
○ 2021-10-30 19:27:30
○ 2026-08-11 03:35:34
●NSns1.gabia.co.kr2015-08-23 → 2026-08-11 · 2 obs
● 2026-08-11 03:35:34
●MXdco-com.mail.protection.outlook.com2026-02-15 → 2026-08-11 · 5 obs
● 2026-02-15 15:06:26
○ 2026-07-21 15:56:06
● 2026-08-04 05:29:56
● 2026-08-11 03:35:34
○MXmail1.dco.com2015-08-23 → 2021-10-30 · 4 obs
● 2021-10-30 19:27:30
○ 2026-02-15 15:06:26
○ 2026-08-11 03:35:34
○MXmail2.dco.com2015-08-23 → 2021-10-30 · 4 obs
● 2021-10-30 19:27:30
○ 2026-02-15 15:06:26
○ 2026-08-11 03:35:34
○A121.133.165.652017-01-20 → 2017-01-29 · 5 obs
● 2017-01-20 10:42:28
● 2017-01-29 10:56:30
○ 2021-10-30 19:27:30
○ 2026-08-11 03:35:34
●A121.156.99.1312021-10-30 → 2026-08-11 · 5 obs
● 2021-10-30 19:27:30
○ 2026-07-21 15:56:06
● 2026-08-04 05:29:56
● 2026-08-11 03:35:34
○A198.185.159.1442015-08-23 → 2015-12-20 · 4 obs
● 2015-12-20 08:09:30
○ 2016-03-18 14:35:36
○ 2026-08-11 03:35:34
○A211.189.165.1062016-03-18 → 2016-05-10 · 5 obs
● 2016-03-18 14:35:36
● 2016-05-10 11:27:48
○ 2017-01-20 10:42:28
○ 2026-08-11 03:35:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net... | - |
| dco.com | ns.gabia.co.kr, ns1.gabia.co.kr, ns.gabia.net, ns-70.awsdns-08.com... | 2 records |
✅ Authoritative Response
Server:205.251.192.70
NS records: ns.gabia.co.kr, ns1.gabia.co.kr, ns.gabia.net, ns-70.awsdns-08.com, ns-900.awsdns-48.net, ns-1733.awsdns-24.co.uk, ns-1318.awsdns-36.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dco.com (unsigned zone)
⏱️ Timing
Total: 1123ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 121.156.99.131 |
| NS | 3 | ns.gabia.co.kr, ns1.gabia.co.kr... |
| MX | 1 | dco-com.mail.protection.outlook.com (pri |
| TXT | 6 | MS=F440221106266C6D4A8E5E82DFB138A1553DE, MS=ms69881389... |
| SOA | 1 | ns-900.awsdns-48.net awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-70.awsdns-08.com, ns-70.awsdns-08.com)
Analysis
Hierarchy
dco.com is the parent domain of mail1.dco.com, com.dco.com, mail2.dco.com and mail.dco.com.
IP Addresses
dco.com directs to one IP number, which is 121.156.99.131.
Host names such as fint.co.kr and www.fint.co.kr share IP numbers with dco.com.
Name Servers
DNS for dco.com is handled by 7 name servers: ns-70.awsdns-08.com, ns-900.awsdns-48.net, ns.gabia.net and 4 others.
dco.com shares at least some of its name servers with other domains, including pashop.kr, d49e6c76d0c1c40eaa4fdbe332ede6cdc4927c0ebed08a310e42b0e24f84fff.link, keedarin.com and two others.
These name servers are routinely co-deployed with the name servers ns1.gabia.co.kr, ns.gabia.co.kr, ns-1318.awsdns-36.org and two others.
Hosts with two IP numbers each:
ns-70.awsdns-08.com has two IP addresses: 205.251.192.70 and 2600:9000:5300:4600::1.
ns-900.awsdns-48.net has two IP addresses: 205.251.195.132 and 2600:9000:5303:8400::1.
ns.gabia.net has two IP addresses: 121.78.117.39 and 211.234.124.90.
ns-1318.awsdns-36.org has two IP addresses: 205.251.197.38 and 2600:9000:5305:2600::1.
ns-1733.awsdns-24.co.uk has two IP addresses: 205.251.198.197 and 2600:9000:5306:c500::1.
Hosts that resolve to one IP address:
ns1.gabia.co.kr directs to 20.200.205.248.
ns.gabia.co.kr directs to 43.201.170.100.
Mail Servers
dco.com routes its mail through a single mail server, dco-com.mail.protection.outlook.com.
The host dco-com.mail.protection.outlook.com directs to four IP numbers: 52.101.153.0, 52.101.153.1, 52.101.153.2 and 52.101.155.0.