4do.co.kr - robtex.com
4do.co.kr
co.kr
| DNSSEC | ⚠️ Not signed | ||||||
| NS | g.dns.kr ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | c.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | d.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | e.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | f.dns.kr ⚠️ Not in parent delegation | ||||||
| SOA | g.dns.krdomain-manager@nic.or.kr serial=2607140918 | ||||||
Same first word
Similar names
d4o.info |
d4o.ru |
4od.net |
4od.tv |
4od.co.uk |
do4.co |
d4o.com |
4od.com |
d4o.net |
4od.org.uk |
od4.org |
4od.de |
o4d.com |
4od.mobi |
do4.de |
do4.us |
od4.info |
od4.ru |
do4.cn |
do4.com |
d4o.ch |
4od.biz |
do4.me |
o4d.org |
d4o.de |
DNS History
5 records (5 active, 0 former)
●NSapollo.ns.cloudflare.com2026-06-01 → 2026-07-14 · 2 obs
● 2026-07-14 10:49:08
●NSautumn.ns.cloudflare.com2026-06-01 → 2026-07-14 · 2 obs
● 2026-07-14 10:49:08
●MXkr1-aspmx1.worksmobile.com2026-06-01 → 2026-07-14 · 2 obs
● 2026-07-14 10:49:08
●MXkr1-aspmx2.worksmobile.com2026-06-01 → 2026-07-14 · 2 obs
● 2026-07-14 10:49:08
●A218.154.193.42026-06-01 → 2026-07-14 · 2 obs
● 2026-07-14 10:49:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | c.dns.kr, e.dns.kr, d.dns.kr, g.dns.kr... | - |
| 4do.co.kr | autumn.ns.cloudflare.com, apollo.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.66
NS records: autumn.ns.cloudflare.com, apollo.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 4do.co.kr (unsigned zone)
⏱️ Timing
Total: 1501ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 218.154.193.4 |
| NS | 2 | apollo.ns.cloudflare.com, autumn.ns.cloudflare.com |
| MX | 2 | kr1-aspmx1.worksmobile.com (pri: 10), kr1-aspmx2.worksmobile.com (pri: 20) |
| TXT | 1 | v=spf1 ip4:218.154.193.4 ip4:222.119.56. |
| SOA | 1 | apollo.ns.cloudflare.com dns.cloudflare. |
Analysis
IP Addresses
4do.co.kr has exactly one IP address — 218.154.193.4.
m.onjapan.co.kr, www.japan24.co.kr, japan24.co.kr plus two other host names have IP numbers in common with 4do.co.kr.
Name Servers
4do.co.kr is delegated to two name servers: apollo.ns.cloudflare.com and autumn.ns.cloudflare.com.
The name server configuration of 4do.co.kr is shared with other domains, for instance interplanet.co.kr, bidtong.co.kr, jjapan.co.kr and two others.
There is at least partial name server overlap between 4do.co.kr and other domains — movefraservalley.com, jvernau.com, express-u.net and two more among them.
These name servers frequently co-occur with the name servers crystal.ns.cloudflare.com and lucy.ns.cloudflare.com.
Hosts with 6 IP addresses each:
apollo.ns.cloudflare.com resolves to 108.162.193.66, 172.64.33.66, 173.245.59.66 and 3 other IP addresses.
autumn.ns.cloudflare.com resolves to 108.162.194.148, 162.159.38.148, 172.64.34.148 and 3 other IP addresses.
Mail Servers
4do.co.kr uses two mail servers, kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com.
The mail server setup of 4do.co.kr matches that of other domains such as tiba.co.kr, dontori.com, br-factory.com and two others.
At least some of the mail servers used by 4do.co.kr are shared with other domains: f-use.co.kr, rgblab.kr, tkent.kr and two others among them.
kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com both resolve to the same single IP address: 125.209.209.251.
kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com are host names that each point to 125.209.209.251 IP addresses.