iusb.co.kr - robtex.com
iusb.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=2607160559 | ||||||
Subdomains
webmail.iusb.co.kr |
Same first word
Similar names
DNS History
9 records (6 active, 3 former)
●NShns1.nsgodo.com2017-03-18 → 2026-07-16 · 3 obs
● 2017-03-18 10:49:22
● 2026-07-16 01:20:10
●NShns2.nsgodo.com2017-03-18 → 2026-07-16 · 3 obs
● 2017-03-18 10:49:22
● 2026-07-16 01:20:10
○NSnsgodo.com2015-08-18 → 2016-02-24 · 4 obs
● 2016-02-24 18:53:42
○ 2017-03-18 10:49:22
○ 2026-07-16 01:20:10
○NSnsgodo.net2015-08-18 → 2016-02-24 · 4 obs
● 2016-02-24 18:53:42
○ 2017-03-18 10:49:22
○ 2026-07-16 01:20:10
●NSsns1.nsgodo.com2026-06-29 → 2026-07-16 · 3 obs
● 2026-06-29 14:23:34
● 2026-07-16 01:20:10
●NSsns2.nsgodo.com2026-06-29 → 2026-07-16 · 3 obs
● 2026-06-29 14:23:34
● 2026-07-16 01:20:10
●MXwebmail.iusb.co.kr2015-08-18 → 2026-07-16 · 2 obs
● 2026-07-16 01:20:10
●A211.233.50.2282026-06-29 → 2026-07-16 · 3 obs
● 2026-06-29 14:23:34
● 2026-07-16 01:20:10
○A211.233.50.2452015-08-18 → 2017-08-09 · 4 obs
● 2017-08-09 10:21:12
○ 2026-06-29 14:23:34
○ 2026-07-16 01:20:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | b.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr... | 10 records |
| iusb.co.kr | sns2.nsgodo.com, sns1.nsgodo.com | - |
✅ Authoritative Response
Server:211.233.50.3
NS records: sns2.nsgodo.com, sns1.nsgodo.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for iusb.co.kr (unsigned zone)
⏱️ Timing
Total: 2139ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 211.233.50.228 |
| NS | 2 | hns2.nsgodo.com, hns1.nsgodo.com |
| MX | 1 | webmail.iusb.co.kr (pri: 10) |
| TXT | 1 | v=spf1 ip4:211.233.50.228 ip4:211.233.50 |
| SOA | 1 | hns1.nsgodo.com iusb.co.kr.iusb.co.kr |
📌 Glue Records Collected
Total: 10
In-bailiwick: 10 (b.dns.kr, c.dns.kr, d.dns.kr...)
Analysis
Hierarchy
webmail.iusb.co.kr is a subdomain of iusb.co.kr.
IP Addresses
iusb.co.kr points to a single IP number: 211.233.50.228.
Additional host names — qten.co.kr, www.pullhyanggi.com, ad7.kr and two others — share IP numbers with iusb.co.kr.
Name Servers
iusb.co.kr has four authoritative name servers: hns1.nsgodo.com, hns2.nsgodo.com, sns1.nsgodo.com and sns2.nsgodo.com.
The name servers of iusb.co.kr overlap at least partially with those of other domains — among them dantee.co.kr, soomedicos.co.kr, madeedam.com and two more.
These name servers commonly co-occur with the name servers nsgodo.com, nsgodo.net, dns1.nsgodo.com and dns2.nsgodo.com.
hns1.nsgodo.com, hns2.nsgodo.com, sns1.nsgodo.com and sns2.nsgodo.com each resolve to three IP addresses. hns1.nsgodo.com resolves to 121.254.254.3, 180.210.127.112 and 180.210.127.113. hns2.nsgodo.com resolves to 121.254.254.3, 211.233.50.4 and 211.233.51.3. sns1.nsgodo.com resolves to 180.210.127.111, 211.233.50.3 and 211.233.50.4. sns2.nsgodo.com resolves to 121.254.254.3, 180.210.127.113 and 211.233.51.3.
hns1.nsgodo.com, hns2.nsgodo.com and sns2.nsgodo.com are host names that all point to 121.254.254.3.
These two host names — hns1.nsgodo.com and sns2.nsgodo.com — each point to 180.210.127.113 IP addresses.
These two host names — hns2.nsgodo.com and sns1.nsgodo.com — each point to 211.233.50.4 IP addresses.
These two host names — hns2.nsgodo.com and sns2.nsgodo.com — each point to 211.233.51.3 IP addresses.
Mail Servers
iusb.co.kr has one mail server: webmail.iusb.co.kr.
There is one IP number for webmail.iusb.co.kr: 211.233.50.40.