jcubei.com - dns.ninja
jcubei.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 117.52.115.89🇰🇷 JOONGANGLIBO-AS-KR117.52.115.0/24 | ||||||
| NS | ns2.joins.com ⭐ | ||||||
| A | 220.73.163.222🇰🇷 KT-NET220.72.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| NS | ns.joins.com | ||||||
| A | 218.145.68.111🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| PTR | joins076.joins.com | ||||||
| NS | ns.joongang.co.kr | ||||||
| A | 203.249.157.1🇰🇷 JOONGANGLIBO-AS-KR203.249.157.0/24 | ||||||
| NS | ns2.joongang.co.kr | ||||||
| A | 220.73.140.230🇰🇷 KT-NET220.72.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| MX | smtp.jcubei.com ⭐ | ||||||
| A | 220.73.140.151🇰🇷 KT-NET220.72.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| PTR | webmail1.joins.com | ||||||
| TXT | v=spf1 ip4:220.73.140.155 ~all | ||||||
| SOA | ns.joins.comdnsadmin@joins.com 2026-06-15 #1 | ||||||
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=1785505012 | ||||||
Subdomains
smtp.jcubei.com |
Same first word
jcubei.com |
Similar names
DNS History
7 records (6 active, 1 former)
●NSns.joongang.co.kr2026-03-06 → 2026-07-31 · 3 obs
● 2026-03-06 14:20:14
● 2026-07-31 13:49:10
●NSns2.joongang.co.kr2026-03-06 → 2026-07-31 · 3 obs
● 2026-03-06 14:20:14
● 2026-07-31 13:49:10
●MXsmtp.jcubei.com2015-08-11 → 2026-07-31 · 2 obs
● 2026-07-31 13:49:10
●A117.52.115.892026-06-28 → 2026-07-31 · 3 obs
● 2026-06-28 11:34:20
● 2026-07-31 13:49:10
○A218.145.68.1872015-08-11 → 2026-05-15 · 4 obs
● 2026-05-15 04:15:24
○ 2026-06-28 11:34:20
○ 2026-07-31 13:49:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, g.gtld-servers.net... | - |
| jcubei.com | ns.joins.com, ns2.joins.com, ns.joongang.co.kr, ns2.joongang.co.kr | 2 records |
✅ Authoritative Response
Server:220.73.140.230
NS records: ns.joins.com, ns2.joins.com, ns.joongang.co.kr, ns2.joongang.co.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jcubei.com (unsigned zone)
⏱️ Timing
Total: 718ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 117.52.115.89 |
| NS | 4 | ns.joins.com, ns.joongang.co.kr... |
| MX | 1 | smtp.jcubei.com (pri: 0) |
| TXT | 1 | v=spf1 ip4:220.73.140.155 ~all |
| SOA | 1 | ns.joins.com dnsadmin.joins.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns.joins.com, ns2.joins.com)
Analysis
Hierarchy
smtp.jcubei.com is delegated beneath jcubei.com.
IP Addresses
jcubei.com resolves to just one IP address, 117.52.115.89.
Two other host names, along with jcontentree.com, jmembership.com and monair.jtbc.joins.com, also share IP numbers with jcubei.com.
Name Servers
The NS records for jcubei.com point to four name servers: ns2.joins.com, ns.joins.com, ns2.joongang.co.kr and ns.joongang.co.kr.
There is at least partial name server overlap between jcubei.com and other domains — jtbcworldwide.com, elle.co.kr, runable.io and two more among them.
The hosts ns2.joins.com, ns.joins.com, ns2.joongang.co.kr and ns.joongang.co.kr all resolve to exactly one IP address each: 220.73.163.222, 218.145.68.111, 220.73.140.230 and 203.249.157.1 respectively.
Mail Servers
The sole mail server for jcubei.com is smtp.jcubei.com.
smtp.jcubei.com carries a single IP number, which is 220.73.140.151.