jbcitygas.com - robtex.com
jbcitygas.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 121.184.223.13🇰🇷 KT-NET121.184.0.0/13 | ||||||
| NS | ns2.kornet.net ⭐ | ||||||
| A | 211.216.50.160🇰🇷 KT-NET211.216.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| PTR | ns2.kornet.net | ||||||
| NS | ns.kornet.net | ||||||
| A | 211.216.50.150🇰🇷 KT-NET211.216.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| PTR | ns.kornet.net | ||||||
| MX | jbcorp.cloudmailgate.co.kr ⭐ | ||||||
| A | 183.111.253.132🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM | ||||||
| PTR | jbcorp.cloudmailgate.co.kr | ||||||
| TXT | v=spf1 ip4:121.184.223.52 ip4:121.184.223.156 ip4:121.184.223.53 ip4:121.184.... | ||||||
| TXT | _loqjnsysmf2rptpbixrhhjdr32c8f97 | ||||||
| TXT | ms=ms22573044 | ||||||
| SOA | ns.kornet.netdomain@ns.kornet.net 2026-03-18 #0 | ||||||
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=1778629591 | ||||||
Subdomains
Same first word
jbcitygas.com |
jbcitygas.co.kr |
jbcitygas.net |
DNS History
5 records (4 active, 1 former)
●NSns.kornet.net2015-07-03 → 2026-05-12 · 2 obs
● 2026-05-12 23:47:34
●NSns2.kornet.net2015-07-03 → 2026-05-12 · 2 obs
● 2026-05-12 23:47:34
●MXjbcorp.cloudmailgate.co.kr2026-04-29 → 2026-05-12 · 3 obs
● 2026-04-29 09:44:38
● 2026-05-12 23:47:34
○MXspam.jbcitygas.com2015-07-03 → 2017-02-11 · 4 obs
● 2017-02-11 20:00:52
○ 2026-04-29 09:44:38
○ 2026-05-12 23:47:34
●A121.184.223.132015-07-03 → 2026-05-12 · 2 obs
● 2026-05-12 23:47:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| jbcitygas.com | ns.kornet.net, ns2.kornet.net | - |
✅ Authoritative Response
Server:211.216.50.150
NS records: ns.kornet.net, ns2.kornet.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jbcitygas.com (unsigned zone)
⏱️ Timing
Total: 1073ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 121.184.223.13 |
| NS | 2 | ns2.kornet.net, ns.kornet.net |
| MX | 1 | jbcorp.cloudmailgate.co.kr (pri: 10) |
| TXT | 3 | v=spf1 ip4:121.184.223.52 ip4:121.184.22, _loqjnsysmf2rptpbixrhhjdr32c8f97... |
| SOA | 1 | ns.kornet.net domain.ns.kornet.net |
Analysis
Hierarchy
jbcitygas.com is a parent of www.jbcitygas.com and spam.jbcitygas.com.
IP Addresses
jbcitygas.com points to IP number 121.184.223.13.
Other host names, for example cbcitygas.cbcitygas.co.kr and cbcitygas.co.kr, share IPs with jbcitygas.com.
Name Servers
jbcitygas.com is delegated to two name servers: ns2.kornet.net and ns.kornet.net.
jbcitygas.com uses the same name server setup as other domains such as steela.com, ktschool.co.kr, tta.or.kr, mobis-as.com and jw-pharma.co.kr.
jbcitygas.com shares name servers with other domains at least partially, for example ajou.kr, lottedfs.com, dry-finish.com, symc21.com and s-mail.co.kr.
these name servers are often used with the following: ns2.kornet.ne.kr, xns2.hananet.net, dr-sndxpa1p.shinhan.com, dr-sndxpa2p.shinhan.com, ns.shinhan.com, sndxpa1p.shinhan.com, sndxpa2p.shinhan.com, ns2.lgdacom.net, ns2.bccard.co.kr and ns.bccard.co.kr.
Host names with one IP number:
ns2.kornet.net points to: 211.216.50.160.
ns.kornet.net points to: 211.216.50.150.
Mail Servers
jbcitygas.com is handled by a single mail server, jbcorp.cloudmailgate.co.kr.
The mail server setup of jbcitygas.com is the same as that of other domains, for instance jbcorporation.com.
jbcorp.cloudmailgate.co.kr points to a single IP: 183.111.253.132.