cntrnt.com - robtex.com
cntrnt.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 112.175.63.112🇰🇷 KT-NET112.168.0.0/13 | ||||||
| PTR | mail.cntrnt.com | ||||||
| PTR | mail.g5co.com | ||||||
| PTR | mail.kotline.com | ||||||
| PTR | mail.samilkorea.com | ||||||
| PTR | mail6.ktns2.kr | ||||||
| PTR | mail.ciglobal.co.kr | ||||||
| NS | ns1.lxn.co.kr ⭐ | ||||||
| A | 49.238.193.42🇰🇷 MARK1-AS-KR49.238.192.0/19 LX prefix | ||||||
| NS | ns2.lxn.co.kr | ||||||
| A | 49.236.176.11🇰🇷 HYOSUNGITX-AS-KR49.236.176.0/20 SejongTelecom.co.ltd | ||||||
| MX | mail4.ktns2.kr ⭐ | ||||||
| A | 112.175.63.120🇰🇷 KT-NET112.168.0.0/13 | ||||||
| PTR | jiwooint.com | ||||||
| PTR | mail.with-cam.com | ||||||
| PTR | mail4.ktns2.kr | ||||||
| PTR | smtp.prolinelogic.co.kr | ||||||
| TXT | v=spf1 ip4:112.175.63.112 ip4:112.175.138.243 ip4:112.175.138.233 ip4:112.175... | ||||||
| SOA | ns1.lxn.co.krpostmaster@lxn.co.kr 2025-09-20 #2 | ||||||
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=1774372982 | ||||||
Subdomains
mail.cntrnt.com |
Same first word
cntrnt.com |
DNS History
7 records (4 active, 3 former)
○NSns1.linex.kr2015-08-01 → 2017-07-08 · 4 obs
● 2017-07-08 10:52:06
○ 2026-03-15 23:25:36
○ 2026-03-24 17:37:00
●NSns1.lxn.co.kr2026-03-15 → 2026-03-24 · 3 obs
● 2026-03-15 23:25:36
● 2026-03-24 17:37:00
○NSns2.linex.kr2015-08-01 → 2017-07-08 · 4 obs
● 2017-07-08 10:52:06
○ 2026-03-15 23:25:36
○ 2026-03-24 17:37:00
●NSns2.lxn.co.kr2026-03-15 → 2026-03-24 · 3 obs
● 2026-03-15 23:25:36
● 2026-03-24 17:37:00
○MXmail.cntrnt.com2015-08-01 → 2017-07-08 · 4 obs
● 2017-07-08 10:52:06
○ 2026-03-15 23:25:36
○ 2026-03-24 17:37:00
●MXmail4.ktns2.kr2026-03-15 → 2026-03-24 · 3 obs
● 2026-03-15 23:25:36
● 2026-03-24 17:37:00
●A112.175.63.1122015-08-01 → 2026-03-24 · 2 obs
● 2026-03-24 17:37:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, h.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net... | - |
| cntrnt.com | ns1.lxn.co.kr, ns2.lxn.co.kr | - |
✅ Authoritative Response
Server:49.238.193.42
NS records: ns1.lxn.co.kr, ns2.lxn.co.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cntrnt.com (unsigned zone)
⏱️ Timing
Total: 1096ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 112.175.63.112 |
| NS | 2 | ns2.lxn.co.kr, ns1.lxn.co.kr |
| MX | 1 | mail4.ktns2.kr (pri: 10) |
| TXT | 1 | v=spf1 ip4:112.175.63.112 ip4:112.175.13 |
| SOA | 1 | ns1.lxn.co.kr postmaster.lxn.co.kr |
Analysis
Hierarchy
cntrnt.com is the parent of mail.cntrnt.com.
IP Addresses
cntrnt.com points to IP number 112.175.63.112.
Other host names include mail6.ktns2.kr, kotline.com, mail.kotline.com and mail.cntrnt.com that share IP numbers with cntrnt.com.
Name Servers
cntrnt.com is delegated to two name servers: ns1.lxn.co.kr and ns2.lxn.co.kr.
cntrnt.com uses the same name server setup as other domains such as soomeetech.com, mfly.co.kr, dongsungkr.com, hjsnt.com and hyundaiwaco.com.
cntrnt.com shares name servers with other domains at least partially, for example tblogis.co.kr, linkon.kr, mingafood.co.kr, 175.26.223.in-addr.arpa and 145.238.49.in-addr.arpa.
These name servers are commonly used with localhost, ns1.linex.kr and ns2.linex.kr.
Host names with one IP number:
ns1.lxn.co.kr points to: 49.238.193.42.
ns2.lxn.co.kr points to: 49.236.176.11.
Mail Servers
cntrnt.com is handled by a single mail server, mail4.ktns2.kr.
cntrnt.com uses the same mail server setup as other domains like kotline.com and prolinelogic.co.kr.
mail4.ktns2.kr points to a single IP: 112.175.63.120.