leanlab.kr - dns.ninja
leanlab.kr
| DNSSEC | ⚠️ Not signed | ||||||
| A | 116.125.140.184🇰🇷 SKB-NET116.125.0.0/16 SK Broadband | ||||||
| NS | leanlab.kr ⭐ | ||||||
| A | 116.125.140.184🇰🇷 SKB-NET116.125.0.0/16 SK Broadband | ||||||
| NS | ns.leanlab.kr ⚠️ Not in parent delegation | ||||||
| A | 218.145.65.143🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| NS | ns.yesoni.co.kr ⚠️ Not in zone NS records | ||||||
| A | 218.145.65.143🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| NS | ns1.leanlab.kr ⚠️ Not in parent delegation | ||||||
| A | 116.126.143.226🇰🇷 SKB-NET116.126.0.0/16 SK Broadband | ||||||
| NS | ns1.yesoni.co.kr ⚠️ Not in zone NS records | ||||||
| A | 116.126.143.226🇰🇷 SKB-NET116.126.0.0/16 SK Broadband | ||||||
| NS | ns2.leanlab.kr ⚠️ Not in parent delegation | ||||||
| A | 218.145.65.144🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| NS | ns2.yesoni.co.kr ⚠️ Not in zone NS records | ||||||
| A | 218.145.65.144🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| NS | ns3.leanlab.kr ⚠️ Not in parent delegation | ||||||
| A | 116.126.143.225🇰🇷 SKB-NET116.126.0.0/16 SK Broadband | ||||||
| NS | ns3.yesoni.co.kr ⚠️ Not in zone NS records | ||||||
| A | 116.126.143.225🇰🇷 SKB-NET116.126.0.0/16 SK Broadband | ||||||
| MX | rhusw7ssd-0077.fmcity.com ⭐ | ||||||
| A | 116.125.140.184🇰🇷 SKB-NET116.125.0.0/16 SK Broadband | ||||||
| TXT | v=spf1 ip4:116.125.140.184 ~all | ||||||
| SOA | leanlab.krpostmaster@leanlab.kr serial=20250801 | ||||||
kr
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | g.dns.kr ⭐ | ||||||
| NS | b.dns.kr | ||||||
| NS | c.dns.kr | ||||||
| NS | d.dns.kr | ||||||
| NS | e.dns.kr | ||||||
| NS | f.dns.kr | ||||||
| SOA | g.dns.krdomain-manager@nic.or.kr serial=2606210727 | ||||||
NS for
leanlab.kr |
Subdomains
Same first word
Similar names
DNS History
13 records (11 active, 2 former)
●NSleanlab.kr2018-01-30 → 2026-06-21 · 2 obs
● 2026-06-21 12:57:22
●NSns.leanlab.kr2018-01-30 → 2026-06-21 · 2 obs
● 2026-06-21 12:57:22
●NSns.yesoni.co.kr2026-03-27 → 2026-06-21 · 3 obs
● 2026-03-27 05:29:28
● 2026-06-21 12:57:22
●NSns1.leanlab.kr2018-01-30 → 2026-06-21 · 2 obs
● 2026-06-21 12:57:22
●NSns1.yesoni.co.kr2026-03-27 → 2026-06-21 · 3 obs
● 2026-03-27 05:29:28
● 2026-06-21 12:57:22
●NSns2.leanlab.kr2018-01-30 → 2026-06-21 · 2 obs
● 2026-06-21 12:57:22
●NSns2.yesoni.co.kr2026-03-27 → 2026-06-21 · 3 obs
● 2026-03-27 05:29:28
● 2026-06-21 12:57:22
●NSns3.leanlab.kr2018-01-30 → 2026-06-21 · 2 obs
● 2026-06-21 12:57:22
●NSns3.yesoni.co.kr2026-03-27 → 2026-06-21 · 3 obs
● 2026-03-27 05:29:28
● 2026-06-21 12:57:22
●MXrhusw7ssd-0077.fmcity.com2026-03-27 → 2026-06-21 · 3 obs
● 2026-03-27 05:29:28
● 2026-06-21 12:57:22
○MXrmw-002.fmcity.com2018-01-30 → 2018-01-30 · 3 obs
○ 2026-03-27 05:29:28
○ 2026-06-21 12:57:22
○A112.175.85.1492018-01-30 → 2018-01-30 · 3 obs
○ 2026-03-27 05:29:28
○ 2026-06-21 12:57:22
●A116.125.140.1842026-03-27 → 2026-06-21 · 3 obs
● 2026-03-27 05:29:28
● 2026-06-21 12:57:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | e.dns.kr, g.dns.kr, c.dns.kr, b.dns.kr... | - |
| leanlab.kr | ns3.yesoni.co.kr, ns.yesoni.co.kr, ns1.yesoni.co.kr, ns2.yesoni.co.kr | - |
✅ Authoritative Response
Server:116.126.143.225
NS records: ns3.yesoni.co.kr, ns.yesoni.co.kr, ns1.yesoni.co.kr, ns2.yesoni.co.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for leanlab.kr (unsigned zone)
⏱️ Timing
Total: 1821ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 116.125.140.184 |
| NS | 4 | ns3.leanlab.kr, ns.leanlab.kr... |
| MX | 1 | rhusw7ssd-0077.fmcity.com (pri: 10) |
| TXT | 1 | v=spf1 ip4:116.125.140.184 ~all |
| SOA | 1 | leanlab.kr postmaster.leanlab.kr |
Analysis
Hierarchy
leanlab.kr serves as the parent of ns.leanlab.kr, ns1.leanlab.kr, ns2.leanlab.kr and ns3.leanlab.kr.
Name Server Role
The NS records for leanlab.kr point back to leanlab.kr itself.
ns1.leanlab.kr, ns2.leanlab.kr and ns3.leanlab.kr are often grouped with leanlab.kr to function as name servers.
IP Addresses
leanlab.kr resolves to just one IP address, 116.125.140.184.
Additional host names — including rhusw7ssd-0077.fmcity.com and hbjoint.com — share IP numbers with leanlab.kr.
Name Servers
DNS for leanlab.kr is delegated to 9 name servers: leanlab.kr, ns1.leanlab.kr, ns2.leanlab.kr plus 6 other.
leanlab.kr has at least partial name server overlap with other domains, such as testinghouse.co.kr, shsng.com, vingcard.co.kr and two others.
ns1.yesoni.co.kr, ns.yesoni.co.kr and ns2.yesoni.co.kr — plus 7 other name servers — are commonly paired with these name servers.
Host names that point to one IP address:
The hostname leanlab.kr resolves to 116.125.140.184.
The hostname ns1.leanlab.kr resolves to 116.126.143.226.
The hostname ns2.leanlab.kr resolves to 218.145.65.144.
The hostname ns3.leanlab.kr resolves to 116.126.143.225.
The hostname ns.leanlab.kr resolves to 218.145.65.143.
The hostname ns1.yesoni.co.kr resolves to 116.126.143.226.
The hostname ns2.yesoni.co.kr resolves to 218.145.65.144.
The hostname ns3.yesoni.co.kr resolves to 116.126.143.225.
The hostname ns.yesoni.co.kr resolves to 218.145.65.143.
ns1.leanlab.kr along with ns1.yesoni.co.kr each resolve to 116.126.143.226 IP addresses.
ns2.leanlab.kr along with ns2.yesoni.co.kr each resolve to 218.145.65.144 IP addresses.
ns3.leanlab.kr along with ns3.yesoni.co.kr each resolve to 116.126.143.225 IP addresses.
ns.leanlab.kr along with ns.yesoni.co.kr each resolve to 218.145.65.143 IP addresses.
Mail Servers
The sole mail server for leanlab.kr is rhusw7ssd-0077.fmcity.com.
rhusw7ssd-0077.fmcity.com carries a single IP number, which is 116.125.140.184.