1fs.kr - robtex.com
1fs.kr
| DNSSEC | ⚠️ Not signed | ||||||
| A | 75.2.85.42🇺🇸 Amazon75.2.80.0/20 | ||||||
| PTR | a4c6c51f8b10d0080.awsglobalaccelerator.com | ||||||
| A | 99.83.196.71🇺🇸 Amazon99.83.192.0/20 | ||||||
| NS | ns1.hosting.co.kr ⭐ | ||||||
| A | 121.254.170.11🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary | ||||||
| NS | ns2.hosting.co.kr | ||||||
| A | 43.201.141.93🇰🇷 Amazon43.200.0.0/14 EC2 ICN Prefix | ||||||
| PTR | ec2-43-201-141-93.ap-northeast-2.compute.amazonaws.com | ||||||
| NS | ns3.hosting.co.kr | ||||||
| A | 121.254.170.12🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary | ||||||
| NS | ns4.hosting.co.kr | ||||||
| A | 43.201.141.93🇰🇷 Amazon43.200.0.0/14 EC2 ICN Prefix | ||||||
| PTR | ec2-43-201-141-93.ap-northeast-2.compute.amazonaws.com | ||||||
| MX | aspmx.daum.net ⭐ | ||||||
| A | 121.53.85.23🇰🇷 KAKAO-AY1121.53.80.0/21 Kakao | ||||||
| MX | alt.aspmx.daum.net(20) | ||||||
| A | 121.53.85.23🇰🇷 KAKAO-AY1121.53.80.0/21 Kakao | ||||||
| TXT | v=spf1 include:_spf.daum.net ~all | ||||||
| SOA | ns1.hosting.co.kradmin@1fs.kr serial=12 | ||||||
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=2610170898 | ||||||
Same first word
1fs.com |
1fs.in |
1fs.pw |
1fs.net |
1fs.group |
1fs.eu |
1fs.co |
1fs.club |
1fs.ph |
1fs.homes |
1fs.com.au |
1fs.com.cn |
1fs.au |
1fs.de |
1fs.at |
1fs.ru |
1fs.cn |
1fs.co.uk |
1fs.kz |
1fs.net.ph |
1fs.jp |
1fs.com.ph |
1fs.nl |
1fs.workers.dev |
Similar names
Previous names
Next names
1gb.kr |
1gg.kr |
1go.kr |
1gold.kr |
1golf.kr |
1goods.kr |
1haja.kr |
1half.kr |
1han.kr |
1heart.kr |
1hopi.kr |
1hotel.kr |
1hour.kr |
1hp.kr |
1hz.kr |
1i1.kr |
1ifepick.kr |
1ii.kr |
DNS History
8 records (8 active, 0 former)
●NSns1.hosting.co.kr2026-10-17 → 2026-10-17 · 2 obs
● 2026-10-17 19:34:42
●NSns2.hosting.co.kr2026-10-17 → 2026-10-17 · 2 obs
● 2026-10-17 19:34:42
●NSns3.hosting.co.kr2026-10-17 → 2026-10-17 · 2 obs
● 2026-10-17 19:34:42
●NSns4.hosting.co.kr2026-10-17 → 2026-10-17 · 2 obs
● 2026-10-17 19:34:42
●MXalt.aspmx.daum.net2026-10-17 → 2026-10-17 · 2 obs
● 2026-10-17 19:34:42
●A75.2.85.422026-10-17 → 2026-10-17 · 2 obs
● 2026-10-17 19:34:42
●A99.83.196.712026-10-17 → 2026-10-17 · 2 obs
● 2026-10-17 19:34:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | f.dns.kr, g.dns.kr, d.dns.kr, b.dns.kr... | - |
| 1fs.kr | ns2.hosting.co.kr, ns4.hosting.co.kr, ns1.hosting.co.kr, ns3.hosting.co.kr | - |
✅ Authoritative Response
Server:43.201.141.93
NS records: ns2.hosting.co.kr, ns4.hosting.co.kr, ns1.hosting.co.kr, ns3.hosting.co.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 1fs.kr (unsigned zone)
⏱️ Timing
Total: 1888ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 75.2.85.42, 99.83.196.71 |
| NS | 4 | ns4.hosting.co.kr, ns2.hosting.co.kr... |
| MX | 2 | aspmx.daum.net (pri: 10), alt.aspmx.daum.net (pri: 20) |
| TXT | 1 | v=spf1 include:_spf.daum.net ~all |
| SOA | 1 | ns1.hosting.co.kr admin.1fs.kr |
Analysis
IP Addresses
1fs.kr directs to two IP numbers, 75.2.85.42 and 99.83.196.71
kakaocrop.com, involver.co.kr, appdynamics.co.kr plus two other host names have IP numbers in common with 1fs.kr.
Name Servers
Four name servers handle the delegation for 1fs.kr: ns1.hosting.co.kr, ns2.hosting.co.kr, ns3.hosting.co.kr and ns4.hosting.co.kr.
1fs.kr partially shares its NS delegation with several other domains, including jinodd.net, xn--hq1b18vu7p.com, iwantcom.co.kr and two others.
Four hostnames each with a single A record: ns1.hosting.co.kr → 121.254.170.11, ns2.hosting.co.kr → 43.201.141.93, ns3.hosting.co.kr → 121.254.170.12, ns4.hosting.co.kr → 43.201.141.93. ns2.hosting.co.kr and ns4.hosting.co.kr both direct to 43.201.141.93.
ns2.hosting.co.kr and ns4.hosting.co.kr are host names that each point to 43.201.141.93 IP addresses.
Mail Servers
1fs.kr uses two mail servers, aspmx.daum.net and alt.aspmx.daum.net.
The mail server setup of 1fs.kr matches that of other domains such as sellius.kr, hjis.co.kr, supmeakorea.co.kr and two others.
At least some of the mail servers used by 1fs.kr are shared with other domains: datepop.co.kr, prdd.kr, adall7.co.kr and two others among them.
aspmx.daum.net and alt.aspmx.daum.net both resolve to the same single IP address: 121.53.85.23.
aspmx.daum.net and alt.aspmx.daum.net are host names that each point to 121.53.85.23 IP addresses.