mathdocs.net - robtex.com
mathdocs.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 121.153.3.180🇰🇷 KT-NET121.152.0.0/13 | ||||||
| NS | ns1.whoisdomain.kr ⭐ | ||||||
| A | 223.130.139.7🇰🇷 NBPAP-AS-AP223.130.128.0/19 Korea Internet & Security Agency (KISA) Seocho-ro 398, Seocho-gu, Seoul, Korea | ||||||
| NS | ns2.whoisdomain.kr | ||||||
| A | 211.188.57.152🇰🇷 NBPAP-AS-AP211.188.48.0/20 Korea Internet & Security Agency (KISA) Seocho-ro 398, Seocho-gu, Seoul, Korea | ||||||
| NS | ns3.whoisdomain.kr | ||||||
| A | 61.97.189.22🇰🇷 nhn-AS-KR61.97.176.0/20 Korea Internet & Security Agency (KISA) Seocho-ro 398, Seocho-gu, Seoul, Korea | ||||||
| NS | ns4.whoisdomain.kr | ||||||
| A | 219.251.156.134🇰🇷 GDNSKR-KR219.251.156.0/24 AS23600 | ||||||
| SOA | ns1.whoisdomain.krhelp@whois.co.kr 2026-05-09 #1 | ||||||
net
| 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=1794479841 | ||||||
Same first word
Similar names
Previous names
mathdash.net |
mathdata.net |
mathdb.net |
mathdemos.net |
mathdepartment.net |
mathdepot.net |
mathdesign.net |
mathdesigncollaborative.net |
mathdesigns.net |
mathdesup.net |
mathdex.net |
mathdle.net |
mathdna.net |
Next names
DNS History
8 records (5 active, 3 former)
○NSdns1.namesecure.com2007-09-23 → 2007-09-23 · 3 obs
○ 2015-11-06 06:24:08
○ 2026-11-12 10:57:26
○NSdns2.namesecure.com2007-09-23 → 2007-09-23 · 3 obs
○ 2015-11-06 06:24:08
○ 2026-11-12 10:57:26
●NSns1.whoisdomain.kr2026-09-09 → 2026-11-12 · 3 obs
● 2026-09-09 12:58:48
● 2026-11-12 10:57:26
●NSns2.whoisdomain.kr2026-09-09 → 2026-11-12 · 3 obs
● 2026-09-09 12:58:48
● 2026-11-12 10:57:26
●NSns3.whoisdomain.kr2026-09-09 → 2026-11-12 · 3 obs
● 2026-09-09 12:58:48
● 2026-11-12 10:57:26
●NSns4.whoisdomain.kr2026-09-09 → 2026-11-12 · 3 obs
● 2026-09-09 12:58:48
● 2026-11-12 10:57:26
●A121.153.3.1802026-09-09 → 2026-11-12 · 3 obs
● 2026-09-09 12:58:48
● 2026-11-12 10:57:26
○A64.62.166.782007-09-23 → 2007-09-23 · 3 obs
○ 2015-11-06 06:24:08
○ 2026-11-12 10:57:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| mathdocs.net | ns1.whoisdomain.kr, ns2.whoisdomain.kr, ns3.whoisdomain.kr, ns4.whoisdomain.kr | - |
✅ Authoritative Response
Server:219.251.156.134
NS records: ns1.whoisdomain.kr, ns2.whoisdomain.kr, ns3.whoisdomain.kr, ns4.whoisdomain.kr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathdocs.net (unsigned zone)
⏱️ Timing
Total: 1291ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 121.153.3.180 |
| NS | 4 | ns2.whoisdomain.kr, ns4.whoisdomain.kr... |
| SOA | 1 | ns1.whoisdomain.kr help.whois.co.kr |
Analysis
IP Addresses
mathdocs.net directs to one IP number, which is 121.153.3.180.
Name Servers
The domain mathdocs.net is delegated to these four name servers: ns1.whoisdomain.kr, ns2.whoisdomain.kr, ns3.whoisdomain.kr and ns4.whoisdomain.kr.
mathdocs.net shares at least some of its name servers with other domains, including idras.kr, insunginst.co.kr, unitas.co.kr and two others.
These name servers are frequently seen alongside the name servers dns1.yesnic.com, dns2.yesnic.com, dns3.yesnic.com and dns4.yesnic.com.
ns1.whoisdomain.kr resolves to 223.130.139.7. ns2.whoisdomain.kr resolves to 211.188.57.152. ns3.whoisdomain.kr resolves to 61.97.189.22. ns4.whoisdomain.kr resolves to 219.251.156.134. All four hosts carry exactly one IP address.