theclass300.com - robtex.com
theclass300.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 222.239.73.171🇰🇷 SKB-NET222.232.0.0/13 SK Broadband | ||||||
| NS | ns1.gabia.co.kr ⭐ | ||||||
| A | 20.200.205.248🇰🇷 Microsoft20.192.0.0/10 | ||||||
| PTR | ip-20-200-205-248.defastlink.net | ||||||
| NS | ns.gabia.co.kr | ||||||
| A | 43.201.170.100🇰🇷 Amazon43.200.0.0/14 EC2 ICN Prefix | ||||||
| PTR | ec2-43-201-170-100.ap-northeast-2.compute.amazonaws.com | ||||||
| NS | ns.gabia.net | ||||||
| A | 121.78.117.39🇰🇷 GABIA-AS-KR121.78.117.0/24 Transit customer route announce | ||||||
| PTR | ns1.gabia.co.kr | ||||||
| A | 211.234.124.90🇰🇷 DACOM-NET211.234.0.0/17 contact jblee@aunet.nm.kr if necessary contact ojupark@aunet.nm.kr if necessary | ||||||
| SOA | ns.gabia.co.krhosting@gabia.com 2018-07-18 #10 | ||||||
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=1771291435 | ||||||
Subdomains
www.theclass300.com |
Same first word
theclass300.com |
DNS History
5 records (4 active, 1 former)
●NSns.gabia.co.kr2015-06-20 → 2026-03-10 · 2 obs
● 2026-03-10 05:26:12
●NSns1.gabia.co.kr2015-06-20 → 2026-03-10 · 2 obs
● 2026-03-10 05:26:12
○A221.144.172.32015-06-20 → 2017-01-31 · 4 obs
● 2017-01-31 21:44:36
○ 2019-04-17 23:45:36
○ 2026-03-10 05:26:12
●A222.239.73.1712019-04-17 → 2026-03-10 · 3 obs
● 2019-04-17 23:45:36
● 2026-03-10 05:26:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| theclass300.com | ns.gabia.co.kr, ns1.gabia.co.kr, ns.gabia.net | - |
✅ Authoritative Response
Server: 43.201.170.100
NS records: ns.gabia.co.kr, ns1.gabia.co.kr, ns.gabia.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for theclass300.com (unsigned zone)
⏱️ Timing
Total: 2443ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 222.239.73.171 |
| NS | 3 | ns.gabia.co.kr, ns1.gabia.co.kr... |
| SOA | 1 | ns.gabia.co.kr hosting.gabia.com |
Analysis
Hierarchy
The parent of www.theclass300.com is theclass300.com.
IP Addresses
theclass300.com points to a single IP: 222.239.73.171.
Other host names, for instance ecolandjeju.co.kr, www.theclass300.com, www.bayhill.co.kr, enahotel.co.kr and urbanplaces.co.kr share IP numbers with theclass300.com.
Name Servers
theclass300.com is delegated to three name servers: ns.gabia.net, ns1.gabia.co.kr and ns.gabia.co.kr.
theclass300.com partially shares name servers with other domains; examples include jeju25.com, newssok.com, on-off.co.kr, mbcac.com and fnucni.net.
these name servers are commonly used with the name servers ns1.gabia.net.
Two IPs for a host:
ns.gabia.net points to 121.78.117.39 and 211.234.124.90.
One IP per host:
ns1.gabia.co.kr points to 20.200.205.248.
ns.gabia.co.kr points to 43.201.170.100.