edualpha.co.kr - robtex.com
edualpha.co.kr
| DNSSEC | ⚠️ Not signed | ||||||
| A | 121.78.251.11🇰🇷 KINXIDC-AS-KR121.78.224.0/19 KINX-Net | ||||||
| NS | ns5.dnszi.com ⭐ | ||||||
| A | 121.78.251.21🇰🇷 KINXIDC-AS-KR121.78.224.0/19 KINX-Net | ||||||
| NS | ns14.dnszi.com | ||||||
| A | 121.78.72.38🇰🇷 KINXIDC-AS-KR121.78.72.0/24 KINX-IDC | ||||||
| PTR | ns14.dnszi.com | ||||||
| NS | ns31.dnszi.com | ||||||
| A | 27.1.16.90🇰🇷 DAOU-AS-KR27.1.16.0/22 DAOU Tech | ||||||
| PTR | ns31.dnszi.com | ||||||
| NS | ns44.dnszi.com | ||||||
| A | 58.120.225.165🇰🇷 SKB-NET58.120.0.0/13 auto-generated route object for 58.120.0.0/13 | ||||||
| PTR | ns44.dnszi.com | ||||||
| NS | ns86.dnszi.com | ||||||
| A | 121.78.251.27🇰🇷 KINXIDC-AS-KR121.78.224.0/19 KINX-Net | ||||||
| MX | webmail.edualpha.co.kr ⭐ | ||||||
| A | 183.111.242.59🇰🇷 KT-NET183.104.0.0/13 KORNET KOREA TELECOM | ||||||
| TXT | v=spf1 ip4:183.110.224.0/24 ip4:175.126.146.0/24 ip4:112.175.12.0/24 ip4:118.... | ||||||
| SOA | ns5.dnszi.comroot@dnszi.com 2025-10-16 #5 | ||||||
co.kr
| DNSSEC | ⚠️ Not signed | ||||||
| NS | g.dns.kr ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | c.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | d.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | e.dns.kr ⚠️ Not in parent delegation | ||||||
| NS | f.dns.kr ⚠️ Not in parent delegation | ||||||
| SOA | g.dns.krdomain-manager@nic.or.kr serial=2604260826 | ||||||
Same first word
DNS History
7 records (7 active, 0 former)
●MXwebmail.edualpha.co.kr2026-03-26 → 2026-04-26 · 2 obs
● 2026-04-26 17:08:16
●A121.78.251.112026-03-26 → 2026-04-26 · 2 obs
● 2026-04-26 17:08:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| kr | b.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr... | - |
| edualpha.co.kr | ns86.dnszi.com, ns44.dnszi.com, ns31.dnszi.com, ns14.dnszi.com... | - |
✅ Authoritative Response
Server:121.78.251.21
NS records: ns86.dnszi.com, ns44.dnszi.com, ns31.dnszi.com, ns14.dnszi.com, ns5.dnszi.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at kr: Error: DNS query timeout: 210.101.60.1 for DNSKEY kr
⏱️ Timing
Total: 4440ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 121.78.251.11 |
| NS | 5 | ns44.dnszi.com, ns86.dnszi.com... |
| MX | 1 | webmail.edualpha.co.kr (pri: 10) |
| TXT | 1 | v=spf1 ip4:183.110.224.0/24 ip4:175.126. |
| SOA | 1 | ns5.dnszi.com root.dnszi.com |
Analysis
IP Addresses
edualpha.co.kr points to a single IP number: 121.78.251.11.
other host names for instance evertrue.co.kr, batumnang.com, wnw21.com, ny275.com and ondarrel.com share IP numbers with edualpha.co.kr.
Name Servers
edualpha.co.kr is delegated to five name servers: ns14.dnszi.com, ns31.dnszi.com, ns44.dnszi.com, ns5.dnszi.com and ns86.dnszi.com.
edualpha.co.kr at least partially shares name servers with other domains, for instance yodev.net, itts.co.kr, yncu.ac.kr, iampiver.com and mssj.co.kr.
Host names with one IP number:
ns14.dnszi.com points to: 121.78.72.38
ns31.dnszi.com points to: 27.1.16.90
ns44.dnszi.com points to: 58.120.225.165
ns5.dnszi.com points to: 121.78.251.21
ns86.dnszi.com points to: 121.78.251.27
Mail Servers
edualpha.co.kr is handled by a single mail server, webmail.edualpha.co.kr.
Host name webmail.edualpha.co.kr points to IP address 183.111.242.59.