tcdo.jp - robtex.com
tcdo.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 218.223.84.200🇯🇵 SUZUYO-1218.223.84.0/24 Toco Channel Shizuoka Corporation | ||||||
| NS | ns1.gcd-s.net ⭐ | ||||||
| A | 49.143.240.60🇯🇵 SUZUYO-149.143.240.0/24 Toco Channel Shizuoka Corporation | ||||||
| NS | ns2.gcd-s.net | ||||||
| A | 183.182.44.140🇯🇵 IROB183.182.44.0/22 PACNET (proxy-registered route object) | ||||||
| MX | mail.tcdo.jp ⭐ | ||||||
| A | 218.223.84.200🇯🇵 SUZUYO-1218.223.84.0/24 Toco Channel Shizuoka Corporation | ||||||
| TXT | v=spf1 +ip4:218.223.84.200 +ip4:182.236.108.189 ~all | ||||||
| SOA | ns1.gcd-s.netpostmaster@ns1.gcd-s.net serial=2301251209 | ||||||
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1778445003 | ||||||
Subdomains
mail.tcdo.jp |
Same first word
Similar names
DNS History
6 records (4 active, 2 former)
●MXmail.tcdo.jp2015-08-18 → 2026-05-10 · 2 obs
● 2026-05-10 20:59:42
○A183.182.37.482015-08-18 → 2015-12-23 · 4 obs
● 2015-12-23 09:56:24
○ 2016-03-30 23:08:22
○ 2026-05-10 20:59:42
●A218.223.84.2002026-04-14 → 2026-05-10 · 3 obs
● 2026-04-14 07:38:16
● 2026-05-10 20:59:42
○A49.143.240.612016-03-30 → 2017-06-03 · 5 obs
● 2016-03-30 23:08:22
● 2017-06-03 11:21:58
○ 2026-04-14 07:38:16
○ 2026-05-10 20:59:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| tcdo.jp | ns2.gcd-s.net, ns1.gcd-s.net | - |
✅ Authoritative Response
Server:49.143.240.60
NS records: ns2.gcd-s.net, ns1.gcd-s.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tcdo.jp (unsigned zone)
⏱️ Timing
Total: 1247ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 218.223.84.200 |
| NS | 2 | ns2.gcd-s.net, ns1.gcd-s.net |
| MX | 1 | mail.tcdo.jp (pri: 10) |
| TXT | 1 | v=spf1 +ip4:218.223.84.200 +ip4:182.236. |
| SOA | 1 | ns1.gcd-s.net postmaster.ns1.gcd-s.net |
Analysis
Hierarchy
tcdo.jp is a parent of mail.tcdo.jp.
IP Addresses
tcdo.jp points to a single IP address: 218.223.84.200.
Other host names such as f-design.co.jp, www.ambamali-jp.org, mail.tcdo.jp, mail.la-vita.tv and 238.co.jp share IP numbers with tcdo.jp.
Name Servers
tcdo.jp is delegated to two name servers: ns1.gcd-s.net and ns2.gcd-s.net.
tcdo.jp uses the same name server setup as other domains, including iwanagalaw.com, munetokki.com, cgc-kitchen365.jp, mutsuura.jp and human-design.jp.
tcdo.jp shares some name servers with other domains, for example overseas.co.jp.
Hostnames with a single IP
ns1.gcd-s.net resolves to: 49.143.240.60.
ns2.gcd-s.net resolves to: 183.182.44.140.
Mail Servers
The mail server for tcdo.jp is mail.tcdo.jp.
Host mail.tcdo.jp points to IP 218.223.84.200.