ytbgroup.jp - robtex.com
ytbgroup.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.166.219.125🇯🇵 PROX210.166.208.0/20 PNAP-TOK prox | ||||||
| PTR | ns.selfee.co.jp | ||||||
| NS | ns.selfee.co.jp ⭐ | ||||||
| A | 210.166.219.125🇯🇵 PROX210.166.208.0/20 PNAP-TOK prox | ||||||
| PTR | ns.selfee.co.jp | ||||||
| NS | dns2.ixent.ne.jp | ||||||
| A | 210.143.106.4🇯🇵 PROX210.143.96.0/20 PNAP-TOK prox | ||||||
| PTR | dns2.ixent.ne.jp | ||||||
| MX | mail.ytbgroup.jp ⭐ | ||||||
| A | 210.166.219.125🇯🇵 PROX210.166.208.0/20 PNAP-TOK prox | ||||||
| PTR | ns.selfee.co.jp | ||||||
| TXT | v=spf1 a mx a:ytbgroup.jp ip4:210.166.219.125 ip4:133.130.89.54 -all | ||||||
| SOA | ns.selfee.co.jpkatou@selfee.co.jp 2026-02-09 #1 | ||||||
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=1774508402 | ||||||
Subdomains
mail.ytbgroup.jp |
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●NSdns2.ixent.ne.jp2018-05-15 → 2026-03-26 · 2 obs
● 2026-03-26 07:14:16
●NSns.selfee.co.jp2018-05-15 → 2026-03-26 · 2 obs
● 2026-03-26 07:14:16
●MXmail.ytbgroup.jp2018-05-15 → 2026-03-26 · 2 obs
● 2026-03-26 07:14:16
○A210.143.104.1382018-05-15 → 2018-05-15 · 3 obs
○ 2026-03-13 19:53:44
○ 2026-03-26 07:14:16
●A210.166.219.1252026-03-13 → 2026-03-26 · 3 obs
● 2026-03-13 19:53:44
● 2026-03-26 07:14:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| ytbgroup.jp | dns2.ixent.ne.jp, ns.selfee.co.jp | 2 records |
✅ Authoritative Response
Server:210.143.106.4
NS records: dns2.ixent.ne.jp, ns.selfee.co.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ytbgroup.jp (unsigned zone)
⏱️ Timing
Total: 1379ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.166.219.125 |
| NS | 2 | dns2.ixent.ne.jp, ns.selfee.co.jp |
| MX | 1 | mail.ytbgroup.jp (pri: 10) |
| TXT | 1 | v=spf1 a mx a:ytbgroup.jp ip4:210.166.21 |
| SOA | 1 | ns.selfee.co.jp katou.selfee.co.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns2.ixent.ne.jp, ns.selfee.co.jp)
Analysis
Hierarchy
ytbgroup.jp is the parent of mail.ytbgroup.jp.
IP Addresses
ytbgroup.jp resolves to one IP number: 210.166.219.125.
other host names including mail.mechadoc.jp, mail.selfee.co.jp, kunimoto-motors.jp, mail.kunimoto-motors.jp and mail.orange-kt.com share IP numbers with ytbgroup.jp.
Name Servers
ytbgroup.jp is delegated to two name servers ns.selfee.co.jp and dns2.ixent.ne.jp.
ytbgroup.jp shares the same name server setup as other domains, for instance h-orange.com, kunimoto-motors.jp, autopran.com, selfee.co.jp and orange-kt.com.
ytbgroup.jp at least partially shares name servers with other domains, for instance digistats.net, tesio.jp, jonasun.com, b-a-c.co.jp and kca.co.jp.
These name servers are commonly used with the following name servers: ns.kssrv.jp, dns1.ixent.ne.jp, ns.nihondokan.co.jp, ns.boso-net.jp, ns.digistats.net, ns.mep-it.jp, ns.lonproof.jp, ns.natureland.co.jp, dns.ah-s.com and ns.knet-c.co.jp.
Host names with one IP number:
ns.selfee.co.jp points to 210.166.219.125
dns2.ixent.ne.jp points to 210.143.106.4
Mail Servers
ytbgroup.jp is handled by a single mail server, mail.ytbgroup.jp.
mail.ytbgroup.jp resolves to IP 210.166.219.125.