koyo-ph.com - robtex.com
koyo-ph.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 175.28.4.18🇯🇵 XSERVER-AS175.28.4.0/23 XSERVER Inc. | ||||||
| PTR | sv17.xtwo.ne.jp | ||||||
| NS | ns1.xtwo.ne.jp ⭐ | ||||||
| A | 175.28.4.232🇯🇵 XSERVER-AS175.28.4.0/23 XSERVER Inc. | ||||||
| PTR | ns1.xtwo.ne.jp | ||||||
| NS | ns2.xtwo.ne.jp | ||||||
| A | 202.226.39.251🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns2.xtwo.ne.jp | ||||||
| NS | ns3.xtwo.ne.jp | ||||||
| A | 202.226.37.251🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns3.xtwo.ne.jp | ||||||
| MX | koyo-ph.com ⭐ | ||||||
| A | 175.28.4.18🇯🇵 XSERVER-AS175.28.4.0/23 XSERVER Inc. | ||||||
| PTR | sv17.xtwo.ne.jp | ||||||
| TXT | v=spf1 +a:sv17.xtwo.ne.jp +a:koyo-ph.com +mx include:spf.sender.xserver.jp ~all | ||||||
| SOA | ns1.xtwo.ne.jproot@sv0.xtwo.ne.jp serial=0 | ||||||
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=1775931617 | ||||||
MX for
koyo-ph.com |
Same first word
koyo-ph.com |
DNS History
5 records (5 active, 0 former)
●NSns1.xtwo.ne.jp2016-12-21 → 2026-04-11 · 2 obs
● 2026-04-11 18:24:42
●NSns2.xtwo.ne.jp2016-12-21 → 2026-04-11 · 2 obs
● 2026-04-11 18:24:42
●NSns3.xtwo.ne.jp2016-12-21 → 2026-04-11 · 2 obs
● 2026-04-11 18:24:42
●MXkoyo-ph.com2016-12-21 → 2026-04-11 · 2 obs
● 2026-04-11 18:24:42
●A175.28.4.182016-12-21 → 2026-04-11 · 2 obs
● 2026-04-11 18:24:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| koyo-ph.com | ns1.xtwo.ne.jp, ns2.xtwo.ne.jp, ns3.xtwo.ne.jp | - |
✅ Authoritative Response
Server:175.28.4.232
NS records: ns1.xtwo.ne.jp, ns2.xtwo.ne.jp, ns3.xtwo.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for koyo-ph.com (unsigned zone)
⏱️ Timing
Total: 771ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 175.28.4.18 |
| NS | 3 | ns3.xtwo.ne.jp, ns2.xtwo.ne.jp... |
| MX | 1 | koyo-ph.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv17.xtwo.ne.jp +a:koyo-ph.com |
| SOA | 1 | ns1.xtwo.ne.jp root.sv0.xtwo.ne.jp |
Analysis
Mail Server Role
For koyo-ph.com, the mail server is koyo-ph.com.
IP Addresses
koyo-ph.com resolves to one IP number: 175.28.4.18.
other host names including s-dc.net, japiu.com, mr-zeirishi.com, mail.jin-dc.com and danjikidiet.com share IP numbers with koyo-ph.com.
Name Servers
koyo-ph.com is delegated to three name servers ns1.xtwo.ne.jp, ns2.xtwo.ne.jp and ns3.xtwo.ne.jp.
koyo-ph.com at least partially shares name servers with other domains, for instance shikakinzoku-kaitori.com, kanagasaki.xtwo.jp, concorde.co.jp, realestate-toushi.net and suntachi.net.
Host names with one IP number: ns1.xtwo.ne.jp points to 175.28.4.232; ns2.xtwo.ne.jp points to 202.226.39.251; ns3.xtwo.ne.jp points to 202.226.37.251.
Mail Servers
koyo-ph.com is served by a single mail server, koyo-ph.com.
koyo-ph.com resolves to IP 175.28.4.18.