firststage-pro.com - robtex.com
firststage-pro.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 162.43.105.58🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc. | ||||||
| PTR | sv617.xbiz.ne.jp | ||||||
| NS | ns1.xbiz.ne.jp ⭐ | ||||||
| A | 157.112.182.247🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc. | ||||||
| PTR | ns1.xbiz.ne.jp | ||||||
| NS | ns2.xbiz.ne.jp | ||||||
| A | 35.76.79.244🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix | ||||||
| PTR | ns2.xbiz.ne.jp | ||||||
| NS | ns3.xbiz.ne.jp | ||||||
| A | 157.112.191.237🇯🇵 XSERVER-AS157.112.184.0/21 XSERVER Inc. | ||||||
| PTR | ns3.xbiz.ne.jp | ||||||
| MX | firststage-pro.com ⭐ | ||||||
| A | 162.43.105.58🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc. | ||||||
| PTR | sv617.xbiz.ne.jp | ||||||
| TXT | v=spf1 +a:sv617.xbiz.ne.jp +a:firststage-pro.com +mx include:spf.sender.xserv... | ||||||
| SOA | ns1.xbiz.ne.jproot@xbiz.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=1785639477 | ||||||
MX for
firststage-pro.com |
Same first word
firststage-pro.com |
DNS History
5 records (5 active, 0 former)
●NSns1.xbiz.ne.jp2026-06-12 → 2026-08-02 · 2 obs
● 2026-08-02 03:24:56
●NSns2.xbiz.ne.jp2026-06-12 → 2026-08-02 · 2 obs
● 2026-08-02 03:24:56
●NSns3.xbiz.ne.jp2026-06-12 → 2026-08-02 · 2 obs
● 2026-08-02 03:24:56
●MXfirststage-pro.com2026-06-12 → 2026-08-02 · 2 obs
● 2026-08-02 03:24:56
●A162.43.105.582026-06-12 → 2026-08-02 · 2 obs
● 2026-08-02 03:24:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| firststage-pro.com | ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp | - |
✅ Authoritative Response
Server:157.112.191.237
NS records: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for firststage-pro.com (unsigned zone)
⏱️ Timing
Total: 1075ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.43.105.58 |
| NS | 3 | ns2.xbiz.ne.jp, ns1.xbiz.ne.jp... |
| MX | 1 | firststage-pro.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv617.xbiz.ne.jp +a:firststage |
| SOA | 1 | ns1.xbiz.ne.jp root.xbiz.ne.jp |
Analysis
Mail Server Role
firststage-pro.com serves as a mail server for firststage-pro.com.
IP Addresses
firststage-pro.com has exactly one IP address — 162.43.105.58.
yachiyaku.or.jp, est-jp.com, ns.jpc-ltd.net plus two other host names have IP numbers in common with firststage-pro.com.
Name Servers
firststage-pro.com has three name servers — ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp.
firststage-pro.com has at least partial name server overlap with other domains, such as orupack.co.jp, kif-org.com, kumiita.com and two others.
These name servers tend to appear together with the name servers ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.
Each of the three hostnames points to exactly one IP address: ns1.xbiz.ne.jp points to 157.112.182.247, ns2.xbiz.ne.jp points to 35.76.79.244 and ns3.xbiz.ne.jp points to 157.112.191.237.
Mail Servers
firststage-pro.com uses exactly one mail server, which is firststage-pro.com.
firststage-pro.com points to one IP number — 162.43.105.58.