alex-server.com - robtex.com
alex-server.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 162.43.113.22🇯🇵 XSERVER-AS162.43.112.0/21 XSERVER Inc. | ||||||
| PTR | dsv21.sixcore.ne.jp | ||||||
| NS | ns1.sixcore.ne.jp ⭐ | ||||||
| A | 202.226.36.232🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns1.sixcore.ne.jp | ||||||
| NS | ns2.sixcore.ne.jp | ||||||
| A | 202.226.39.241🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns2.sixcore.ne.jp | ||||||
| NS | ns3.sixcore.ne.jp | ||||||
| A | 202.226.37.248🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns3.sixcore.ne.jp | ||||||
| MX | alex-server.com ⭐ | ||||||
| A | 162.43.113.22🇯🇵 XSERVER-AS162.43.112.0/21 XSERVER Inc. | ||||||
| PTR | dsv21.sixcore.ne.jp | ||||||
| TXT | v=spf1 +a:alex.sixcore-server.jp +a:alex-server.com +mx include:spf.sender.xs... | ||||||
| SOA | ns1.sixcore.ne.jproot@sv0.sixcore.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=1786632834 | ||||||
MX for
alex-server.com |
Same first word
alex-server.com |
alex-server.dyndns.org |
alex-server.de |
Similar names
DNS History
6 records (5 active, 1 former)
●NSns1.sixcore.ne.jp2015-08-05 → 2026-08-13 · 2 obs
● 2026-08-13 15:24:48
●NSns2.sixcore.ne.jp2015-08-05 → 2026-08-13 · 2 obs
● 2026-08-13 15:24:48
●NSns3.sixcore.ne.jp2015-08-05 → 2026-08-13 · 2 obs
● 2026-08-13 15:24:48
●MXalex-server.com2015-08-05 → 2026-08-13 · 2 obs
● 2026-08-13 15:24:48
●A162.43.113.222026-03-17 → 2026-08-13 · 3 obs
● 2026-03-17 16:39:00
● 2026-08-13 15:24:48
○A219.94.201.222015-08-05 → 2018-08-19 · 4 obs
● 2018-08-19 14:56:04
○ 2026-03-17 16:39:00
○ 2026-08-13 15:24:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, j.gtld-servers.net, m.gtld-servers.net, h.gtld-servers.net... | - |
| alex-server.com | ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp | - |
✅ Authoritative Response
Server:202.226.36.232
NS records: ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for alex-server.com (unsigned zone)
⏱️ Timing
Total: 972ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.43.113.22 |
| NS | 3 | ns2.sixcore.ne.jp, ns1.sixcore.ne.jp... |
| MX | 1 | alex-server.com (pri: 0) |
| TXT | 1 | v=spf1 +a:alex.sixcore-server.jp +a:alex |
| SOA | 1 | ns1.sixcore.ne.jp root.sv0.sixcore.ne.jp |
Analysis
Mail Server Role
alex-server.com handles its own mail, functioning as its own mail server.
IP Addresses
alex-server.com resolves to just one IP address, 162.43.113.22.
Two other host names, along with dsv21.sixcore.ne.jp, i-creed.com and e-alex.jp, also share IP numbers with alex-server.com.
Name Servers
alex-server.com is delegated to three name servers: ns1.sixcore.ne.jp, ns2.sixcore.ne.jp and ns3.sixcore.ne.jp.
alex-server.com has at least partial name server overlap with other domains, such as rereco.net, bookshelf-tsuhan.com, livent.co.jp and two others.
ns1.sixcore.ne.jp, ns2.sixcore.ne.jp and ns3.sixcore.ne.jp each resolve to a single IP address: ns1.sixcore.ne.jp resolves to 202.226.36.232, ns2.sixcore.ne.jp resolves to 202.226.39.241 and ns3.sixcore.ne.jp resolves to 202.226.37.248.
Mail Servers
alex-server.com is served by just one mail server: alex-server.com.
alex-server.com resolves to a single IP number: 162.43.113.22.