undertree.co.jp - robtex.com
undertree.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 162.43.105.57🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc. | ||||||
| PTR | sv616.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 | undertree.co.jp ⭐ | ||||||
| A | 162.43.105.57🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc. | ||||||
| PTR | sv616.xbiz.ne.jp | ||||||
| TXT | v=spf1 +a:sv616.xbiz.ne.jp +a:undertree.co.jp +mx include:spf.sender.xserver.... | ||||||
| SOA | ns1.xbiz.ne.jproot@xbiz.ne.jp serial=0 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
Previously NS for
MX for
undertree.co.jp |
Subdomains
Same first word
undertree.co.jp |
undertree.io |
undertree.org |
DNS History
12 records (5 active, 7 former)
●NSns1.xbiz.ne.jp2026-04-11 → 2026-04-19 · 3 obs
● 2026-04-11 16:47:52
● 2026-04-19 20:18:20
○NSns103.nameserver.ne.jp2015-06-16 → 2017-06-08 · 4 obs
● 2017-06-08 13:11:10
○ 2026-04-11 16:47:52
○ 2026-04-19 20:18:20
●NSns2.xbiz.ne.jp2026-04-11 → 2026-04-19 · 3 obs
● 2026-04-11 16:47:52
● 2026-04-19 20:18:20
○NSns3.nameserver.ne.jp2015-06-16 → 2017-06-08 · 4 obs
● 2017-06-08 13:11:10
○ 2026-04-11 16:47:52
○ 2026-04-19 20:18:20
●NSns3.xbiz.ne.jp2026-04-11 → 2026-04-19 · 3 obs
● 2026-04-11 16:47:52
● 2026-04-19 20:18:20
○NSns4.nameserver.ne.jp2015-06-16 → 2017-06-08 · 4 obs
● 2017-06-08 13:11:10
○ 2026-04-11 16:47:52
○ 2026-04-19 20:18:20
○NSundertree.co.jp2015-06-16 → 2017-06-08 · 4 obs
● 2017-06-08 13:11:10
○ 2026-04-11 16:47:52
○ 2026-04-19 20:18:20
○MXmx1.undertree.co.jp2015-06-16 → 2017-06-08 · 4 obs
● 2017-06-08 13:11:10
○ 2026-04-11 16:47:52
○ 2026-04-19 20:18:20
●MXundertree.co.jp2026-04-11 → 2026-04-19 · 3 obs
● 2026-04-11 16:47:52
● 2026-04-19 20:18:20
○A121.83.254.512016-04-08 → 2017-06-08 · 5 obs
● 2016-04-08 15:03:32
● 2017-06-08 13:11:10
○ 2026-04-11 16:47:52
○ 2026-04-19 20:18:20
○A121.83.254.532015-06-16 → 2016-01-17 · 4 obs
● 2016-01-17 20:24:38
○ 2016-04-08 15:03:32
○ 2026-04-19 20:18:20
●A162.43.105.572026-04-11 → 2026-04-19 · 3 obs
● 2026-04-11 16:47:52
● 2026-04-19 20:18:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | c.dns.jp, a.dns.jp, e.dns.jp, f.dns.jp... | - |
| undertree.co.jp | ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp | 3 records |
✅ Authoritative Response
Server:35.76.79.244
NS records: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for undertree.co.jp (unsigned zone)
⏱️ Timing
Total: 479ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.43.105.57 |
| NS | 3 | ns3.xbiz.ne.jp, ns1.xbiz.ne.jp... |
| MX | 1 | undertree.co.jp (pri: 0) |
| TXT | 1 | v=spf1 +a:sv616.xbiz.ne.jp +a:undertree. |
| SOA | 1 | ns1.xbiz.ne.jp root.xbiz.ne.jp |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp)
Analysis
Hierarchy
undertree.co.jp is a parent of mail.undertree.co.jp and www.undertree.co.jp.
Mail Server Role
For undertree.co.jp, the mail server is undertree.co.jp.
IP Addresses
undertree.co.jp resolves to one IP number: 162.43.105.57.
other host names including www.kanayama-m.com, www.asabi.ac.jp, kplanet.co.jp, mail.undertree.co.jp and yts-pump.com share IP numbers with undertree.co.jp.
Name Servers
undertree.co.jp is delegated to three name servers ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp.
undertree.co.jp at least partially shares name servers with other domains, for instance kenbisoba.com, lirico.co.jp, cutboard.com, ktsystem.com and septis.co.jp.
Host names with one IP number: ns1.xbiz.ne.jp points to 157.112.182.247; ns2.xbiz.ne.jp points to 35.76.79.244; ns3.xbiz.ne.jp points to 157.112.191.237.
Mail Servers
undertree.co.jp is served by a single mail server, undertree.co.jp.
undertree.co.jp resolves to IP 162.43.105.57.