`mx1.undertree.co.jp`

DNSSEC	⚠️ Not signed
A	162.43.105.57^{🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc.}
		PTR	`sv616.xbiz.ne.jp`

`undertree.co.jp`

	DNSSEC	⚠️ Not signed
	A	162.43.105.57^{🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc.}
	NS	`ns1.xbiz.ne.jp` ⭐
	NS	`ns2.xbiz.ne.jp`
	NS	`ns3.xbiz.ne.jp`
	MX	`undertree.co.jp` ⭐
	TXT	`v=spf1 +a:sv616.xbiz.ne.jp +a:undertree.co.jp +mx include:spf.sender.xserver....`
	SOA	`ns1.xbiz.ne.jp`root@xbiz.ne.jp serial=0

Previously MX for

undertree.co.jp

www.undertree.co.jp

Same first word

mx1.fr

mx1.it

mx1.ch

mx1.tuxfamily.org

mx1.org

mx1.nl

mx1.ca

mx1.blogspot.com

mx1.net

mx1.me

mx1.mx

mx1.info

mx1.cn

mx1.uni5.net

mx1.com.au

mx1.net.au

mx1.at

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mx1.email

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mx1.jp

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mx1.net.br

mx1.cloudaccess.net

mx1.pb.gov.br

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mx1.biz

mx1.tv

mx1.pl

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mx1.lt

mx1.gov.lk

mx1.vg

mx1.com.br

mx1.com

mx1.uk

mx1.gov.sc

mx1.io

mx1.gov.ls

mx1.goip.de

mx1.hu

mx1.cz

mx1.xyz

mx1.eu

mx1.de

mx1.com.mx

mx1.ws

mx1.cc

mx1.in-berlin.de

mx1.kinghost.net

Similar names

1mx.com

m1x.ca

1xm.org

xm1.de

m1x.app

1xm.net

1xm.co

xm1.ru

m1x.org

xm1.mobi

m1x.de

m1x.mobi

1mx.cn

xm1.club

1mx.eu

xm1.me

m1x.com

xm1.net

xm1.com

m1x.co.in

m1x.it

1mx.ru

xm1.cc

m1x.ch

1mx.net

1mx.me

x1m.nl

x1m.net

m1x.dk

m1x.ru

x1m.com

xm1.org

1mx.com.br

m1x.eu

1xm.de

1xm.ph

x1m.info

1xm.biz

m1x.net

1mx.de

x1m.de

1xm.ru

xm1.site

1xm.com

m1x.com.br

1mx.at

xm1.dnsalias.com

m1x.in

DNS History

2 records (1 active, 1 former)

○A121.83.254.2512016-01-17 → 2016-01-17 · 3 obs

● 2016-01-17 20:24:38
○ 2026-04-19 22:54:12
○ 2026-04-19 22:54:14

●A162.43.105.572026-04-19 → 2026-04-19 · 3 obs

○ 2016-01-17 20:24:38
● 2026-04-19 22:54:12
● 2026-04-19 22:54:14

🔍 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: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 undertree.co.jp (unsigned zone)

⏱️ Timing

Total: 631ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`162.43.105.57`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp)

Analysis

IP Addresses

mx1.undertree.co.jp points to a single IP address: 162.43.105.57.

Other host names such as sv616.xbiz.ne.jp, nishiyama-kougyo.com, tokai-h.co.jp, tesage.net and jammin.cc share IPs with mx1.undertree.co.jp.

mx1.undertree.co.jp - robtex.com