`mx1.mathkangaroo.jp`

DNSSEC	⚠️ Not signed
A	46.4.12.146^{🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3}
		PTR	`static.146.12.4.46.clients.your-server.de`

`mathkangaroo.jp`

	DNSSEC	⚠️ Not signed
	A	2600:1900:4001:4b5:8000::^{🇺🇸 Google2600:1900:4000::/44}
	A	34.66.57.33^{🇺🇸 Google34.66.48.0/20}
	NS	`ns1.mathkangaroo.jp` ⭐
	NS	`ns1.csof.net`
	NS	`ns2.csof.net`
	NS	`ns3.csof.net`
	NS	`ns4.csof.net`
	MX	`mx1.mathkangaroo.jp` ⭐
	MX	`mx2.mathkangaroo.jp` ⭐
	TXT	`v=spf1 include:_incspfcheck.mailspike.net ?all`
	SOA	`ns1.mathkangaroo.jp`hostmaster@mathkangaroo.jp serial=1778775265

📈 Tranco rank: #304,277

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mathkangaroo.jp

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DNS History

1 record (1 active, 0 former)

●A46.4.12.1462026-04-16 → 2026-05-15 · 2 obs

● 2026-04-16 04:19:42
● 2026-05-15 01:05:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
mathkangaroo.jp	ns3.csof.net, ns4.csof.net, ns1.csof.net, ns2.csof.net	-

✅ Authoritative Response

Server:18.205.186.231

NS records: ns3.csof.net, ns4.csof.net, ns1.csof.net, ns2.csof.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathkangaroo.jp (unsigned zone)

⏱️ Timing

Total: 745ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`46.4.12.146`

Analysis

Mail Server Role

mx1.mathkangaroo.jp is the mail server for mathkangaroo.jp.

mx2.mathkangaroo.jp is a common mail server alongside mx1.mathkangaroo.jp.

IP Addresses

mx1.mathkangaroo.jp points to a single IP number: 46.4.12.146.

other host names for instance mx1.b643cb8c4575b431557339fe4a2c4bf9.today, mx1.kujxqdq.com, mx1.a9e5657e110e3af49e2938c67b42ba7e.us, mx1.2e24a5b0da9d5fc750188a772268205c.com and mx1.136982a7b24560f7cb82d038c214c639.com share IP numbers with mx1.mathkangaroo.jp.

mx1.mathkangaroo.jp - robtex.com