`mail.doubletop.jp`

DNSSEC	⚠️ Not signed
A	153.122.170.16^{🇯🇵 AS131921153.122.160.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
		PTR	`whp16.poa.svr4u.net`

`doubletop.jp`

	DNSSEC	⚠️ Not signed
	A	153.122.170.16^{🇯🇵 AS131921153.122.160.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
	NS	`ns1.domainking.cloud` ⭐
	NS	`ns2.domainking.cloud`
	MX	`mail.doubletop.jp` ⭐
	SOA	`ns1.domainking.cloud`root@domainking.cloud serial=2737864322

MX for

doubletop.jp

Same first word

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DNS History

2 records (1 active, 1 former)

○A121.119.189.282015-08-01 → 2016-06-21 · 4 obs

● 2015-08-01 23:29:54
● 2016-06-21 01:11:42
○ 2026-03-09 13:31:30
○ 2026-04-15 02:39:26

●A153.122.170.162026-03-09 → 2026-04-15 · 3 obs

○ 2016-06-21 01:11:42
● 2026-03-09 13:31:30
● 2026-04-15 02:39:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
doubletop.jp	ns2.domainking.cloud, ns1.domainking.cloud	-

✅ Authoritative Response

Server:157.120.112.237

NS records: ns2.domainking.cloud, ns1.domainking.cloud

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for doubletop.jp (unsigned zone)

⏱️ Timing

Total: 1269ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`153.122.170.16`

Analysis

Mail Server Role

mail.doubletop.jp functions as a mail server for doubletop.jp.

IP Addresses

mail.doubletop.jp resolves to one IP number: 153.122.170.16.

other host names including mail.i-sic.jp, waza.bz, mail.makamatsu.com, mail.waza.bz and mail.linx-c.com share IP numbers with mail.doubletop.jp.

mail.doubletop.jp - robtex.com