`mail.itcube.jp`

DNSSEC	⚠️ Not signed
A	52.192.153.3^{🇯🇵 Amazon52.192.0.0/15 EC2 NRT prefix}
		PTR	`mail.itcube.jp`

`itcube.jp`

	DNSSEC	⚠️ Not signed
	A	183.90.231.65^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
	NS	`ns-875.awsdns-45.net` ⭐
	NS	`ns-1513.awsdns-61.org`
	NS	`ns-1564.awsdns-03.co.uk`
	NS	`ns-165.awsdns-20.com`
	MX	`mail4.itcube.jp` ⭐
	TXT	`google-site-verification=uCBclTGQCSLqkMH7GJ6vh_7MVh9xzvf02UY_U8cMsXc`
	TXT	`include:mdverno.maildealer.jp include:srs5739.cuenote.jp +a:sv264.xbiz.ne.jp ...`
	TXT	`v=spf1 +a +mx +a:smtp.goq.jp +ip4:211.125.90.207 69 +ip4:52.68.140.34 +ip4:1...`
	SOA	`ns-875.awsdns-45.net`awsdns-hostmaster@amazon.com serial=1

PTR for

3.153.192.52.in-addr.arpa

Previously MX for

itcube.jp

Same first word

mail.lib.wy.us

mail.pictures

mail.gov.kg

mail.ag

mail.hk

mail.win

mail.net

mail.ne.kr

mail.support

mail.de

mail.hacca.jp

mail.moo.jp

mail.new

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mail.gov.al

mail.kapsi.fi

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mail.gov.az

mail.io

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mail.blogspot.be

mail.go.kr

mail.my-gateway.de

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mail.microsoft

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mail.org.in

mail.deals

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mail.cm

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mail.mysecuritycamera.net

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mail.ge

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mail.run

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mail.uz

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mail.hl.cn

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mail.gov.om

mail.canon

mail.net.hk

mail.as

mail.ir

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mail.cz

mail.so

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amil.cn

mali.at

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liam.biz

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amli.work

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imal.de

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lima.info

aiml.digital

lima.eu

DNS History

3 records (1 active, 2 former)

○A219.94.176.1342015-07-23 → 2015-09-29 · 4 obs

● 2015-07-23 04:38:48
● 2015-09-29 19:26:36
○ 2015-11-25 13:56:02
○ 2026-05-09 06:06:04

●A52.192.153.32026-04-06 → 2026-05-09 · 3 obs

○ 2017-01-06 07:16:46
● 2026-04-06 15:31:58
● 2026-05-09 06:06:04

○A54.92.114.1912015-11-25 → 2017-01-06 · 5 obs

○ 2015-09-29 19:26:36
● 2015-11-25 13:56:02
● 2017-01-06 07:16:46
○ 2026-04-06 15:31:58
○ 2026-05-09 06:06:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	c.dns.jp, f.dns.jp, a.dns.jp, d.dns.jp...	-
itcube.jp	ns-1564.awsdns-03.co.uk, ns-1513.awsdns-61.org, ns-165.awsdns-20.com, ns-875.awsdns-45.net	-

✅ Authoritative Response

Server:205.251.198.28

NS records: ns-1564.awsdns-03.co.uk, ns-1513.awsdns-61.org, ns-165.awsdns-20.com, ns-875.awsdns-45.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for itcube.jp (unsigned zone)

⏱️ Timing

Total: 660ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`52.192.153.3`

Analysis

IP Addresses

mail.itcube.jp resolves to one IP number: 52.192.153.3.

other host names including ns.fujib.com, ec2-52-192-153-3.ap-northeast-1.compute.amazonaws.com, ns2.itcube.jp, ns1.itcube.ne.jp and mail.tabuse.itcube.ne.jp share IP numbers with mail.itcube.jp.

mail.itcube.jp - robtex.com

mail.itcube.jp

itcube.jp