`mx.concave.jp`

	DNSSEC	⚠️ Not signed
	A	153.122.206.114^{🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}

`concave.jp`

	DNSSEC	⚠️ Not signed
	A	153.122.205.2^{🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
	NS	`ns1.value-domain.com` ⭐
	NS	`ns2.value-domain.com`
	NS	`ns3.value-domain.com`
	NS	`ns4.value-domain.com` ⚠️ Not in zone NS records
	NS	`ns5.value-domain.com` ⚠️ Not in zone NS records
	MX	`mx.concave.jp` ⭐
	MX	`smtp.concave.jp`⁽²⁰⁾
	TXT	`google-site-verification=MJhPVF46byDvbvQ2KvX_j0I23saZPYozaFKV2JMqXdM`
	TXT	`v=spf1 include:sendgrid.net +ip4:153.122.206.0/24 ~all`
	SOA	`ns1.value-domain.com`hostmaster@concave.jp 2025-06-03 #17

MX for

concave.jp

Same first word

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mx.is

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mx.design

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mx.msk.ru

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xm.be

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xm.nl

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mx.fi

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DNS History

2 records (1 active, 1 former)

●A153.122.206.1142026-02-18 → 2026-03-26 · 3 obs

○ 2016-11-19 03:04:28
● 2026-02-18 17:32:30
● 2026-03-26 19:28:20

○A211.13.204.42015-05-20 → 2016-11-19 · 4 obs

● 2015-05-20 23:59:04
● 2016-11-19 03:04:28
○ 2026-02-18 17:32:30
○ 2026-03-26 19:28:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...	-
concave.jp	ns2.value-domain.com, ns1.value-domain.com, ns3.value-domain.com, ns4.value-domain.com...	-

✅ Authoritative Response

Server:172.64.52.38

NS records: ns2.value-domain.com, ns1.value-domain.com, ns3.value-domain.com, ns4.value-domain.com, ns5.value-domain.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for concave.jp (unsigned zone)

⏱️ Timing

Total: 937ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`153.122.206.114`

Analysis

Mail Server Role

mx.concave.jp is the mail server for concave.jp.

With mx.concave.jp, smtp.concave.jp is commonly used as a mail server.

IP Addresses

mx.concave.jp maps to IP address 153.122.206.114.

Other host names, for instance mx.gijou.jp, mx.konomi-dc.net, mx.i-union.net, mx.juapro.com and mx.gaiapile-east.com share IP numbers with mx.concave.jp.

mx.concave.jp - robtex.com

mx.concave.jp

concave.jp