`mx.seikyu-system.com`

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

`seikyu-system.com`

	DNSSEC	⚠️ Not signed
	A	153.122.205.20^{🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
	NS	`seikyu-system.com` ⭐
	NS	`dnss10.so-net.ne.jp`
	NS	`dnss11.so-net.ne.jp`
	MX	`mx.seikyu-system.com` ⭐
	TXT	`v=spf1 include:_spf.shared-server.net +mx ~all`
	SOA	`seikyu-system.com`hostmaster@seikyu-system.com serial=2602171610

MX for

seikyu-system.com

Same first word

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mx.nl

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xm.cm

mx.co.ua

DNS History

2 records (1 active, 1 former)

●A153.122.206.1142026-05-15 → 2026-05-15 · 3 obs

○ 2017-04-04 11:47:14
● 2026-05-15 02:50:54
● 2026-05-15 18:06:00

○A211.13.204.42017-04-04 → 2017-04-04 · 3 obs

● 2017-04-04 11:47:14
○ 2026-05-15 02:50:54
○ 2026-05-15 18:06:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
seikyu-system.com	dnss10.so-net.ne.jp, dnss11.so-net.ne.jp	-

✅ Authoritative Response

Server:210.139.255.17

NS records: dnss10.so-net.ne.jp, dnss11.so-net.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for seikyu-system.com (unsigned zone)

⏱️ Timing

Total: 1160ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`153.122.206.114`

Analysis

Mail Server Role

mx.seikyu-system.com acts as a mail server for seikyu-system.com.

IP Addresses

mx.seikyu-system.com points to a single IP number: 153.122.206.114.

Other host names, for instance mx.ackry.com, mx.musickan.com, mx.sugiko.com, mx.ayarino.co.jp and mx.sgjt.co.jp share IP numbers with mx.seikyu-system.com.

mx.seikyu-system.com - robtex.com