`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` ⭐
		A	153.122.205.20^{🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
NS	`dnss10.so-net.ne.jp`
		A	210.139.255.1^{🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc.}
			PTR	`dnss10.so-net.ne.jp`
NS	`dnss11.so-net.ne.jp`
		A	210.139.255.17^{🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc.}
			PTR	`dnss11.so-net.ne.jp`
MX	`mx.seikyu-system.com` ⭐
		A	153.122.206.114^{🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
TXT	`v=spf1 include:_spf.shared-server.net +mx ~all`
SOA	`seikyu-system.com`hostmaster@seikyu-system.com serial=2602171610

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1778811906

NS for

seikyu-system.com

Same first word

seikyu-system.com

DNS History

7 records (5 active, 2 former)

●NSdnss10.so-net.ne.jp2015-08-21 → 2026-05-15 · 2 obs

● 2015-08-21 07:30:54
● 2026-05-15 02:50:56

●NSdnss11.so-net.ne.jp2015-08-21 → 2026-05-15 · 2 obs

● 2015-08-21 07:30:54
● 2026-05-15 02:50:56

●NSseikyu-system.com2015-08-21 → 2026-05-15 · 2 obs

● 2015-08-21 07:30:54
● 2026-05-15 02:50:56

●MXmx.seikyu-system.com2016-01-01 → 2026-05-15 · 2 obs

● 2016-01-01 05:10:18
● 2026-05-15 02:50:56

○A111.68.189.1122015-08-21 → 2015-08-21 · 3 obs

● 2015-08-21 07:30:54
○ 2016-01-01 05:10:18
○ 2026-05-15 02:50:56

●A153.122.205.202026-05-13 → 2026-05-15 · 3 obs

○ 2020-03-25 06:50:50
● 2026-05-13 08:21:30
● 2026-05-15 02:50:56

○A211.13.196.1392016-01-01 → 2020-03-25 · 5 obs

○ 2015-08-21 07:30:54
● 2016-01-01 05:10:18
● 2020-03-25 06:50:50
○ 2026-05-13 08:21:30
○ 2026-05-15 02:50:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, c.gtld-servers.net, e.gtld-servers.net, l.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: 1764ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`153.122.205.20`
NS	2	`dnss10.so-net.ne.jp, dnss11.so-net.ne.jp`
MX	1	`mx.seikyu-system.com (pri: 10)`
TXT	1	`v=spf1 include:_spf.shared-server.net +m`
SOA	1	`seikyu-system.com hostmaster.seikyu-syst`

Analysis

Name Server Role

seikyu-system.com serves as a name server for seikyu-system.com.

dnss10.so-net.ne.jp and dnss11.so-net.ne.jp are commonly used as name servers along with seikyu-system.com.

IP Addresses

seikyu-system.com resolves to a single IP address: 153.122.205.20.

Other host names including nozomifc.co.jp, el-cerebro.co.jp, bonvoyage-net.com, aokisan.net and aussie-fan.co.jp share IP numbers with seikyu-system.com.

Name Servers

seikyu-system.com is delegated to three name servers: seikyu-system.com, dnss10.so-net.ne.jp and dnss11.so-net.ne.jp.

seikyu-system.com at least partially shares name servers with other domains, including i-land.co.jp, motorhome.co.jp, cf-posh.com, world-prize.co.jp and sauce-d.jp.

Hostnames with a single IP:

seikyu-system.com points to: 153.122.205.20.

dnss10.so-net.ne.jp points to: 210.139.255.1.

dnss11.so-net.ne.jp points to: 210.139.255.17.

Mail Servers

seikyu-system.com is handled by a single mail server, mx.seikyu-system.com.

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

seikyu-system.com - robtex.com