`k-ryokusb.com`

DNSSEC	⚠️ Not signed
A	180.222.186.181^{🇯🇵 AS131921180.222.184.0/21 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
		PTR	`vega-hikari.jp`
NS	`ns2.namedserver.net` ⭐
		A	157.120.112.212^{🇯🇵 GMOHS-CL157.120.112.0/24 GMO GlobalSign Holdings K.K.}
		A	157.120.113.212^{🇯🇵 GMOHS-CL157.120.113.0/24 GMO GlobalSign Holdings K.K.}
		A	157.120.114.212^{🇯🇵 GMOHS-CL157.120.114.0/24 GMO GlobalSign Holdings K.K.}
NS	`ns.namedserver.net`
		A	157.120.112.212^{🇯🇵 GMOHS-CL157.120.112.0/24 GMO GlobalSign Holdings K.K.}
		A	157.120.113.212^{🇯🇵 GMOHS-CL157.120.113.0/24 GMO GlobalSign Holdings K.K.}
		A	157.120.114.212^{🇯🇵 GMOHS-CL157.120.114.0/24 GMO GlobalSign Holdings K.K.}
MX	`k-ryokusb.com` ⭐
		A	180.222.186.181^{🇯🇵 AS131921180.222.184.0/21 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
			PTR	`vega-hikari.jp`
MX	`mail.k-ryokusb.com` ⭐
		A	180.222.186.181^{🇯🇵 AS131921180.222.184.0/21 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
			PTR	`vega-hikari.jp`
TXT	`v=spf1 ip4:180.222.186.181 -all`
SOA	`ns.namedserver.net`root@namedserver.net serial=4

`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=1774527857

MX for

k-ryokusb.com

Subdomains

mail.k-ryokusb.com

Same first word

k-ryokusb.com

DNS History

6 records (5 active, 1 former)

●NSns.namedserver.net2016-12-21 → 2026-03-26 · 2 obs

● 2016-12-21 05:04:38
● 2026-03-26 12:35:00

●NSns2.namedserver.net2016-12-21 → 2026-03-26 · 2 obs

● 2016-12-21 05:04:38
● 2026-03-26 12:35:00

●MXk-ryokusb.com2016-12-21 → 2026-03-26 · 2 obs

● 2016-12-21 05:04:38
● 2026-03-26 12:35:00

●MXmail.k-ryokusb.com2016-12-21 → 2026-03-26 · 2 obs

● 2016-12-21 05:04:38
● 2026-03-26 12:35:00

○A180.222.185.302016-12-21 → 2016-12-21 · 3 obs

● 2016-12-21 05:04:38
○ 2017-09-25 10:23:30
○ 2026-03-26 12:35:00

●A180.222.186.1812017-09-25 → 2026-03-26 · 3 obs

○ 2016-12-21 05:04:38
● 2017-09-25 10:23:30
● 2026-03-26 12:35:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
k-ryokusb.com	ns.namedserver.net, ns2.namedserver.net	-

✅ Authoritative Response

Server:157.120.112.212

NS records: ns.namedserver.net, ns2.namedserver.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for k-ryokusb.com (unsigned zone)

⏱️ Timing

Total: 872ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`180.222.186.181`
NS	2	`ns.namedserver.net, ns2.namedserver.net`
MX	2	`mail.k-ryokusb.com (pri: 100), k-ryokusb.com (pri: 100)`
TXT	1	`v=spf1 ip4:180.222.186.181 -all`
SOA	1	`ns.namedserver.net root.namedserver.net`

Analysis

Hierarchy

k-ryokusb.com is the parent of mail.k-ryokusb.com.

Mail Server Role

k-ryokusb.com serves as the mail server for k-ryokusb.com.

mail.k-ryokusb.com is commonly used as a mail server with k-ryokusb.com.

IP Addresses

k-ryokusb.com resolves to a single IP address: 180.222.186.181.

Other host names including mail.sakatasangyou.co.jp, oginodenki.com, s-marutaka.jp, trust-bag.com and yamada-kk.net share IP numbers with k-ryokusb.com.

Name Servers

k-ryokusb.com's delegation uses two name servers, ns2.namedserver.net and ns.namedserver.net.

k-ryokusb.com shares the same name server setup as other domains, for example kikuta-tekko.co.jp, imcshainkai.com, 36.3.122.153.in-addr.arpa, sociocare-std.com and kansaihokenlife.co.jp.

k-ryokusb.com at least partially shares name servers with other domains, for example 209.95.125.211.in-addr.arpa, takamine.net and lifesensor.co.jp.

These name servers are commonly used with the name servers ns1.shsvr.netns2.shsvr.netns1.gmo-ht.comns2.gmo-ht.comns3.gmo-ht.com and ns4.gmo-ht.com.