`sumutoko.net`

DNSSEC	⚠️ Not signed
A	153.122.205.51^{🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
NS	`ns3.ymc.ne.jp` ⭐
		A	157.120.112.215^{🇯🇵 GMOHS-CL157.120.112.0/24 GMO GlobalSign Holdings K.K.}
		A	157.120.113.215^{🇯🇵 GMOHS-CL157.120.113.0/24 GMO GlobalSign Holdings K.K.}
		A	157.120.114.215^{🇯🇵 GMOHS-CL157.120.114.0/24 GMO GlobalSign Holdings K.K.}
NS	`ns4.ymc.ne.jp`
		A	157.120.112.215^{🇯🇵 GMOHS-CL157.120.112.0/24 GMO GlobalSign Holdings K.K.}
		A	157.120.113.215^{🇯🇵 GMOHS-CL157.120.113.0/24 GMO GlobalSign Holdings K.K.}
		A	157.120.114.215^{🇯🇵 GMOHS-CL157.120.114.0/24 GMO GlobalSign Holdings K.K.}
MX	`mx.sumutoko.net` ⭐
		A	153.122.206.94^{🇯🇵 AS131921153.122.192.0/20 GMO CLOUD K.K. GMO GlobalSign Holdings K.K.}
TXT	`v=spf1 include:_spf.shared-server.net ~all`
SOA	`ns3.ymc.ne.jp`root@ymc.ne.jp serial=2698686490

`net`

	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=1774452922

Subdomains

mx.sumutoko.net

Same first word

sumutoko.net

sumutoko.com

Similar names

kusumoto.co.jp

sumukoto.com

kusumoto.net

kusumoto.com

DNS History

11 records (4 active, 7 former)

○NSns2.ymc.ne.jp2007-09-24 → 2018-01-21 · 3 obs

● 2007-09-24 23:54:38
● 2018-01-21 15:24:14
○ 2026-03-25 16:02:12

●NSns3.ymc.ne.jp2026-03-25 → 2026-03-25 · 2 obs

○ 2018-01-21 15:24:14
● 2026-03-25 16:02:12

●NSns4.ymc.ne.jp2026-03-25 → 2026-03-25 · 2 obs

○ 2018-01-21 15:24:14
● 2026-03-25 16:02:12

○NSrss63.ymc.ne.jp2007-09-24 → 2018-01-21 · 3 obs

● 2007-09-24 23:54:38
● 2018-01-21 15:24:14
○ 2026-03-25 16:02:12

○NSsumutoko.net2015-06-27 → 2018-01-21 · 4 obs

○ 2007-09-24 23:54:38
● 2015-06-27 22:49:52
● 2018-01-21 15:24:14
○ 2026-03-25 16:02:12

●MXmx.sumutoko.net2026-03-25 → 2026-03-25 · 2 obs

○ 2018-01-21 15:24:14
● 2026-03-25 16:02:12

○MXvcgw1.ymc.ne.jp2007-09-24 → 2018-01-21 · 3 obs

● 2007-09-24 23:54:38
● 2018-01-21 15:24:14
○ 2026-03-25 16:02:12

○MXvcgw2.ymc.ne.jp2007-09-24 → 2018-01-21 · 3 obs

● 2007-09-24 23:54:38
● 2018-01-21 15:24:14
○ 2026-03-25 16:02:12

●A153.122.205.512026-03-25 → 2026-03-25 · 2 obs

○ 2018-01-21 15:24:14
● 2026-03-25 16:02:12

○A153.122.38.262015-06-27 → 2018-01-21 · 4 obs

○ 2007-09-24 23:54:38
● 2015-06-27 22:49:52
● 2018-01-21 15:24:14
○ 2026-03-25 16:02:12

○A61.201.193.432007-09-24 → 2007-09-24 · 3 obs

● 2007-09-24 23:54:38
○ 2015-06-27 22:49:52
○ 2026-03-25 16:02:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sumutoko.net	ns3.ymc.ne.jp, ns4.ymc.ne.jp	-

✅ Authoritative Response

Server:157.120.112.215

NS records: ns3.ymc.ne.jp, ns4.ymc.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sumutoko.net (unsigned zone)

⏱️ Timing

Total: 1094ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`153.122.205.51`
NS	2	`ns4.ymc.ne.jp, ns3.ymc.ne.jp`
MX	1	`mx.sumutoko.net (pri: 100)`
TXT	1	`v=spf1 include:_spf.shared-server.net ~a`
SOA	1	`ns3.ymc.ne.jp root.ymc.ne.jp`

Analysis

Hierarchy

mx.sumutoko.net has sumutoko.net as its parent.

IP Addresses

sumutoko.net maps to IP address 153.122.205.51.

Other host names, for instance obara-naika.com, do(0x73686974)sukiso.co.jp, kimura-seikei.com, moroko.jp and 1011.jp share IP numbers with sumutoko.net.

Name Servers

Two name servers ns3.ymc.ne.jp and ns4.ymc.ne.jp are delegated to sumutoko.net.

sumutoko.net uses the same name server configuration as other domains, such as skhole.com, shigisan.org, ascendant.jp, kurashige.jp and shigemoto.or.jp.