`asobu-training.com`

DNSSEC	⚠️ Not signed
A	157.112.149.17^{🇯🇵 XSERVER-AS157.112.144.0/21 XSERVER Inc.}
		PTR	`sv216.sixcore.ne.jp`
NS	`ns1.sixcore.ne.jp` ⭐
		A	202.226.36.232^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns1.sixcore.ne.jp`
NS	`ns2.sixcore.ne.jp`
		A	202.226.39.241^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns2.sixcore.ne.jp`
NS	`ns3.sixcore.ne.jp`
		A	202.226.37.248^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns3.sixcore.ne.jp`
MX	`asobu-training.com` ⭐
		A	157.112.149.17^{🇯🇵 XSERVER-AS157.112.144.0/21 XSERVER Inc.}
			PTR	`sv216.sixcore.ne.jp`
TXT	`google-site-verification=KJGhPa1UhYuGBCcyOgQUFXlZ_05OnCV2nX1MsY-S7SE`
TXT	`v=spf1 +a:sv216.sixcore.ne.jp +a:asobu-training.com +mx include:spf.sender.xs...`
SOA	`ns1.sixcore.ne.jp`root@sixcore.ne.jp serial=0

`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=1776084372

MX for

asobu-training.com

Same first word

asobu-training.com

DNS History

5 records (5 active, 0 former)

●NSns1.sixcore.ne.jp2026-03-09 → 2026-04-13 · 2 obs

● 2026-03-09 16:59:12
● 2026-04-13 12:49:58

●NSns2.sixcore.ne.jp2026-03-09 → 2026-04-13 · 2 obs

● 2026-03-09 16:59:12
● 2026-04-13 12:49:58

●NSns3.sixcore.ne.jp2026-03-09 → 2026-04-13 · 2 obs

● 2026-03-09 16:59:12
● 2026-04-13 12:49:58

●MXasobu-training.com2026-03-09 → 2026-04-13 · 2 obs

● 2026-03-09 16:59:12
● 2026-04-13 12:49:58

●A157.112.149.172026-03-09 → 2026-04-13 · 2 obs

● 2026-03-09 16:59:12
● 2026-04-13 12:49:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
asobu-training.com	ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp	-

✅ Authoritative Response

Server:202.226.37.248

NS records: ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for asobu-training.com (unsigned zone)

⏱️ Timing

Total: 1148ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`157.112.149.17`
NS	3	`ns3.sixcore.ne.jp, ns1.sixcore.ne.jp...`
MX	1	`asobu-training.com (pri: 0)`
TXT	2	`google-site-verification=KJGhPa1UhYuGBCc, v=spf1 +a:sv216.sixcore.ne.jp +a:asobu-t`
SOA	1	`ns1.sixcore.ne.jp root.sixcore.ne.jp`

Analysis

Mail Server Role

The mail server for asobu-training.com is asobu-training.com.

IP Addresses

asobu-training.com maps to IP address 157.112.149.17.

Other host names, for instance add-web.net, maruya-gardens.com, maruya.co.jp, www.sca-j.co.jp and marusho-transport.jp share IP numbers with asobu-training.com.

Name Servers

asobu-training.com is delegated to name servers ns1.sixcore.ne.jp, ns2.sixcore.ne.jp and ns3.sixcore.ne.jp.

asobu-training.com at least partially shares name servers with other domains such as kashijimusho4600.com, jfd.jp, yafjp.org, team-mho.com and atamisou.com.

Host names with a single IP:

ns1.sixcore.ne.jp points to 202.226.36.232

ns2.sixcore.ne.jp points to 202.226.39.241

ns3.sixcore.ne.jp points to 202.226.37.248

Mail Servers

One mail server serves asobu-training.com.

asobu-training.com points to one IP number: 157.112.149.17.

asobu-training.com - robtex.com