`groupsession.jp`

DNSSEC	⚠️ Not signed
A	153.126.215.51^{🇯🇵 SAKURA-A153.126.128.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
		PTR	`groupsession.jp`
NS	`ns6-tk01.ocn.ad.jp` ⭐
		A	2001:380::1053^{🇯🇵 OCN2001:380::/32 IPv6 Network, Japan}
			PTR	`ns6-tk01.ocn.ad.jp`
		A	61.207.9.4^{🇯🇵 OCN61.207.0.0/16 (AS4713) CIDR BLOCK 33 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN}
			PTR	`ns6-tk01.ocn.ad.jp`
NS	`ns6-tk02.ocn.ad.jp`
		A	2001:380:0:1::1053^{🇯🇵 OCN2001:380::/32 IPv6 Network, Japan}
			PTR	`ns6-tk02.ocn.ad.jp`
		A	61.207.9.36^{🇯🇵 OCN61.207.0.0/16 (AS4713) CIDR BLOCK 33 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN}
			PTR	`ns6-tk02.ocn.ad.jp`
TXT	`google-site-verification=HY1LMIrP7y-6TGCFyKB507YxTwu85Vmjj80wAjnhs4U`
SOA	`ns6-tk01.ocn.ad.jp`root@ocn.ad.jp 2026-03-24 #2

`jp`

	DNSSEC	🔒 Signed (DS record present)
	NS	`z.dns.jp` ⭐
	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`c.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`
	NS	`h.dns.jp`
	SOA	`z.dns.jp`root@dns.jp serial=1774370702

PTR for

51.215.126.153.in-addr.arpa

Subdomains

demo.groupsession.jp

Same first word

groupsession.jp

Similar names

sessiongroup.com

DNS History

4 records (3 active, 1 former)

●NSns6-tk01.ocn.ad.jp2016-12-05 → 2026-03-24 · 2 obs

● 2016-12-05 02:23:34
● 2026-03-24 17:01:48

●NSns6-tk02.ocn.ad.jp2016-12-05 → 2026-03-24 · 2 obs

● 2016-12-05 02:23:34
● 2026-03-24 17:01:48

●A153.126.215.512026-02-27 → 2026-03-24 · 3 obs

○ 2017-11-25 16:14:24
● 2026-02-27 19:56:16
● 2026-03-24 17:01:48

○A160.16.107.2192016-12-05 → 2017-11-25 · 4 obs

● 2016-12-05 02:23:34
● 2017-11-25 16:14:24
○ 2026-02-27 19:56:16
○ 2026-03-24 17:01:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
groupsession.jp	ns6-tk01.ocn.ad.jp, ns6-tk02.ocn.ad.jp	-

✅ Authoritative Response

Server:61.207.9.36

NS records: ns6-tk01.ocn.ad.jp, ns6-tk02.ocn.ad.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for groupsession.jp (unsigned zone)

⏱️ Timing

Total: 1619ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`153.126.215.51`
NS	2	`ns6-tk02.ocn.ad.jp, ns6-tk01.ocn.ad.jp`
TXT	1	`google-site-verification=HY1LMIrP7y-6TGC`
SOA	1	`ns6-tk01.ocn.ad.jp root.ocn.ad.jp`

Analysis

Hierarchy

groupsession.jp is a parent of demo.groupsession.jp.

IP Addresses

groupsession.jp points to a single IP address: 153.126.215.51.

Name Servers

groupsession.jp is delegated to two name servers: ns6-tk01.ocn.ad.jp and ns6-tk02.ocn.ad.jp.

groupsession.jp uses the same name server setup as other domains, including institutfrancais.jp, yutakadenki.co.jp, tmhp.jp, oomotoshiryo.co.jp and 112.186.32.60.in-addr.arpa.

At least part of the name servers for groupsession.jp are shared with other domains, for instance doboku-bousai.pref.niigata.jp, mirait.jp, starbb.jp, els.gr.jp and toa.jp.

Host names with two IP numbers:

ns6-tk01.ocn.ad.jp points to 2001:380::1053 and 61.207.9.4.

ns6-tk02.ocn.ad.jp points to 2001:380:0:1::1053 and 61.207.9.36.

groupsession.jp - robtex.com

groupsession.jp

jp