`jrsi.jp`

DNSSEC	⚠️ Not signed
NS	`ns1.jrsi.jp` ⭐
		A	106.184.52.66^{🇯🇵 KDDI106.184.0.0/18}
NS	`2nd.dnsv.jp` ⚠️ Not in zone NS records
		A	2400:8500:1301:2611:1001::142^{🇯🇵 GMO-INTERNET2400:8500:1000::/36 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`2nd.dnsv.jp`
		A	163.44.76.142^{🇯🇵 GMO-INTERNET163.44.64.0/19 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`2nd.dnsv.jp`
MX	`ns1.jrsi.jp` ⭐
		A	106.184.52.66^{🇯🇵 KDDI106.184.0.0/18}
SOA	`ns1.jrsi.jp`root@ns1.jrsi.jp 2025-08-02 #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=1783180803

Subdomains

ns1.jrsi.jp

Same first word

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DNS History

3 records (3 active, 0 former)

●NS2nd.dnsv.jp2026-05-16 → 2026-07-04 · 2 obs

● 2026-05-16 22:49:50
● 2026-07-04 16:53:38

●NSns1.jrsi.jp2026-05-16 → 2026-07-04 · 2 obs

● 2026-05-16 22:49:50
● 2026-07-04 16:53:38

●MXns1.jrsi.jp2026-05-16 → 2026-07-04 · 5 obs

● 2026-05-16 22:49:50
● 2026-06-11 18:26:08
○ 2026-06-30 20:25:54
● 2026-07-02 15:33:32
● 2026-07-04 16:53:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, d.dns.jp, g.dns.jp, f.dns.jp...	-
jrsi.jp	2nd.dnsv.jp, ns1.jrsi.jp	1 record

✅ Authoritative Response

Server:106.184.52.66

NS records: 2nd.dnsv.jp, ns1.jrsi.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jrsi.jp (unsigned zone)

⏱️ Timing

Total: 1796ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	1	`ns1.jrsi.jp`
MX	1	`ns1.jrsi.jp (pri: 10)`
SOA	1	`ns1.jrsi.jp root.ns1.jrsi.jp`

📌 Glue Records Collected

Total: 1

In-bailiwick: 1 (ns1.jrsi.jp)

Analysis

Hierarchy

ns1.jrsi.jp is a subdomain of jrsi.jp.

Name Servers

DNS delegation for jrsi.jp points to two name servers: 2nd.dnsv.jp and ns1.jrsi.jp.

The name servers of jrsi.jp overlap at least partially with those of other domains — among them 213.209.61.in-addr.arpa, doi-net.com, aozora-im.co.jp and two more.

These name servers commonly appear in delegations together with ns.attendex.net, inet14.tosis.co.jp, inet6.tosis.co.jp and 7 other.

Hostnames that resolve to two IP addresses:

2nd.dnsv.jp has two IP addresses: 163.44.76.142 and 2400:8500:1301:2611:1001::142.

Hosts with just one IP address:

ns1.jrsi.jp directs to 106.184.52.66.

Mail Servers

Mail for jrsi.jp is handled by a single mail server, ns1.jrsi.jp.

jrsi.jp - robtex.com

jrsi.jp

jp