`school-commute.jp`

DNSSEC	⚠️ Not signed
A	133.242.211.166^{🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
		PTR	`mail.school-commute.jp`
NS	`master.dns.ne.jp` ⭐
		A	210.224.172.18^{🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`master.dns.ne.jp`
NS	`ns1.dns.ne.jp`
		A	61.211.236.1^{🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`ns1.dns.ne.jp`
NS	`ns2.dns.ne.jp`
		A	133.167.21.1^{🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan}
			PTR	`ns2.dns.ne.jp`
MX	`mail.school-commute.jp` ⭐
		A	133.242.211.166^{🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
			PTR	`mail.school-commute.jp`
TXT	`v=spf1 a:mail.school-commute.jp mx ~all`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2026-03-09 #8

`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=1786692603

Subdomains

mail.school-commute.jp

Same first word

school-commute.jp

DNS History

5 records (5 active, 0 former)

●NSmaster.dns.ne.jp2026-03-19 → 2026-08-14 · 2 obs

● 2026-03-19 11:55:56
● 2026-08-14 07:38:52

●NSns1.dns.ne.jp2026-03-19 → 2026-08-14 · 2 obs

● 2026-03-19 11:55:56
● 2026-08-14 07:38:52

●NSns2.dns.ne.jp2026-03-19 → 2026-08-14 · 2 obs

● 2026-03-19 11:55:56
● 2026-08-14 07:38:52

●MXmail.school-commute.jp2026-03-19 → 2026-08-14 · 2 obs

● 2026-03-19 11:55:56
● 2026-08-14 07:38:52

●A133.242.211.1662026-03-19 → 2026-08-14 · 2 obs

● 2026-03-19 11:55:56
● 2026-08-14 07:38:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...	-
school-commute.jp	ns2.dns.ne.jp, ns1.dns.ne.jp	2 records

✅ Authoritative Response

Server:61.211.236.1

NS records: ns2.dns.ne.jp, ns1.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for school-commute.jp (unsigned zone)

⏱️ Timing

Total: 906ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`133.242.211.166`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	1	`mail.school-commute.jp (pri: 10)`
TXT	1	`v=spf1 a:mail.school-commute.jp mx ~all`
SOA	1	`master.dns.ne.jp tech.sakura.ad.jp`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.dns.ne.jp, ns2.dns.ne.jp)

Analysis

Hierarchy

The domain mail.school-commute.jp falls under the parent school-commute.jp.

IP Addresses

school-commute.jp resolves to one IP address: 133.242.211.166.

Other host names, among them www4392gj.sakura.ne.jp and mail.school-commute.jp, have IP numbers in common with school-commute.jp.

Name Servers

DNS for school-commute.jp is handled by three authoritative name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

At least some of school-commute.jp's name servers are shared with other domains, for example nishidendenso.co.jp, amusement-jp.com, yoshinosou.jp and two more.

These name servers tend to be used in conjunction with the name servers dns.sakura.ad.jp.

master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp all have one IP address each — master.dns.ne.jp directs to 210.224.172.18, ns1.dns.ne.jp directs to 61.211.236.1 and ns2.dns.ne.jp directs to 133.167.21.1.

Mail Servers

Mail for school-commute.jp is handled by a single mail server, mail.school-commute.jp.

mail.school-commute.jp has exactly one IP number: 133.242.211.166.

school-commute.jp - robtex.com