`tento.school`

DNSSEC	⚠️ Not signed
NS	`ns1.dns.ne.jp` ⚠️ Not in zone NS records
		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` ⚠️ Not in zone NS records
		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`

`school`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.school` ⭐
	NS	`v0n1.nic.school`
	NS	`v0n2.nic.school`
	NS	`v0n3.nic.school`
	NS	`v2n0.nic.school`
	NS	`v2n1.nic.school`
	SOA	`v0n0.nic.school`hostmaster@donuts.email serial=1774303986

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DNS History

5 records (2 active, 3 former)

○NSmaster.dns.ne.jp2016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 22:48:36
○ 2026-02-15 09:47:30
○ 2026-03-23 23:12:42

●NSns1.dns.ne.jp2016-12-10 → 2026-03-23 · 2 obs

● 2016-12-10 22:48:36
● 2026-03-23 23:12:42

●NSns2.dns.ne.jp2016-12-10 → 2026-03-23 · 2 obs

● 2016-12-10 22:48:36
● 2026-03-23 23:12:42

○MXtento.school2016-12-10 → 2026-02-15 · 3 obs

● 2016-12-10 22:48:36
● 2026-02-15 09:47:30
○ 2026-03-23 23:12:42

○A182.48.49.1992016-12-10 → 2026-02-15 · 3 obs

● 2016-12-10 22:48:36
● 2026-02-15 09:47:30
○ 2026-03-23 23:12:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
school	v0n1.nic.school, v0n0.nic.school, v0n3.nic.school, v2n0.nic.school...	12 records
tento.school	ns1.dns.ne.jp, ns2.dns.ne.jp	-

✅ Authoritative Response

Server:61.211.236.1

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tento.school (unsigned zone)

⏱️ Timing

Total: 2505ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v2n1.nic.school, v2n0.nic.school, v0n3.nic.school...)

Analysis

Name Servers

tento.school is delegated to two name servers ns1.dns.ne.jp and ns2.dns.ne.jp.

tento.school shares the same name server setup as other domains, for instance bangeya.com, wabi-sabi.sakura.ne.jp, xn--er-573a1isbf1441e2hs87j.jp, kurageshorin.com and 105cs-web.sakura.ne.jp.

tento.school at least partially shares name servers with other domains, for instance oh-smilecafe.jp, za3.sakura.ne.jp, aschome.net, tonmomo.net and yeep.jp.

These name servers are commonly used alongside master.dns.ne.jp and dns.sakura.ad.jp.

Host names with one IP number:

ns1.dns.ne.jp points to 61.211.236.1

ns2.dns.ne.jp points to 133.167.21.1

tento.school - robtex.com

tento.school

school