`mail.learning.web9.jp`

DNSSEC	⚠️ Not signed
A	153.126.161.96^{🇯🇵 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	`ik1-316-18342.vs.sakura.ne.jp`

`learning.web9.jp`

	DNSSEC	⚠️ Not signed
	A	153.126.161.96^{🇯🇵 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}
	MX	`mail.learning.web9.jp` ⭐

MX for

learning.web9.jp

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DNS History

1 record (1 active, 0 former)

●A153.126.161.962026-02-20 → 2026-08-02 · 2 obs

● 2026-02-20 11:53:54
● 2026-08-02 10:07:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	b.dns.jp, c.dns.jp, h.dns.jp, g.dns.jp...	-
web9.jp	ns1.naid.jp, ns2.naid.jp	1 record

✅ Authoritative Response

Server:153.126.177.251

NS records: ns1.naid.jp, ns2.naid.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for web9.jp (unsigned zone)

⏱️ Timing

Total: 1417ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`153.126.161.96`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns2.naid.jp)

Analysis

Mail Server Role

The mail server mail.learning.web9.jp processes email for learning.web9.jp.

IP Addresses

mail.learning.web9.jp resolves to just one IP address, 153.126.161.96.

Two other host names, along with mail.my.hustle.ne.jp, iruma-shikoren.hustle.ne.jp and rs18.naid.jp, also share IP numbers with mail.learning.web9.jp.

mail.learning.web9.jp - robtex.com