`bridge.kakubundo.jp`

DNSSEC	⚠️ Not signed
MX	`mail.mba.co.jp` ⭐
		A	210.231.182.96^{🇯🇵 InfoSphere210.231.128.0/18 INFOSPHERE}
			PTR	`dns.mba.co.jp`

`kakubundo.jp`

	DNSSEC	⚠️ Not signed
	NS	`dns.mba.co.jp` ⭐
	NS	`ns4.sphere.ad.jp` ⚠️ Not in parent delegation
	MX	`mail.mba.co.jp` ⭐
	TXT	`MS=ms32953917`
	TXT	`v=spf1 +ip4:111.89.179.84 +ip4:210.231.182.96 +ip4:58.138.175.185 +ip4:58.138...`
	SOA	`dns.mba.co.jp`it-admin@mba.co.jp 2026-04-08 #1

Same first word

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DNS History

2 records (1 active, 1 former)

●MXmail.mba.co.jp2026-04-09 → 2026-04-23 · 2 obs

● 2026-04-09 06:47:30
● 2026-04-23 17:20:46

○A58.138.175.1142015-06-12 → 2016-08-10 · 4 obs

● 2015-06-12 20:32:06
● 2016-08-10 01:02:04
○ 2026-04-09 06:47:30
○ 2026-04-23 17:20:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
kakubundo.jp	dns.mba.co.jp	1 record

✅ Authoritative Response

Server:210.231.182.96

NS records: dns.mba.co.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kakubundo.jp (unsigned zone)

⏱️ Timing

Total: 867ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	1	`mail.mba.co.jp (pri: 10)`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (dns.mba.co.jp)

Analysis

Mail Servers

The mail.mba.co.jp mail server handles bridge.kakubundo.jp.

The mail server setup for bridge.kakubundo.jp is the same as that of other domains, for instance kakubundo.jp.

mail.mba.co.jp points to a single IP number: 210.231.182.96.

bridge.kakubundo.jp - robtex.com