mail.secdev.jp - dns.ninja

`mail.secdev.jp`

DNSSEC	⚠️ Not signed
A	163.44.110.109^{🇯🇵 GMOOSK-NET163.44.110.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
		PTR	`v163-44-110-109.zyom.static.cnode.jp`
MX	`mail.secdev.jp` ⭐
		A	163.44.110.109^{🇯🇵 GMOOSK-NET163.44.110.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`v163-44-110-109.zyom.static.cnode.jp`

`secdev.jp`

	DNSSEC	⚠️ Not signed
	A	163.44.110.109^{🇯🇵 GMOOSK-NET163.44.110.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
	NS	`01.dnsv.jp` ⭐
	NS	`02.dnsv.jp`
	NS	`03.dnsv.jp`
	NS	`04.dnsv.jp`
	TXT	`v=spf1 ip4:163.44.110.109 ~all`
	SOA	`01.dnsv.jp`hostmaster@dnsv.jp serial=1762906553

MX for

mail.secdev.jp

Previously MX for

secdev.jp

Same first word

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DNS History

3 records (2 active, 1 former)

●MXmail.secdev.jp2026-06-17 → 2026-06-21 · 2 obs

● 2026-06-17 18:05:20
● 2026-06-21 21:22:28

○A157.7.199.1932015-08-06 → 2016-06-25 · 4 obs

● 2015-08-06 11:10:38
● 2016-06-25 09:41:04
○ 2026-06-17 18:05:20
○ 2026-06-21 21:22:28

●A163.44.110.1092026-06-17 → 2026-06-21 · 3 obs

○ 2016-06-25 09:41:04
● 2026-06-17 18:05:20
● 2026-06-21 21:22:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	f.dns.jp, a.dns.jp, d.dns.jp, h.dns.jp...	-
secdev.jp	01.dnsv.jp, 04.dnsv.jp, 03.dnsv.jp, 02.dnsv.jp	7 records

✅ Authoritative Response

Server:157.7.34.53

NS records: 01.dnsv.jp, 04.dnsv.jp, 03.dnsv.jp, 02.dnsv.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for secdev.jp (unsigned zone)

⏱️ Timing

Total: 737ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`163.44.110.109`
MX	1	`mail.secdev.jp (pri: 10)`

📌 Glue Records Collected

Total: 7

Out-of-bailiwick: 7 (04.dnsv.jp, 03.dnsv.jp, 02.dnsv.jp...)

Analysis

Mail Server Role

mail.secdev.jp serves as a mail server for mail.secdev.jp.

IP Addresses

mail.secdev.jp has exactly one IP address — 163.44.110.109.

Among the host names that share IP numbers with mail.secdev.jp is secdev.jp, as one example.

Mail Servers

mail.secdev.jp uses exactly one mail server, which is mail.secdev.jp.

mail.secdev.jp resolves to 163.44.110.109 and no other IP number.