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 → 2026-08-10 · 2 obs

● 2026-06-17 18:05:20
● 2026-08-10 16:52:52

○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
○ 2026-08-10 16:52:52

●A163.44.110.1092026-06-17 → 2026-08-10 · 3 obs

○ 2016-06-25 09:41:04
● 2026-06-17 18:05:20
● 2026-08-10 16:52:52

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:157.7.33.53

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for secdev.jp (unsigned zone)

⏱️ Timing

Total: 851ms | 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.

Additional host names — including v163-44-110-109.zyom.static.cnode.jp and secdev.jp — share IP numbers with mail.secdev.jp.

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.