`mail.knickerbocker.jp`

DNSSEC	⚠️ Not signed
A	219.99.172.183^{🇯🇵 FUTURE219.99.168.0/21 FS CIDR BLOCK ORIGIN-AS23824-interim}
		PTR	`servers07.dsbsv.net`

`knickerbocker.jp`

	DNSSEC	⚠️ Not signed
	A	219.99.172.191^{🇯🇵 FUTURE219.99.168.0/21 FS CIDR BLOCK ORIGIN-AS23824-interim}
	NS	`manage.asp-frontier.net` ⭐
	NS	`dns1.asp-frontier.net`
	NS	`dns2.asp-frontier.net`
	NS	`dns3.asp-frontier.net`
	MX	`mail.knickerbocker.jp` ⭐
	TXT	`v=spf1 +a +mx include:spfgw.fsi.ne.jp ~all`
	SOA	`manage.asp-frontier.net`root@manage.asp-frontier.net 2023-08-07 #2

MX for

knickerbocker.jp

Same first word

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DNS History

2 records (1 active, 1 former)

○A219.99.168.952015-08-19 → 2016-07-19 · 4 obs

● 2015-08-19 20:33:50
● 2016-07-19 11:06:36
○ 2026-02-27 17:12:04
○ 2026-05-13 12:41:34

●A219.99.172.1832026-02-27 → 2026-05-13 · 3 obs

○ 2016-07-19 11:06:36
● 2026-02-27 17:12:04
● 2026-05-13 12:41:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	f.dns.jp, h.dns.jp, a.dns.jp, g.dns.jp...	-
knickerbocker.jp	dns1.asp-frontier.net, dns2.asp-frontier.net, dns3.asp-frontier.net	-

✅ Authoritative Response

Server:219.99.172.38

NS records: dns1.asp-frontier.net, dns2.asp-frontier.net, dns3.asp-frontier.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knickerbocker.jp (unsigned zone)

⏱️ Timing

Total: 1276ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`219.99.172.183`

Analysis

Mail Server Role

mail.knickerbocker.jp is the mail server for knickerbocker.jp.

IP Addresses

mail.knickerbocker.jp points to a single IP number: 219.99.172.183.

other host names for instance mail.noxus.jp, mail.e-kyoushin.co.jp, mail.blue-f.net, singi.jp and mail.ss-d.co.jp share IP numbers with mail.knickerbocker.jp.

mail.knickerbocker.jp - robtex.com