`datapost-kp.jp`

DNSSEC	⚠️ Not signed
NS	`ns01.kpbss.jp` ⭐
		A	202.13.241.2^{🇯🇵 KDDI202.13.240.0/21 Kyodo Printing Co., Ltd}
			PTR	`ns01.kpbss.jp`
NS	`dns4.dion.ne.jp`
		A	210.172.64.112^{🇯🇵 KDDI210.172.64.0/18}
			PTR	`dns4.dion.ne.jp`
MX	`mail.datapost-kp.jp` ⭐
		A	118.238.4.1^{🇯🇵 So-net118.238.0.0/17 Sony Network Communications Inc.}
			PTR	`ip76ee0401.ap.nuro.jp`
MX	`sakura.datapost-kp.jp`⁽²⁰⁾
		A	160.16.63.49^{🇯🇵 SAKURA-B160.16.0.0/17 SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
			PTR	`sakura.datapost-kp.jp`
TXT	`v=spf1 +ip4:118.238.4.0/29 +ip4:124.35.234.114/32 -all`
SOA	`ns01.kpbss.jp`hostmaster@ics.ad.jp 2018-07-20 #4

`jp`

	DNSSEC	🔒 Signed (DS record present)
	NS	`z.dns.jp` ⭐
	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`c.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`
	NS	`h.dns.jp`
	SOA	`z.dns.jp`root@dns.jp serial=1776984303

Subdomains

mail.datapost-kp.jp

sakura.datapost-kp.jp

Same first word

datapost-kp.jp

DNS History

6 records (4 active, 2 former)

●NSdns4.dion.ne.jp2017-01-31 → 2026-04-23 · 3 obs

○ 2016-04-18 07:12:50
● 2017-01-31 06:40:46
● 2026-04-23 23:18:50

●NSns01.kpbss.jp2015-06-18 → 2026-04-23 · 2 obs

● 2015-06-18 23:11:42
● 2026-04-23 23:18:50

○NSns31.pwd.ne.jp2015-06-18 → 2016-04-18 · 4 obs

● 2015-06-18 23:11:42
● 2016-04-18 07:12:50
○ 2017-01-31 06:40:46
○ 2026-04-23 23:18:50

●MXmail.datapost-kp.jp2015-06-18 → 2026-04-23 · 2 obs

● 2015-06-18 23:11:42
● 2026-04-23 23:18:50

○MXmail2.datapost-kp.jp2015-06-18 → 2015-06-18 · 3 obs

● 2015-06-18 23:11:42
○ 2015-11-07 14:27:38
○ 2026-04-23 23:18:50

●MXsakura.datapost-kp.jp2015-11-07 → 2026-04-23 · 3 obs

○ 2015-06-18 23:11:42
● 2015-11-07 14:27:38
● 2026-04-23 23:18:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
datapost-kp.jp	dns4.dion.ne.jp, ns01.kpbss.jp	1 record

✅ Authoritative Response

Server:210.172.64.112

NS records: dns4.dion.ne.jp, ns01.kpbss.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for datapost-kp.jp (unsigned zone)

⏱️ Timing

Total: 1285ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns01.kpbss.jp, dns4.dion.ne.jp`
MX	2	`sakura.datapost-kp.jp (pri: 20), mail.datapost-kp.jp (pri: 10)`
TXT	1	`v=spf1 +ip4:118.238.4.0/29 +ip4:124.35.2`
SOA	1	`ns01.kpbss.jp hostmaster.ics.ad.jp`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns01.kpbss.jp)

Analysis

Hierarchy

datapost-kp.jp is a parent of mail.datapost-kp.jp and sakura.datapost-kp.jp.

Name Servers

datapost-kp.jp is delegated to two name servers: ns01.kpbss.jp and dns4.dion.ne.jp.

datapost-kp.jp uses the same name server setup as other domains, for example shinkuminet.com.

datapost-kp.jp at least partially shares name servers with other domains, for instance 48h.140.146.113.in-addr.arpa, 16h.206.126.211.in-addr.arpa, tobu.co.jp, geomatec.co.jp and ichinen-chem.co.jp.

These name servers are commonly used alongside ns31.pwd.ne.jp, ns02.kpbss.jp, nsx0.jfe-gr.net, nsx01.jfe-gr.net, nsx01u.jfe-gr.net, nsx02.jfe-gr.net, nsx02u.jfe-gr.net, nsx21.jfe-gr.net, nsx22.jfe-gr.net and ns1.jtg-net.jp.

Host names with a single IP:

ns01.kpbss.jp points to 202.13.241.2.

dns4.dion.ne.jp points to 210.172.64.112.

Mail Servers

datapost-kp.jp is handled by two mail servers: mail.datapost-kp.jp and sakura.datapost-kp.jp.