java.co.jp - dns.ninja

`java.co.jp`

DNSSEC	⚠️ Not signed
NS	`01.dnsv.jp` ⭐
		A	2400:8500:3300::53^{🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc.}
			PTR	`01.dnsv.jp`
		A	157.7.32.53^{🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team.}
			PTR	`01.dnsv.jp`
NS	`02.dnsv.jp`
		A	157.7.33.53^{🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team.}
			PTR	`02.dnsv.jp`
NS	`03.dnsv.jp`
		A	2400:8500:3000::53^{🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc.}
			PTR	`03.dnsv.jp`
		A	157.7.34.53^{🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team.}
			PTR	`03.dnsv.jp`
NS	`04.dnsv.jp`
		A	2400:8500:3fff::53^{🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc.}
			PTR	`04.dnsv.jp`
		A	157.7.35.53^{🇯🇵 GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team.}
			PTR	`04.dnsv.jp`
MX	`java-co-jp.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:cc1a::^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-tycp286cu02600.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1f::^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-os9p286cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1f::1^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-os0p286cu01201.inbound.protection.outlook.com`
		A	2a01:111:f403:cc24::^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-os0p286cu01300.inbound.protection.outlook.com`
		A	52.101.124.1^{🇯🇵 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ty3p286cu00101.inbound.protection.outlook.com`
		A	52.101.124.5^{🇯🇵 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-tyvp286cu00305.inbound.protection.outlook.com`
		A	52.101.124.6^{🇯🇵 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-tyvp286cu00206.inbound.protection.outlook.com`
		A	52.101.157.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-os0p286cu01302.inbound.protection.outlook.com`
TXT	`MS=ms67224828`
TXT	`v=spf1 include:spf.protection.outlook.com ~all`
SOA	`01.dnsv.jp`hostmaster@dnsv.jp serial=1656995918

`co.jp`

	DNSSEC	⚠️ Not signed
	TXT	`co.jp.`

WOT: SAFE (58/100)

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DNS History

7 records (5 active, 2 former)

●NS01.dnsv.jp2026-03-24 → 2026-06-05 · 3 obs

○ 2017-07-18 01:22:36
● 2026-03-24 13:32:12
● 2026-06-05 10:42:02

●NS02.dnsv.jp2026-03-24 → 2026-06-05 · 3 obs

○ 2017-07-18 01:22:36
● 2026-03-24 13:32:12
● 2026-06-05 10:42:02

●NS03.dnsv.jp2026-03-24 → 2026-06-05 · 3 obs

○ 2017-07-18 01:22:36
● 2026-03-24 13:32:12
● 2026-06-05 10:42:02

●NS04.dnsv.jp2026-03-24 → 2026-06-05 · 3 obs

○ 2017-07-18 01:22:36
● 2026-03-24 13:32:12
● 2026-06-05 10:42:02

○NSdns01.win-sv.com2015-08-23 → 2017-07-18 · 4 obs

● 2015-08-23 16:41:54
● 2017-07-18 01:22:36
○ 2026-03-24 13:32:12
○ 2026-06-05 10:42:02

○NSdns02.win-sv.com2015-08-23 → 2017-07-18 · 4 obs

● 2015-08-23 16:41:54
● 2017-07-18 01:22:36
○ 2026-03-24 13:32:12
○ 2026-06-05 10:42:02

●MXjava-co-jp.mail.protection.outlook.com2026-03-24 → 2026-06-05 · 2 obs

● 2026-03-24 13:32:12
● 2026-06-05 10:42:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	g.dns.jp, d.dns.jp, c.dns.jp, e.dns.jp...	-
java.co.jp	02.dnsv.jp, 01.dnsv.jp, 04.dnsv.jp, 03.dnsv.jp	7 records

✅ Authoritative Response

Server:157.7.33.53

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for java.co.jp (unsigned zone)

⏱️ Timing

Total: 801ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`01.dnsv.jp, 02.dnsv.jp...`
MX	1	`java-co-jp.mail.protection.outlook.com (`
TXT	2	`MS=ms67224828, v=spf1 include:spf.protection.outlook.co`
SOA	1	`01.dnsv.jp hostmaster.dnsv.jp`

📌 Glue Records Collected

Total: 7

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

Analysis

Name Servers

Authority for java.co.jp is delegated across 4 name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.

java.co.jp partially shares its NS delegation with several other domains, including bpojapan.co.jp, wow-vr.com, hammer-price.jp and two others.

Hostnames that resolve to two IP addresses:

01.dnsv.jp resolves to two addresses: 157.7.32.53 and 2400:8500:3300::53.

03.dnsv.jp resolves to two addresses: 157.7.34.53 and 2400:8500:3000::53.

04.dnsv.jp resolves to two addresses: 157.7.35.53 and 2400:8500:3fff::53.

Host names with one IP number:

The hostname 02.dnsv.jp resolves to 157.7.33.53.

Mail Servers

Mail for java.co.jp is handled by a single mail server, java-co-jp.mail.protection.outlook.com.

java-co-jp.mail.protection.outlook.com resolves to 8 IP numbers — 52.101.124.1, 52.101.124.5, 52.101.124.6 plus five more.