computer-system.jp - dns.ninja

`computer-system.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	`computersystem-jp02b.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	52.101.124.0^{🇯🇵 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-tycp286cu02600.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`
		A	52.101.157.40^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-os9p286cu00100.inbound.protection.outlook.com`
TXT	`MS=ms78050577`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`01.dnsv.jp`hostmaster@dnsv.jp serial=1768302048

`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=1783705503

Subdomains

www.computer-system.jp

wwd.computer-system.jp

Same first word

computer-system.jp

computer-system.fr

computer-system.ch

computer-system.net

computer-system.com

computer-system.de

computer-system.ru

DNS History

9 records (5 active, 4 former)

●NS01.dnsv.jp2026-02-26 → 2026-07-10 · 3 obs

○ 2017-04-11 08:53:32
● 2026-02-26 20:05:44
● 2026-07-10 18:37:28

●NS02.dnsv.jp2026-02-26 → 2026-07-10 · 3 obs

○ 2017-04-11 08:53:32
● 2026-02-26 20:05:44
● 2026-07-10 18:37:28

●NS03.dnsv.jp2026-02-26 → 2026-07-10 · 3 obs

○ 2017-04-11 08:53:32
● 2026-02-26 20:05:44
● 2026-07-10 18:37:28

●NS04.dnsv.jp2026-02-26 → 2026-07-10 · 3 obs

○ 2017-04-11 08:53:32
● 2026-02-26 20:05:44
● 2026-07-10 18:37:28

○NS2nd.dnsv.jp2015-06-27 → 2017-04-11 · 4 obs

● 2015-06-27 02:38:52
● 2017-04-11 08:53:32
○ 2026-02-26 20:05:44
○ 2026-07-10 18:37:28

○NSns1.computer-system.jp2015-06-27 → 2017-04-11 · 4 obs

● 2015-06-27 02:38:52
● 2017-04-11 08:53:32
○ 2026-02-26 20:05:44
○ 2026-07-10 18:37:28

●MXcomputersystem-jp02b.mail.protection.outlook.com2026-02-26 → 2026-07-10 · 3 obs

○ 2017-04-11 08:53:32
● 2026-02-26 20:05:44
● 2026-07-10 18:37:28

○MXmail.computer-system.jp2015-06-27 → 2017-04-11 · 4 obs

● 2015-06-27 02:38:52
● 2017-04-11 08:53:32
○ 2026-02-26 20:05:44
○ 2026-07-10 18:37:28

○A203.196.23.1152015-06-27 → 2017-04-11 · 4 obs

● 2015-06-27 02:38:52
● 2017-04-11 08:53:32
○ 2026-02-26 20:05:44
○ 2026-07-10 18:37:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
computer-system.jp	01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp	7 records

✅ Authoritative Response

Server:157.7.32.53

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for computer-system.jp (unsigned zone)

⏱️ Timing

Total: 2557ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`01.dnsv.jp, 02.dnsv.jp...`
MX	1	`computersystem-jp02b.mail.protection.out`
TXT	2	`MS=ms78050577, v=spf1 include:spf.protection.outlook.co`
SOA	1	`01.dnsv.jp hostmaster.dnsv.jp`

📌 Glue Records Collected

Total: 7

Out-of-bailiwick: 7 (01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp...)

Analysis

Hierarchy

computer-system.jp is the parent domain of www.computer-system.jp and wwd.computer-system.jp.

Name Servers

computer-system.jp has four authoritative name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.

At least some of computer-system.jp's name servers are shared with other domains, for example kannax.co.jp, cocci.jp, orb.asia and two more.

Host names with two IP numbers:

01.dnsv.jp has two IP addresses: 157.7.32.53 and 2400:8500:3300::53.

03.dnsv.jp has two IP addresses: 157.7.34.53 and 2400:8500:3000::53.

04.dnsv.jp has two IP addresses: 157.7.35.53 and 2400:8500:3fff::53.

Host names pointing to a single IP address:

02.dnsv.jp directs to 157.7.33.53.

Mail Servers

computer-system.jp has one mail server: computersystem-jp02b.mail.protection.outlook.com.

computer-system.jp, iberaku.com and cssvr.com all share the same mail server setup.

computersystem-jp02b.mail.protection.outlook.com points to 8 IP numbers: 52.101.124.0, 52.101.124.6, 52.101.157.10 and 5 other.