computermusic.jp - dns.ninja

`computermusic.jp`

DNSSEC	⚠️ Not signed
A	183.90.248.7^{🇯🇵 XSERVER-AS183.90.240.0/20 XSERVER Inc.}
		PTR	`sv306.sixcore.ne.jp`
NS	`ns1.sixcore.ne.jp` ⭐
		A	202.226.36.232^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns1.sixcore.ne.jp`
NS	`ns2.sixcore.ne.jp`
		A	202.226.39.241^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns2.sixcore.ne.jp`
NS	`ns3.sixcore.ne.jp`
		A	202.226.37.248^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns3.sixcore.ne.jp`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	64.233.180.27^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f27.1e100.net`
			PTR	`pe-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`v=spf1 +a:sv306.sixcore.ne.jp +a:computermusic.jp +mx include:spf.sender.xser...`
SOA	`ns1.sixcore.ne.jp`root@sv0.sixcore.ne.jp serial=0

`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=1786411802

📈 Tranco rank: #699,546

Previously MX for

computermusic.jp

Subdomains

www.computermusic.jp

Same first word

computermusic.it

computermusic.com.cn

computermusic.org

computermusic.es

computermusic.asia

computermusic.com.hk

computermusic.cn

computermusic.co.uk

computermusic.jp

computermusic.at

Similar names

musiccomputer.com

musiccomputer.co.at

musiccomputer.net

DNS History

14 records (9 active, 5 former)

○NSmaster.dns.ne.jp2017-05-28 → 2017-05-28 · 3 obs

● 2017-05-28 23:09:56
○ 2026-03-05 19:33:34
○ 2026-08-11 01:50:44

○NSns1.dns.ne.jp2017-05-28 → 2017-05-28 · 3 obs

● 2017-05-28 23:09:56
○ 2026-03-05 19:33:34
○ 2026-08-11 01:50:44

●NSns1.sixcore.ne.jp2026-03-05 → 2026-08-11 · 3 obs

○ 2017-05-28 23:09:56
● 2026-03-05 19:33:34
● 2026-08-11 01:50:44

○NSns2.dns.ne.jp2017-05-28 → 2017-05-28 · 3 obs

● 2017-05-28 23:09:56
○ 2026-03-05 19:33:34
○ 2026-08-11 01:50:44

●NSns2.sixcore.ne.jp2026-03-05 → 2026-08-11 · 3 obs

○ 2017-05-28 23:09:56
● 2026-03-05 19:33:34
● 2026-08-11 01:50:44

●NSns3.sixcore.ne.jp2026-03-05 → 2026-08-11 · 3 obs

○ 2017-05-28 23:09:56
● 2026-03-05 19:33:34
● 2026-08-11 01:50:44

●MXalt1.aspmx.l.google.com2026-03-05 → 2026-08-11 · 3 obs

○ 2017-05-28 23:09:56
● 2026-03-05 19:33:34
● 2026-08-11 01:50:44

●MXalt2.aspmx.l.google.com2026-03-05 → 2026-08-11 · 3 obs

○ 2017-05-28 23:09:56
● 2026-03-05 19:33:34
● 2026-08-11 01:50:44

●MXalt3.aspmx.l.google.com2026-03-05 → 2026-08-11 · 3 obs

○ 2017-05-28 23:09:56
● 2026-03-05 19:33:34
● 2026-08-11 01:50:44

●MXalt4.aspmx.l.google.com2026-03-05 → 2026-08-11 · 3 obs

○ 2017-05-28 23:09:56
● 2026-03-05 19:33:34
● 2026-08-11 01:50:44

●MXaspmx.l.google.com2026-03-05 → 2026-08-11 · 3 obs

○ 2017-05-28 23:09:56
● 2026-03-05 19:33:34
● 2026-08-11 01:50:44

○MXcomputermusic.jp2017-05-28 → 2017-05-28 · 3 obs

● 2017-05-28 23:09:56
○ 2026-03-05 19:33:34
○ 2026-08-11 01:50:44

●A183.90.248.72026-03-05 → 2026-08-11 · 3 obs

○ 2017-05-28 23:09:56
● 2026-03-05 19:33:34
● 2026-08-11 01:50:44

○A49.212.180.382017-05-28 → 2017-05-28 · 3 obs

● 2017-05-28 23:09:56
○ 2026-03-05 19:33:34
○ 2026-08-11 01:50:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
computermusic.jp	ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp	3 records

✅ Authoritative Response

Server:202.226.37.248

NS records: ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for computermusic.jp (unsigned zone)

⏱️ Timing

Total: 1033ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.90.248.7`
NS	3	`ns1.sixcore.ne.jp, ns3.sixcore.ne.jp...`
MX	5	`alt3.aspmx.l.google.com (pri: 10), alt4.aspmx.l.google.com (pri: 10)...`
TXT	1	`v=spf1 +a:sv306.sixcore.ne.jp +a:compute`
SOA	1	`ns1.sixcore.ne.jp root.sv0.sixcore.ne.jp`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns3.sixcore.ne.jp, ns2.sixcore.ne.jp, ns1.sixcore.ne.jp)

Analysis

Hierarchy

The domain www.computermusic.jp falls under the parent computermusic.jp.

IP Addresses

computermusic.jp resolves to one IP address: 183.90.248.7.

ootsuka-print.com, jiki.jp, egaodegohan.com and two other host names share IP numbers with computermusic.jp.

Name Servers

computermusic.jp is delegated to three name servers: ns1.sixcore.ne.jp, ns2.sixcore.ne.jp and ns3.sixcore.ne.jp.

At least some of computermusic.jp's name servers are shared with other domains, for example riteway-jp.com, noahis.com, harada.tokyo and two more.

ns1.sixcore.ne.jp, ns2.sixcore.ne.jp and ns3.sixcore.ne.jp each resolve to a single IP address: ns1.sixcore.ne.jp resolves to 202.226.36.232, ns2.sixcore.ne.jp resolves to 202.226.39.241 and ns3.sixcore.ne.jp resolves to 202.226.37.248.

Mail Servers

computermusic.jp has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

computermusic.jp has at least partial mail server overlap with other domains such as devonm.com, tcf-uk.org, ns500699.ns500765.ns500699.ns500734.ns500699.ns500734.ns500693.ns500588.ns500588.ns500588.ns500699.ns500693.ns500683.ns500683.ns500612.ns500110.dtrkdll.com and two more.

These mail servers commonly co-occur with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.

Hostnames that resolve to two IP addresses:

aspmx.l.google.com points to 64.233.180.27 and 2607:f8b0:4004:c23::1b.

alt1.aspmx.l.google.com points to 192.178.234.26 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com points to 172.253.116.26 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com points to 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com points to 172.253.157.27 and 2a00:1450:400c:c23::1a.