workground.jp - dns.ninja

`workground.jp`

DNSSEC	⚠️ Not signed
A	160.251.12.97^{🇯🇵 GMO-INTERNET160.251.0.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
		PTR	`v160-251-12-97.s5lx.static.cnode.io`
NS	`workground.jp` ⭐
		A	160.251.12.97^{🇯🇵 GMO-INTERNET160.251.0.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`v160-251-12-97.s5lx.static.cnode.io`
NS	`dns01.muumuu-domain.com`
		A	202.239.23.39^{🇯🇵 IDC202.239.23.0/24 Frontier Inc.}
NS	`dns02.muumuu-domain.com`
		A	160.251.249.62^{🇯🇵 GMOOSK-NET160.251.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
MX	`35cfe35d79900c4db73aff95067bd9.pamx1.hotmail.com` ⭐
		A	52.101.9.4^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.11.14^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.40.5^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.41.27^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
TXT	`v=spf1 ip4:65.54.188.78 ip4:65.54.188.109 ~all`
TXT	`v=msv1 t=1d37d910136347bba6637f5f2ecb1e`
SOA	`workground.jp`postmaster@workground.jp serial=1592661107

`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=1785170702

NS for

workground.jp

Same first word

workground.jp

workground.ru

workground.net

workground.com

Similar names

DNS History

5 records (5 active, 0 former)

●NSdns01.muumuu-domain.com2015-08-18 → 2026-07-27 · 2 obs

● 2015-08-18 16:10:36
● 2026-07-27 17:48:18

●NSdns02.muumuu-domain.com2015-08-18 → 2026-07-27 · 2 obs

● 2015-08-18 16:10:36
● 2026-07-27 17:48:18

●NSworkground.jp2015-08-18 → 2026-07-27 · 2 obs

● 2015-08-18 16:10:36
● 2026-07-27 17:48:18

●MX35cfe35d79900c4db73aff95067bd9.pamx1.hotmail.com2015-08-18 → 2026-07-27 · 2 obs

● 2015-08-18 16:10:36
● 2026-07-27 17:48:18

●A160.251.12.972026-04-15 → 2026-07-27 · 2 obs

● 2026-04-15 04:25:38
● 2026-07-27 17:48:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...	-
workground.jp	dns01.muumuu-domain.com, dns02.muumuu-domain.com	-

✅ Authoritative Response

Server:160.251.249.62

NS records: dns01.muumuu-domain.com, dns02.muumuu-domain.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workground.jp (unsigned zone)

⏱️ Timing

Total: 1209ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`160.251.12.97`
NS	2	`dns01.muumuu-domain.com, dns02.muumuu-domain.com`
MX	1	`35cfe35d79900c4db73aff95067bd9.pamx1.hot`
TXT	2	`v=spf1 ip4:65.54.188.78 ip4:65.54.188.10, v=msv1 t=1d37d910136347bba6637f5f2ecb1e`
SOA	1	`workground.jp postmaster.workground.jp`

Analysis

Name Server Role

workground.jp has workground.jp as one of its name servers, making it self-hosted for DNS delegation.

dns01.muumuu-domain.com, dns02.muumuu-domain.com and workground.jp regularly act as name servers together.

IP Addresses

workground.jp directs to one IP number, which is 160.251.12.97.

gushi.jp and v160-251-12-97.s5lx.static.cnode.io, along with other host names, share IP addresses with workground.jp.

Name Servers

Authority for workground.jp is delegated across three name servers: workground.jp, dns01.muumuu-domain.com and dns02.muumuu-domain.com.

workground.jp partially shares its NS delegation with several other domains, including nasu-fc.com, 27cafe-bymarion.com, e-projapan.com and two others.

workground.jp points to 160.251.12.97; dns01.muumuu-domain.com points to 202.239.23.39; dns02.muumuu-domain.com points to 160.251.249.62 — each hostname maps to exactly one IP address.

Mail Servers

workground.jp routes its mail through a single mail server, 35cfe35d79900c4db73aff95067bd9.pamx1.hotmail.com.

The host 35cfe35d79900c4db73aff95067bd9.pamx1.hotmail.com directs to four IP numbers: 52.101.9.4, 52.101.11.14, 52.101.40.5 and 52.101.41.27.