`81dojo.com`

DNSSEC	⚠️ Not signed
A	160.16.200.203^{🇯🇵 SAKURA-B160.16.128.0/17 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
		PTR	`81dojo.com`
NS	`81dojo.com` ⭐
		A	160.16.200.203^{🇯🇵 SAKURA-B160.16.128.0/17 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
			PTR	`81dojo.com`
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	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4023:c0d::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dl-in-f26.1e100.net`
		A	142.251.2.27^{🇺🇸 Google142.251.2.0/24}
			PTR	`ip-142-251-2-27.defastlink.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:4025:402::1a^{🇳🇱 Google2a00:1450:4025::/48}
			PTR	`rb-in-f26.1e100.net`
		A	142.250.102.26^{🇺🇸 Google142.250.102.0/24}
			PTR	`ip-142-250-102-26.defastlink.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:1015::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yudfwta-in-f26.1e100.net`
		A	172.253.135.26^{🇺🇸 Google172.253.135.0/24}
			PTR	`yudfwta-in-f26.1e100.net`
MX	`aspmx2.googlemail.com`⁽¹⁰⁾
		A	2a00:1450:4025:402::1a^{🇳🇱 Google2a00:1450:4025::/48}
			PTR	`rb-in-f26.1e100.net`
		A	142.250.102.26^{🇺🇸 Google142.250.102.0/24}
			PTR	`ip-142-250-102-26.defastlink.net`
MX	`aspmx3.googlemail.com`⁽¹⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
TXT	`v=spf1 ip4:160.16.200.203 include:_spf.google.com ~all`
SOA	`81dojo.com`postmaster@81dojo.com serial=1708264841

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774691507

NS for

81dojo.com

Subdomains

system.81dojo.com

Same first word

81dojo.com

DNS History

10 records (9 active, 1 former)

●NS81dojo.com2015-06-02 → 2026-03-28 · 2 obs

● 2015-06-02 17:14:04
● 2026-03-28 10:10:50

●NSdns01.muumuu-domain.com2015-06-02 → 2026-03-28 · 2 obs

● 2015-06-02 17:14:04
● 2026-03-28 10:10:50

●NSdns02.muumuu-domain.com2015-06-02 → 2026-03-28 · 2 obs

● 2015-06-02 17:14:04
● 2026-03-28 10:10:50

●MXalt1.aspmx.l.google.com2015-06-02 → 2026-03-28 · 2 obs

● 2015-06-02 17:14:04
● 2026-03-28 10:10:50

●MXalt2.aspmx.l.google.com2015-06-02 → 2026-03-28 · 2 obs

● 2015-06-02 17:14:04
● 2026-03-28 10:10:50

●MXaspmx.l.google.com2015-06-02 → 2026-03-28 · 2 obs

● 2015-06-02 17:14:04
● 2026-03-28 10:10:50

●MXaspmx2.googlemail.com2015-06-02 → 2026-03-28 · 2 obs

● 2015-06-02 17:14:04
● 2026-03-28 10:10:50

●MXaspmx3.googlemail.com2015-06-02 → 2026-03-28 · 2 obs

● 2015-06-02 17:14:04
● 2026-03-28 10:10:50

●A160.16.200.2032016-03-31 → 2026-03-28 · 3 obs

○ 2015-12-28 09:26:12
● 2016-03-31 00:38:00
● 2026-03-28 10:10:50

○A49.212.52.1512015-06-02 → 2015-12-28 · 4 obs

● 2015-06-02 17:14:04
● 2015-12-28 09:26:12
○ 2016-03-31 00:38:00
○ 2026-03-28 10:10:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
81dojo.com	dns01.muumuu-domain.com, dns02.muumuu-domain.com	2 records

✅ 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 81dojo.com (unsigned zone)

⏱️ Timing

Total: 580ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`160.16.200.203`
NS	2	`dns02.muumuu-domain.com, dns01.muumuu-domain.com`
MX	5	`ASPMX2.GOOGLEMAIL.com (pri: 10), ASPMX3.GOOGLEMAIL.com (pri: 10)...`
TXT	1	`v=spf1 ip4:160.16.200.203 include:_spf.g`
SOA	1	`81dojo.com postmaster.81dojo.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns01.muumuu-domain.com, dns02.muumuu-domain.com)

Analysis

Hierarchy

81dojo.com is a parent of system.81dojo.com.

Name Server Role

81dojo.com serves as a name server for 81dojo.com.

dns01.muumuu-domain.com and dns02.muumuu-domain.com are commonly used as name servers along with 81dojo.com.

IP Addresses

81dojo.com points to a single IP number: 160.16.200.203.

Other host names, for instance system.81dojo.com, share IP numbers with 81dojo.com.

Name Servers

81dojo.com is delegated to three name servers: 81dojo.com, dns01.muumuu-domain.com and dns02.muumuu-domain.com.

81dojo.com at least partially shares name servers with other domains, for instance nuedge.jp, takasago-mejya.net, hikaribito.net, freesh.info and fumi.biz.