`osoujidustman.com`

DNSSEC	⚠️ Not signed
A	202.226.39.53^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		PTR	`sv352.xserver.jp`
NS	`ns.osoujidustman.com` ⭐ ⚠️ Not in parent delegation
		A	153.120.85.70^{🇯🇵 SAKURA-A153.120.0.0/17 (2/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
			PTR	`protection-zone.com`
NS	`ns1.protection-zone.com` ⚠️ Not in zone NS records
		A	153.120.85.70^{🇯🇵 SAKURA-A153.120.0.0/17 (2/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
			PTR	`protection-zone.com`
NS	`ns2.protection-zone.com` ⚠️ Not in zone NS records
		A	153.120.85.70^{🇯🇵 SAKURA-A153.120.0.0/17 (2/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
			PTR	`protection-zone.com`
MX	`mail.osoujidustman.com` ⭐
		A	153.120.85.70^{🇯🇵 SAKURA-A153.120.0.0/17 (2/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
			PTR	`protection-zone.com`
TXT	`v=spf1 +a +mx ~all`
SOA	`ns.osoujidustman.com`webmaster@act-system.com 2023-04-06 #1

`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=1771291435

Subdomains

mail.osoujidustman.com

ns.osoujidustman.com

Same first word

osoujidustman.com

DNS History

6 records (5 active, 1 former)

●NSns.osoujidustman.com2015-05-21 → 2026-03-23 · 2 obs

● 2015-05-21 11:59:26
● 2026-03-23 08:15:20

●NSns1.protection-zone.com2026-03-23 → 2026-03-23 · 3 obs

○ 2015-05-21 11:59:26
● 2026-03-23 03:36:48
● 2026-03-23 08:15:20

●NSns2.protection-zone.com2026-03-23 → 2026-03-23 · 3 obs

○ 2015-05-21 11:59:26
● 2026-03-23 03:36:48
● 2026-03-23 08:15:20

●MXmail.osoujidustman.com2015-05-21 → 2026-03-23 · 2 obs

● 2015-05-21 11:59:26
● 2026-03-23 08:15:20

●A202.226.39.532026-03-23 → 2026-03-23 · 3 obs

○ 2016-08-11 08:38:20
● 2026-03-23 03:36:48
● 2026-03-23 08:15:20

○A211.125.78.772015-05-21 → 2016-08-11 · 4 obs

● 2015-05-21 11:59:26
● 2016-08-11 08:38:20
○ 2026-03-23 03:36:48
○ 2026-03-23 08:15:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
osoujidustman.com	ns1.protection-zone.com, ns2.protection-zone.com	2 records

✅ Authoritative Response

Server:153.120.85.70

NS records: ns1.protection-zone.com, ns2.protection-zone.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for osoujidustman.com (unsigned zone)

⏱️ Timing

Total: 439ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.226.39.53`
NS	1	`ns.osoujidustman.com`
MX	1	`mail.osoujidustman.com (pri: 10)`
TXT	1	`v=spf1 +a +mx ~all`
SOA	1	`ns.osoujidustman.com webmaster.act-syste`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.protection-zone.com, ns2.protection-zone.com)

Analysis

Hierarchy

osoujidustman.com is the parent of mail.osoujidustman.com and ns.osoujidustman.com.

IP Addresses

osoujidustman.com resolves to a single IP: 202.226.39.53.

Other host names, for instance matsuyama-school.com, ogatadc.com, mail.aideal.net, moteism.com and adandweb.com share IP numbers with osoujidustman.com.

Name Servers

osoujidustman.com delegates to three name servers: ns.osoujidustman.com, ns1.protection-zone.com and ns2.protection-zone.com.

osoujidustman.com shares some name servers with other domains, for example happy-box24.com, act-system.com, carpool2003.com, socialalive.jp and npo-sumika.jp.

these name servers are often used with ns.happy-box24.com, ns1.act-system.com, ns2.act-system.com, ns.carpool2003.com, ns1.socialalive.jp, ns2.socialalive.jp, ns1.npo-sumika.jp, ns2.npo-sumika.jp, ns.suikou-saibai.net and ns1.eco-shopping.net.

Host names with a single IP:

ns.osoujidustman.com points to 153.120.85.70

ns1.protection-zone.com points to 153.120.85.70

ns2.protection-zone.com points to 153.120.85.70

Hostnames using IP 153.120.85.70: ns.osoujidustman.com, ns1.protection-zone.com and ns2.protection-zone.com

Mail Servers

osoujidustman.com is handled by a single mail server, mail.osoujidustman.com.

Host name mail.osoujidustman.com points to IP 153.120.85.70.

osoujidustman.com - robtex.com