`ojsystem.co.jp`

DNSSEC	⚠️ Not signed
A	183.90.231.5^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		PTR	`sv204.xbiz.ne.jp`
NS	`rental08.ojsystem.co.jp` ⭐ ⚠️ Not in parent delegation
		A	210.141.234.33^{🇯🇵 KDDI210.141.224.0/19 -P}
			PTR	`rental08.ultraworks.net`
NS	`dns1.ultraworks.net` ⚠️ Not in zone NS records
		A	210.141.234.33^{🇯🇵 KDDI210.141.224.0/19 -P}
			PTR	`rental08.ultraworks.net`
NS	`dns2.ultraworks.net` ⚠️ Not in zone NS records
		A	210.141.234.33^{🇯🇵 KDDI210.141.224.0/19 -P}
			PTR	`rental08.ultraworks.net`
MX	`mail.ojsystem.co.jp` ⭐
		A	210.141.234.33^{🇯🇵 KDDI210.141.224.0/19 -P}
			PTR	`rental08.ultraworks.net`
TXT	`MS=3D213B7C87A7E2D3A37F1C40384E4AF0E43313BF`
TXT	`MS=ms19239364`
TXT	`v=spf1 ip4:210.141.234.0/24 include:spf.protection.outlook.com -all`
SOA	`rental08.ojsystem.co.jp`root@ojsystem.co.jp 2024-02-01 #0

`co.jp`

	DNSSEC	⚠️ Not signed
	TXT	`co.jp.`

WOT: SAFE (58/100)

Same first word

ojsystem.com

ojsystem.co.jp

Similar names

josystem.de

mystjoes.me

systemjo.net

mystjoes.ca

systemjo.com

DNS History

6 records (5 active, 1 former)

●NSdns1.ultraworks.net2026-04-27 → 2026-05-12 · 3 obs

○ 2015-06-30 09:24:04
● 2026-04-27 07:41:14
● 2026-05-12 12:03:56

●NSdns2.ultraworks.net2026-04-27 → 2026-05-12 · 3 obs

○ 2015-06-30 09:24:04
● 2026-04-27 07:41:14
● 2026-05-12 12:03:56

●NSrental08.ojsystem.co.jp2015-06-30 → 2026-05-12 · 2 obs

● 2015-06-30 09:24:04
● 2026-05-12 12:03:56

●MXmail.ojsystem.co.jp2015-06-30 → 2026-05-12 · 2 obs

● 2015-06-30 09:24:04
● 2026-05-12 12:03:56

●A183.90.231.52026-04-27 → 2026-05-12 · 3 obs

○ 2018-06-03 03:48:24
● 2026-04-27 07:41:14
● 2026-05-12 12:03:56

○A210.141.234.332015-06-30 → 2018-06-03 · 4 obs

● 2015-06-30 09:24:04
● 2018-06-03 03:48:24
○ 2026-04-27 07:41:14
○ 2026-05-12 12:03:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
ojsystem.co.jp	dns1.ultraworks.net, dns2.ultraworks.net	-

✅ Authoritative Response

Server:210.141.234.33

NS records: dns1.ultraworks.net, dns2.ultraworks.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ojsystem.co.jp (unsigned zone)

⏱️ Timing

Total: 1328ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.90.231.5`
NS	1	`rental08.ojsystem.co.jp`
MX	1	`mail.ojsystem.co.jp (pri: 10)`
TXT	3	`MS=ms19239364, v=spf1 ip4:210.141.234.0/24 include:spf....`
SOA	1	`rental08.ojsystem.co.jp root.ojsystem.co`

Analysis

IP Addresses

ojsystem.co.jp points to a single IP: 183.90.231.5.

Other host names, for instance olive-dream.com, ishino-paint.com, www.shinwatec.co.jp, shinyo21.co.jp and www.taiya-kaitori.com share IP numbers with ojsystem.co.jp.

Name Servers

ojsystem.co.jp is delegated to three name servers: dns1.ultraworks.net, dns2.ultraworks.net and rental08.ojsystem.co.jp.

ojsystem.co.jp at least partially shares its name servers with other domains, for instance hikumano.com, maruzen-chuki.co.jp, sanyurin.jp, unagi-kawana.com and ultraworks.net.

These name servers are commonly used together with rental08.hikumano.com, rental08.maruzen-chuki.co.jp, rental08.sanyurin.jp, rental08.unagi-kawana.com, rental08.ultraworks.net, rental08.ito-san.jp, rental08.everblue-keibi.com and rental08.typeout.com.

Host names with one IP

dns1.ultraworks.net points to: 210.141.234.33.

dns2.ultraworks.net points to: 210.141.234.33.

rental08.ojsystem.co.jp points to: 210.141.234.33.

Host names pointing to 210.141.234.33: dns1.ultraworks.net, dns2.ultraworks.net and rental08.ojsystem.co.jp.

Mail Servers

ojsystem.co.jp is served by a single mail server, mail.ojsystem.co.jp.

mail.ojsystem.co.jp points to IP number 210.141.234.33.

ojsystem.co.jp - robtex.com

ojsystem.co.jp

co.jp