workwork.jp - dns.ninja

`workwork.jp`

DNSSEC	⚠️ Not signed
A	162.43.101.82^{🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc.}
		PTR	`sv14881.xserver.jp`
NS	`ns1.xserver.jp` ⭐
		A	202.226.36.164^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		A	202.226.36.170^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		A	202.226.36.246^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns1.xserver.jp`
NS	`ns2.xserver.jp`
		A	35.72.43.26^{🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix}
			PTR	`ns2.xserver.jp`
NS	`ns3.xserver.jp`
		A	202.226.36.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns3.xserver.jp`
NS	`ns4.xserver.jp`
		A	183.90.224.226^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		A	183.90.224.230^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		A	202.226.39.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns4.xserver.jp`
NS	`ns5.xserver.jp`
		A	157.112.182.218^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
		A	157.112.182.220^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
		A	202.226.37.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns5.xserver.jp`
MX	`workwork.jp` ⭐
		A	162.43.101.82^{🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc.}
			PTR	`sv14881.xserver.jp`
TXT	`v=spf1 +a:sv14881.xserver.jp +a:workwork.jp +mx include:spf.sender.xserver.jp...`
SOA	`ns1.xserver.jp`root@xserver.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=1784356202

MX for

workwork.jp

Same first word

workwork.co

workwork.co.jp

workwork.or.jp

workwork.de

workwork.online

workwork.ru

workwork.eu

workwork.dk

workwork.co.uk

workwork.cafe

workwork.sg

workwork.kr

workwork.at

workwork.com.cn

workwork.cn

workwork.org

workwork.se

workwork.jp

workwork.com

workwork.net

Similar names

wwoorrkk.com

workkrow.com

DNS History

15 records (7 active, 8 former)

○NSmaster.dns.ne.jp2017-04-10 → 2017-04-10 · 4 obs

○ 2016-09-23 05:21:04
● 2017-04-10 12:29:34
○ 2026-03-26 08:50:08
○ 2026-07-18 07:12:46

○NSns1.dns.ne.jp2017-04-10 → 2017-04-10 · 4 obs

○ 2016-09-23 05:21:04
● 2017-04-10 12:29:34
○ 2026-03-26 08:50:08
○ 2026-07-18 07:12:46

●NSns1.xserver.jp2026-03-26 → 2026-07-18 · 3 obs

○ 2017-04-10 12:29:34
● 2026-03-26 08:50:08
● 2026-07-18 07:12:46

○NSns2.dns.ne.jp2017-04-10 → 2017-04-10 · 4 obs

○ 2016-09-23 05:21:04
● 2017-04-10 12:29:34
○ 2026-03-26 08:50:08
○ 2026-07-18 07:12:46

●NSns2.xserver.jp2026-03-26 → 2026-07-18 · 3 obs

○ 2017-04-10 12:29:34
● 2026-03-26 08:50:08
● 2026-07-18 07:12:46

○NSns27.rookdns.com2015-06-29 → 2016-04-13 · 4 obs

● 2015-06-29 02:30:04
● 2016-04-13 14:42:00
○ 2016-09-23 05:21:04
○ 2026-07-18 07:12:46

○NSns28.rookdns.com2015-06-29 → 2016-04-13 · 4 obs

● 2015-06-29 02:30:04
● 2016-04-13 14:42:00
○ 2016-09-23 05:21:04
○ 2026-07-18 07:12:46

●NSns3.xserver.jp2026-03-26 → 2026-07-18 · 3 obs

○ 2017-04-10 12:29:34
● 2026-03-26 08:50:08
● 2026-07-18 07:12:46

●NSns4.xserver.jp2026-03-26 → 2026-07-18 · 3 obs

○ 2017-04-10 12:29:34
● 2026-03-26 08:50:08
● 2026-07-18 07:12:46

●NSns5.xserver.jp2026-03-26 → 2026-07-18 · 3 obs

○ 2017-04-10 12:29:34
● 2026-03-26 08:50:08
● 2026-07-18 07:12:46

○MXmail.mxproc.com2015-06-29 → 2016-04-13 · 4 obs

● 2015-06-29 02:30:04
● 2016-04-13 14:42:00
○ 2016-09-23 05:21:04
○ 2026-07-18 07:12:46

●MXworkwork.jp2017-04-10 → 2026-07-18 · 3 obs

○ 2016-09-23 05:21:04
● 2017-04-10 12:29:34
● 2026-07-18 07:12:46

○A141.8.224.1692015-06-29 → 2016-04-13 · 4 obs

● 2015-06-29 02:30:04
● 2016-04-13 14:42:00
○ 2016-09-23 05:21:04
○ 2026-07-18 07:12:46

●A162.43.101.822026-03-26 → 2026-07-18 · 3 obs

○ 2017-04-10 12:29:34
● 2026-03-26 08:50:08
● 2026-07-18 07:12:46

○A49.212.198.172017-04-10 → 2017-04-10 · 4 obs

○ 2016-09-23 05:21:04
● 2017-04-10 12:29:34
○ 2026-03-26 08:50:08
○ 2026-07-18 07:12:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	b.dns.jp, c.dns.jp, d.dns.jp, g.dns.jp...	15 records
workwork.jp	ns5.xserver.jp, ns3.xserver.jp, ns1.xserver.jp, ns2.xserver.jp...	11 records

✅ Authoritative Response

Server:35.72.43.26

NS records: ns5.xserver.jp, ns3.xserver.jp, ns1.xserver.jp, ns2.xserver.jp, ns4.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workwork.jp (unsigned zone)

⏱️ Timing

Total: 1040ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`162.43.101.82`
NS	5	`ns3.xserver.jp, ns2.xserver.jp...`
MX	1	`workwork.jp (pri: 0)`
TXT	1	`v=spf1 +a:sv14881.xserver.jp +a:workwork`
SOA	1	`ns1.xserver.jp root.xserver.jp`

📌 Glue Records Collected

Total: 26

In-bailiwick: 15 (a.dns.jp, b.dns.jp, c.dns.jp...)

Out-of-bailiwick: 11 (ns5.xserver.jp, ns5.xserver.jp, ns5.xserver.jp...)

Analysis

Mail Server Role

workwork.jp acts as its own mail server.

IP Addresses

workwork.jp points to a single IP number: 162.43.101.82.

Additional host names — mikuro3.com, seiryou.or.jp, hostmaster.kitamichi.com and two others — share IP numbers with workwork.jp.

Name Servers

Delegation for workwork.jp is to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

There is at least partial name server overlap between workwork.jp and other domains — tegoro.jp, space-9.net, saros-nagoya.jp and two more among them.

These name servers frequently co-occur with the name servers ns4.xserver.jp and ns5.xserver.jp.

Host names with three IP numbers:

ns1.xserver.jp maps to three IP addresses: 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp maps to three IP addresses: 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp maps to three IP addresses: 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Host names pointing to a single IP address:

ns2.xserver.jp resolves to the IP address 35.72.43.26.

ns3.xserver.jp resolves to the IP address 202.226.36.247.

Mail Servers

workwork.jp has a single mail server: workwork.jp itself.

workwork.jp resolves to 162.43.101.82 and no other IP number.