usr.jp - dns.ninja

`usr.jp`

DNSSEC	⚠️ Not signed
A	133.242.205.43^{🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
		PTR	`www12269uj.sakura.ne.jp`
NS	`dns.usr.jp` ⭐
NS	`dns.workship.jp` ⚠️ Not in zone NS records
		A	160.16.147.173^{🇯🇵 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	`tk2-409-45919.vs.sakura.ne.jp`
NS	`dns2.workship.jp` ⚠️ Not in zone NS records
		A	160.16.147.173^{🇯🇵 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	`tk2-409-45919.vs.sakura.ne.jp`
NS	`sv1.usr.jp` ⚠️ Not in parent delegation
		A	210.188.220.78^{🇯🇵 SAKURA-C210.188.192.0/19 SAKURA-B (2/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
NS	`usr.jp` ⚠️ Not in parent delegation
		A	133.242.205.43^{🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
			PTR	`www12269uj.sakura.ne.jp`
MX	`sv5.usr.jp` ⭐
		A	133.242.205.43^{🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
			PTR	`www12269uj.sakura.ne.jp`
MX	`sv6.usr.jp` ⭐
		A	49.212.155.249^{🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`www11475uf.sakura.ne.jp`
TXT	`v=spf1 +a:mail.usr.jp +a:mail.mgate.org +ip4:49.212.155.249 +ip4:133.242.205....`
SOA	`dns.usr.jp`root@dns.usr.jp 2024-06-24 #1

`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=1784717102

NS for

usr.jp

Subdomains

sv6.usr.jp

www.usr.jp

sv5.usr.jp

dns.usr.jp

sv1.usr.jp

Same first word

usr.com

usr.so

usr.com.au

usr.net

usr.me

usr.dk

usr.co

usr.de

usr.hr

usr.gg

usr.co.jp

usr.gr

usr.sk

usr.ac

usr.ir

usr.org

usr.us

usr.name

usr.ge

usr.pt

usr.com.ua

usr.fi

usr.co.kr

usr.lt

usr.cc

usr.kz

usr.co.za

usr.in.ua

usr.org.ar

usr.jp

usr.ru

usr.sicilia.it

usr.by

usr.io

usr.ch

usr.es

usr.edu.ye

usr.ca

usr.cloud

usr.co.il

usr.ws

usr.net.au

usr.cn

usr.cz

usr.ro

usr.be

usr.in

usr.it

usr.nl

usr.toscana.it

usr.at

usr.pl

Similar names

sur.top

urs.lt

rus.miami

urs.com.au

sur.fund

sur.gr.jp

rus.life

rus.nu

sur.com.mx

rus.fm

sur.us

sru.ru

rus.by

rus.pet

sur.place

rsu.co.kr

urs.ua

rus.md

sru.pl

sur.co.nz

rsu.tv

urs.co.kr

rus.hu

sur.co

rus.me

rus.taxi

sur.fr

sur.com

rus.ltd

rus.de

rsu.gouv.ml

sur.co.uk

rsu.ru

sur.fm

rus.fi

rsu.ma

rus.lt

rus.support

rus.be

urs.mx

rus.ninja

sru.ac.th

rus.fishing

rus.wtf

sru.edu.in

rus.im

sur.com.pl

sru.by

rus.asia

rus.ee

rsu.de

sur.city

rus.ac

sur.restaurant

urs.pl

rsu.su

urs.co.za

rus.co.jp

rus.com.az

urs.vn

rus.kim

sur.or.kr

rus.coop

rus.hr

rsu.edu.ng

rsu.ac.th

sur.cl

rus.eco

urs.me

sru.at

urs.rs

sru.be

rus.digital

rus.beer

rus.co

rus.world

sur.me

rsu.it

sur.pl

rus.in.ua

rus.is

DNS History

8 records (8 active, 0 former)

●NSdns.usr.jp2015-08-10 → 2026-07-22 · 2 obs

● 2015-08-10 19:58:02
● 2026-07-22 11:03:40

●NSdns.workship.jp2026-03-01 → 2026-07-22 · 3 obs

○ 2015-08-10 19:58:02
● 2026-03-01 13:21:34
● 2026-07-22 11:03:40

●NSdns2.workship.jp2026-03-01 → 2026-07-22 · 3 obs

○ 2015-08-10 19:58:02
● 2026-03-01 13:21:34
● 2026-07-22 11:03:40

●NSsv1.usr.jp2015-08-10 → 2026-07-22 · 2 obs

● 2015-08-10 19:58:02
● 2026-07-22 11:03:40

●NSusr.jp2015-08-10 → 2026-07-22 · 2 obs

● 2015-08-10 19:58:02
● 2026-07-22 11:03:40

●MXsv5.usr.jp2015-08-10 → 2026-07-22 · 2 obs

● 2015-08-10 19:58:02
● 2026-07-22 11:03:40

●MXsv6.usr.jp2026-03-01 → 2026-07-22 · 3 obs

○ 2015-08-10 19:58:02
● 2026-03-01 13:21:34
● 2026-07-22 11:03:40

●A133.242.205.432015-08-10 → 2026-07-22 · 2 obs

● 2015-08-10 19:58:02
● 2026-07-22 11:03:40

🔍 DNS Trace

Analysis

Hierarchy

sv6.usr.jp, www.usr.jp, sv5.usr.jp, dns.usr.jp and sv1.usr.jp are all subdomains of usr.jp.

Name Server Role

usr.jp is listed as a name server for usr.jp — it is in-bailiwick, authoritative for its own domain.

It is common to see dns.usr.jp, sv1.usr.jp and dns2.workship.jp acting as name servers in combination with usr.jp.

IP Addresses

usr.jp has exactly one IP address — 133.242.205.43.

www12269uj.sakura.ne.jp, sv2.e-it.jp, e-it.jp plus two other host names have IP numbers in common with usr.jp.

Name Servers

The delegation of usr.jp is to five name servers, including usr.jp, dns.usr.jp, sv1.usr.jp and two others.

The name servers of usr.jp overlap at least partially with those of other domains — among them eorders.info, surena.jp, little-oasis.net and two more.

These name servers commonly appear in delegations together with dns.workship.jp, dns.eorders.info, sv.surena.jp and 3 other.

Each of usr.jp, sv1.usr.jp, dns2.workship.jp and dns.workship.jp has one IP address — usr.jp points to 133.242.205.43, sv1.usr.jp points to 210.188.220.78 and dns2.workship.jp and dns.workship.jp both point to 160.16.147.173.

dns2.workship.jp along with dns.workship.jp each resolve to 160.16.147.173 IP addresses.

Mail Servers

usr.jp uses two mail servers, sv5.usr.jp and sv6.usr.jp.

Both sv5.usr.jp and sv6.usr.jp have a single IP address each — sv5.usr.jp resolves to 133.242.205.43 while sv6.usr.jp resolves to 49.212.155.249.