refocus.jp - dns.ninja

refocus.jp

DNSSEC⚠️ Not signed
A183.90.253.17🇯🇵 XSERVER-AS183.90.240.0/20 XSERVER Inc.
PTRsv1416.xserver.jp
NS01.dnsv.jp ⭐
A2400:8500:3300::53🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc.
A157.7.32.53🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team.
PTR01.dnsv.jp
NS02.dnsv.jp
A157.7.33.53🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team.
PTR02.dnsv.jp
NS03.dnsv.jp
A2400:8500:3000::53🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc.
PTR03.dnsv.jp
A157.7.34.53🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team.
PTR03.dnsv.jp
NS04.dnsv.jp
A2400:8500:3fff::53🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc.
PTR04.dnsv.jp
A157.7.35.53🇯🇵 GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team.
PTR04.dnsv.jp
SOA01.dnsv.jphostmaster@dnsv.jp serial=1554254366

jp

DNSSEC🔒 Signed (DS record present)
NSz.dns.jp ⭐
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
SOAz.dns.jproot@dns.jp serial=1781576103

Subdomains

www.refocus.jp

Same first word

refocus.in
refocus.co.jp
refocus.org.au
refocus.eu
refocus.co.nz
refocus.co
refocus.live
refocus.dk
refocus.jp
refocus.ee
refocus.us
refocus.it
refocus.ru
refocus.net
refocus.com.au
refocus.life
refocus.ch
refocus.nl
refocus.me
refocus.media
refocus.de
refocus.community

Similar names

fsource.io
ecosurf.org
fources.fr
foursec.nl
focuser.com
fources.nl
fsource.com
fruseco.es
sofruce.com
ecosurf.com
focusre.com
fsource.de
fsource.org
ecosurf.net
cofesur.com
ecosurf.eu
fecosur.com
forusec.com
fecosur.com.ar
fcourse.com
ecosurf.se
ocesurf.com
fruseco.com
ecosurf.org.au
ecosurf.xyz
ecosurf.com.br
surfeco.com
focusre.pro
sofruce.fr
coesurf.com
fsource.com.br
usforce.com
forceus.com
secufor.de
ecosurf.org.br
escorfu.gr
cofesur.es
forecus.co.th
coursef.com
cofruse.com
ecosurf.nl
focusre.net
focusre.de
fecosur.es
userfoc.us
foursec.com
secufor.com
esurfco.com
suforce.com
fuscore.com
cuesfor.com
sourcef.us

DNS History

10 records (5 active, 5 former)

20162017201820192020202120222023202420252026NS01.dnsv.jp02.dnsv.jp03.dnsv.jp04.dnsv.jpmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpMXmail.refocus.jpA183.90.253.17219.94.180.51
●NS01.dnsv.jp2026-03-06 → 2026-06-16 · 3 obs
○ 2016-11-28 13:16:52
● 2026-03-06 08:28:12
● 2026-06-16 02:47:16
●NS02.dnsv.jp2026-03-06 → 2026-06-16 · 3 obs
○ 2016-11-28 13:16:52
● 2026-03-06 08:28:12
● 2026-06-16 02:47:16
●NS03.dnsv.jp2026-03-06 → 2026-06-16 · 3 obs
○ 2016-11-28 13:16:52
● 2026-03-06 08:28:12
● 2026-06-16 02:47:16
●NS04.dnsv.jp2026-03-06 → 2026-06-16 · 3 obs
○ 2016-11-28 13:16:52
● 2026-03-06 08:28:12
● 2026-06-16 02:47:16
○NSmaster.dns.ne.jp2015-08-10 → 2016-11-28 · 4 obs
● 2015-08-10 17:29:24
● 2016-11-28 13:16:52
○ 2026-03-06 08:28:12
○ 2026-06-16 02:47:16
○NSns1.dns.ne.jp2015-08-10 → 2016-11-28 · 4 obs
● 2015-08-10 17:29:24
● 2016-11-28 13:16:52
○ 2026-03-06 08:28:12
○ 2026-06-16 02:47:16
○NSns2.dns.ne.jp2015-08-10 → 2016-11-28 · 4 obs
● 2015-08-10 17:29:24
● 2016-11-28 13:16:52
○ 2026-03-06 08:28:12
○ 2026-06-16 02:47:16
○MXmail.refocus.jp2015-08-10 → 2016-11-28 · 4 obs
● 2015-08-10 17:29:24
● 2016-11-28 13:16:52
○ 2026-03-06 08:28:12
○ 2026-06-16 02:47:16
●A183.90.253.172026-03-06 → 2026-06-16 · 3 obs
○ 2016-11-28 13:16:52
● 2026-03-06 08:28:12
● 2026-06-16 02:47:16
○A219.94.180.512015-08-10 → 2016-11-28 · 4 obs
● 2015-08-10 17:29:24
● 2016-11-28 13:16:52
○ 2026-03-06 08:28:12
○ 2026-06-16 02:47:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpb.dns.jp, a.dns.jp, f.dns.jp, h.dns.jp...-
refocus.jp02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp, 01.dnsv.jp7 records

✅ Authoritative Response

Server:157.7.32.53

NS records: 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp, 01.dnsv.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for refocus.jp (unsigned zone)

⏱️ Timing

Total: 2679ms | Queries: -

📄 Records

TypeCountSample Data
A1183.90.253.17
NS401.dnsv.jp, 02.dnsv.jp...
SOA101.dnsv.jp hostmaster.dnsv.jp

📌 Glue Records Collected

Total: 7

Out-of-bailiwick: 7 (01.dnsv.jp, 01.dnsv.jp, 02.dnsv.jp...)

Analysis

Hierarchy

refocus.jp serves as the parent of www.refocus.jp.

IP Addresses

refocus.jp points to a single IP number: 183.90.253.17.

Additional host names — mail.shinsankenkai.or.jp, daia.tokyo, photostudiokawamoto.com and two others — share IP numbers with refocus.jp.

Name Servers

refocus.jp has four authoritative name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.

refocus.jp has at least partial name server overlap with other domains, such as informationbridge.net, bitangel.biz, banpuku.jp and two others.

Host names with two IP numbers:

01.dnsv.jp resolves to 157.7.32.53 and 2400:8500:3300::53.

03.dnsv.jp resolves to 157.7.34.53 and 2400:8500:3000::53.

04.dnsv.jp resolves to 157.7.35.53 and 2400:8500:3fff::53.

Host names pointing to a single IP address:

02.dnsv.jp resolves to 157.7.33.53.