rtc.jp - dns.ninja

`rtc.jp`

DNSSEC	⚠️ Not signed
A	219.118.71.34^{🇯🇵 InfoSphere219.118.64.0/20 Kai Creates}
		PTR	`www4.hosting-link.ne.jp`
NS	`usr-ns1.linkclub.jp` ⭐
		A	219.118.70.40^{🇯🇵 InfoSphere219.118.64.0/20 Kai Creates}
			PTR	`usr-ns1.linkclub.jp`
NS	`usr-ns2.linkclub.jp`
		A	219.118.70.50^{🇯🇵 InfoSphere219.118.64.0/20 Kai Creates}
			PTR	`usr-ns2.linkclub.jp`
MX	`mx.linkclub.jp` ⭐
		A	219.118.68.160^{🇯🇵 InfoSphere219.118.64.0/20 Kai Creates}
			PTR	`mx.linkclub.jp`
TXT	`v=spf1 ip4:219.118.71.0/24 ip4:219.118.68.0/24 ~all`
SOA	`usr-ns1.linkclub.jp`nsadmin@linkclub.jp serial=1400686690

`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=1784585703

Same first word

rtc.no

rtc.net.br

rtc.services

rtc.com.sg

rtc.ro

rtc.jp

rtc.taxi

rtc.nyc

rtc.consulting

rtc.hu

rtc.co.nz

rtc.at

rtc.it

rtc.cl

rtc.com.br

rtc.se

rtc.solutions

rtc.net

rtc.ly

rtc.rs

rtc.fr

rtc.gob.mx

rtc.lt

rtc.com.pk

rtc.com.tw

rtc.bg

rtc.com.au

rtc.co.th

rtc.com.ua

rtc.co.uk

rtc.or.kr

rtc.synology.me

rtc.uk.net

rtc.com.tr

rtc.travel

rtc.la

rtc.org.au

rtc.by

rtc.es

rtc.com

rtc.co

rtc.mx

rtc.eu

rtc.net.au

rtc.cloud

rtc.tv

rtc.expert

rtc.guru

rtc.ie

rtc.com.pl

rtc.education

rtc.london

rtc.cv

rtc.no-ip.org

rtc.li

rtc.pt

rtc.edu

rtc.pl

rtc.coop

rtc.co.za

rtc.hr

rtc.cc

rtc.bt

rtc.email

rtc.sg

rtc.cz

rtc.world

rtc.spb.ru

rtc.fi

rtc.berlin

rtc.lu

rtc.okinawa

rtc.edu.ge

rtc.directory

rtc.ru

rtc.sc

rtc.nl

rtc.exchange

rtc.lv

rtc.org.uk

rtc.si

rtc.systems

rtc.su

rtc.edu.vn

rtc.org

rtc.be

rtc.kz

rtc.ac.th

Similar names

ctr.se

crt.bz

rct.co.il

ctr.sh

rct.co.in

rct.it

rct.eu

tcr.us

ctr.su

trc.net

rct.com.ar

rct.co.uk

tcr.com.sg

tcr.homeunix.com

ctr.kz

rct.lv

trc.mo.it

crt.cat

rct.pl

tcr.cn

rct.in

trc.la

ctr.associates

ctr.pl

rct.fr

trc.gov.jo

ctr.eu

trc.su

crt.com.br

trc.hu

ctr.bz

crt.asso.fr

trc.com

trc.om

crt.es

rct.org

rct.ru

crt.fund

rct.no

ctr.ms

ctr.ie

crt.pl

ctr.com

trc.eu

trc.com.sg

tcr.sakura.ne.jp

ctr.co.kr

ctr.net

crt.com.tr

trc.com.ua

rct.bg

trc.si

crt.se

rct.ai

tcr.management

tcr.azurewebsites.net

tcr.pt

trc.biz

trc.pl

crt.ru

trc.com.tr

trc.org.nz

rct.jp

rct.ie

trc.bz

trc.ru

crt.la

crt.com.tw

trc.or.th

crt.net.au

ctr.fr

rct.se

tcr.ru

ctr.co

crt.ca

ctr.mobi

tcr.cafe

trc.vg

rct.co.th

trc.co.tz

DNS History

4 records (4 active, 0 former)

●NSusr-ns1.linkclub.jp2015-06-22 → 2026-07-20 · 2 obs

● 2015-06-22 13:11:48
● 2026-07-20 22:20:50

●NSusr-ns2.linkclub.jp2015-06-22 → 2026-07-20 · 2 obs

● 2015-06-22 13:11:48
● 2026-07-20 22:20:50

●MXmx.linkclub.jp2015-06-22 → 2026-07-20 · 2 obs

● 2015-06-22 13:11:48
● 2026-07-20 22:20:50

●A219.118.71.342015-06-22 → 2026-07-20 · 2 obs

● 2015-06-22 13:11:48
● 2026-07-20 22:20:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...	-
rtc.jp	usr-ns1.linkclub.jp, usr-ns2.linkclub.jp	-

✅ Authoritative Response

Server:219.118.70.40

NS records: usr-ns1.linkclub.jp, usr-ns2.linkclub.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rtc.jp (unsigned zone)

⏱️ Timing

Total: 1491ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`219.118.71.34`
NS	2	`usr-ns1.linkclub.jp, usr-ns2.linkclub.jp`
MX	1	`mx.linkclub.jp (pri: 10)`
TXT	1	`v=spf1 ip4:219.118.71.0/24 ip4:219.118.6`
SOA	1	`usr-ns1.linkclub.jp nsadmin.linkclub.jp`

Analysis

IP Addresses

rtc.jp has exactly one IP address — 219.118.71.34.

sakana.tv, lsd-e.com, manacom.tv plus two other host names have IP numbers in common with rtc.jp.

Name Servers

rtc.jp has two authoritative name servers — usr-ns1.linkclub.jp and usr-ns2.linkclub.jp.

The name server configuration of rtc.jp is shared with other domains, for instance tatami-iwashi.com, spike-design.co.jp, farc.jp and two others.

There is at least partial name server overlap between rtc.jp and other domains — mbk.co.jp, bm-ukon.com, kuramochi.com and two more among them.

These name servers are routinely deployed together with the name servers pba.linkclub.jp.

usr-ns1.linkclub.jp → 219.118.70.40 and usr-ns2.linkclub.jp → 219.118.70.50: one IP number per host name.

Mail Servers

rtc.jp uses one mail server — mx.linkclub.jp.

The mail server setup of rtc.jp matches that of other domains such as gous.co.jp, sgm10.net, pinery.biz and two others.

mx.linkclub.jp points to one IP number — 219.118.68.160.