jca.jp - dns.ninja

`jca.jp`

DNSSEC	⚠️ Not signed
A	153.126.211.43^{🇯🇵 SAKURA-A153.126.128.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
		PTR	`ik1-341-30789.vs.sakura.ne.jp`
NS	`master.dns.ne.jp` ⭐
		A	210.224.172.18^{🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`master.dns.ne.jp`
NS	`ns1.dns.ne.jp`
		A	61.211.236.1^{🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`ns1.dns.ne.jp`
NS	`ns2.dns.ne.jp`
		A	133.167.21.1^{🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan}
			PTR	`ns2.dns.ne.jp`
MX	`jca.jp` ⭐
		A	153.126.211.43^{🇯🇵 SAKURA-A153.126.128.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
			PTR	`ik1-341-30789.vs.sakura.ne.jp`
TXT	`v=spf1 include:jca.or.jp a mx ~all`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2022-05-11 #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=1781474403

MX for

jca.jp

Same first word

jca.co.uk

jca.ec

jca.pt

jca.ru

jca.engineering

jca.no

jca.com.au

jca.org

jca.at

jca.com.mx

jca.cc

jca.ca

jca.cz

jca.tokyo

jca.design

jca.dk

jca.net.au

jca.adv.br

jca.com.br

jca.ne.jp

jca.org.au

jca.eu

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jca.cn

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jca.se

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jca.co

jca.vc

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jca.com.tw

jca.be

jca.services

jca.net.cn

jca.org.tw

jca.biz

jca.ie

jca.care

jca.es

jca.org.nz

jca.jp

jca.co.in

Similar names

jac.mx

ajc.edu.vn

ajc.com.co

ajc.ru

caj.al

jac.org

jac.ee

acj.de

cja.agency

ajc.ca

cja.pt

jac.cn

jac.co.uk

acj.nl

acj.si

jac.si

caj.co

jac.mobi

acj.com.uy

caj.se

acj.ca

jac.pl

jac.red

cja.cc

caj.sk

caj.edu.mx

caj.kz

jac.lt

caj.net

ajc.school

jac.computer

acj.com.au

cja.co.uk

cja.name

cja.ru

caj.dk

jac.com.jo

jac.vn

jac.ro

cja.com.br

acj.at

jac.net.ph

ajc.tn

jac.co

jac.clinic

caj.eu

cja.it

caj.com

jac.ph

ajc.name

ajc.nl

ajc.com.pl

acj.ru

caj.ru

jac.ltd

ajc.org.il

ajc.cl

acj.ai

jac.ru

ajc.info

jac.ac.cn

jac.se

ajc.cz

jac.info

acj.one

ajc.education

caj.co.id

acj.ch

acj.be

jac.com.cn

cja.in

cja.vc

caj.be

jac.co.th

caj.ca

jac.be

jac.company

ajc.pt

ajc.com.au

acj.pl

acj.adm.br

ajc.su

jac.sg

cja.gov.in

DNS History

8 records (5 active, 3 former)

●NSmaster.dns.ne.jp2026-02-19 → 2026-06-14 · 3 obs

○ 2016-01-28 08:57:38
● 2026-02-19 00:28:54
● 2026-06-14 22:12:04

●NSns1.dns.ne.jp2026-02-19 → 2026-06-14 · 3 obs

○ 2016-01-28 08:57:38
● 2026-02-19 00:28:54
● 2026-06-14 22:12:04

○NSns1.jca.or.jp2015-07-23 → 2016-01-28 · 4 obs

● 2015-07-23 03:35:52
● 2016-01-28 08:57:38
○ 2026-02-19 00:28:54
○ 2026-06-14 22:12:04

●NSns2.dns.ne.jp2026-02-19 → 2026-06-14 · 3 obs

○ 2016-01-28 08:57:38
● 2026-02-19 00:28:54
● 2026-06-14 22:12:04

○NSns2.jca.or.jp2015-07-23 → 2016-01-28 · 4 obs

● 2015-07-23 03:35:52
● 2016-01-28 08:57:38
○ 2026-02-19 00:28:54
○ 2026-06-14 22:12:04

●MXjca.jp2015-07-23 → 2026-06-14 · 2 obs

● 2015-07-23 03:35:52
● 2026-06-14 22:12:04

●A153.126.211.432026-02-19 → 2026-06-14 · 3 obs

○ 2016-01-28 08:57:38
● 2026-02-19 00:28:54
● 2026-06-14 22:12:04

○A210.188.206.242015-07-23 → 2016-01-28 · 4 obs

● 2015-07-23 03:35:52
● 2016-01-28 08:57:38
○ 2026-02-19 00:28:54
○ 2026-06-14 22:12:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
jca.jp	ns1.dns.ne.jp, ns2.dns.ne.jp	2 records

✅ Authoritative Response

Server:61.211.236.1

NS records: ns1.dns.ne.jp, ns2.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jca.jp (unsigned zone)

⏱️ Timing

Total: 998ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`153.126.211.43`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	1	`jca.jp (pri: 10)`
TXT	1	`v=spf1 include:jca.or.jp a mx ~all`
SOA	1	`master.dns.ne.jp tech.sakura.ad.jp`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.dns.ne.jp, ns2.dns.ne.jp)

Analysis

Mail Server Role

The MX record for jca.jp points back to jca.jp — it is its own mail server.

IP Addresses

jca.jp directs to one IP number, which is 153.126.211.43.

Other host names, such as ik1-341-30789.vs.sakura.ne.jp, share IP numbers with jca.jp.

Name Servers

jca.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

jca.jp has at least partial name server overlap with other domains, such as thaifestivalmyanmar.com, grand-trine.co.jp, iidev.co.jp and two others.

It is common to find these name servers paired with the name servers dns.sakura.ad.jp.

master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp each resolve to a single IP address: master.dns.ne.jp resolves to 210.224.172.18, ns1.dns.ne.jp resolves to 61.211.236.1 and ns2.dns.ne.jp resolves to 133.167.21.1.

Mail Servers

The MX record for jca.jp points to a single mail server: jca.jp.

jca.jp resolves to a single IP number: 153.126.211.43.