centraltech.jp - dns.ninja

`centraltech.jp`

DNSSEC	⚠️ Not signed
A	219.94.155.217^{🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
		PTR	`www427b.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	`fuji.sixcore-server.jp` ⭐
		A	162.43.113.14^{🇯🇵 XSERVER-AS162.43.112.0/21 XSERVER Inc.}
			PTR	`dsv13.sixcore.ne.jp`
TXT	`v=spf1 +a:fuji.sixcore-server.jp +a:centraltech.jp +mx include:spf.sender.xse...`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2025-11-13 #16

`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=1785869103

Previously MX for

centraltech.jp

Same first word

Similar names

DNS History

7 records (5 active, 2 former)

●NSmaster.dns.ne.jp2015-08-25 → 2026-08-04 · 2 obs

● 2015-08-25 06:38:02
● 2026-08-04 19:50:58

●NSns1.dns.ne.jp2015-08-25 → 2026-08-04 · 2 obs

● 2015-08-25 06:38:02
● 2026-08-04 19:50:58

●NSns2.dns.ne.jp2015-08-25 → 2026-08-04 · 2 obs

● 2015-08-25 06:38:02
● 2026-08-04 19:50:58

○MXcentraltech.jp2015-08-25 → 2020-02-10 · 4 obs

● 2015-08-25 06:38:02
● 2020-02-10 03:17:06
○ 2026-03-10 23:47:46
○ 2026-08-04 19:50:58

●MXfuji.sixcore-server.jp2026-03-10 → 2026-08-04 · 3 obs

○ 2020-02-10 03:17:06
● 2026-03-10 23:47:46
● 2026-08-04 19:50:58

○A112.78.125.802015-08-25 → 2020-02-10 · 4 obs

● 2015-08-25 06:38:02
● 2020-02-10 03:17:06
○ 2026-03-10 23:47:46
○ 2026-08-04 19:50:58

●A219.94.155.2172026-03-10 → 2026-08-04 · 3 obs

○ 2020-02-10 03:17:06
● 2026-03-10 23:47:46
● 2026-08-04 19:50:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	d.dns.jp, a.dns.jp, h.dns.jp, e.dns.jp...	-
centraltech.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 centraltech.jp (unsigned zone)

⏱️ Timing

Total: 1547ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`219.94.155.217`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	1	`fuji.sixcore-server.jp (pri: 10)`
TXT	1	`v=spf1 +a:fuji.sixcore-server.jp +a:cent`
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

IP Addresses

centraltech.jp points to a single IP number: 219.94.155.217.

Additional host names — www.iitenpo.jp, farobotsier.com, www.abc-de.com and two others — share IP numbers with centraltech.jp.

Name Servers

DNS for centraltech.jp is handled by three authoritative name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

There is at least partial name server overlap between centraltech.jp and other domains — dngsyaken.net, seed-sc.com, mizutabounetsu.com and two more among them.

master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp all have one IP address each — master.dns.ne.jp directs to 210.224.172.18, ns1.dns.ne.jp directs to 61.211.236.1 and ns2.dns.ne.jp directs to 133.167.21.1.

Mail Servers

centraltech.jp has one mail server: fuji.sixcore-server.jp.

centraltech.jp shares the same mail server setup as other domains, including fujigroup.co.jp, endeavor.co.jp, orgc.jp and two others.

fuji.sixcore-server.jp has exactly one IP number: 162.43.113.14.