`appcogroup.jp`

DNSSEC	⚠️ Not signed
A	121.50.47.157^{🇯🇵 TSUKAERUNET121.50.40.0/21 JMF Investment & Technology PTY LTD 1082 Minamiagata-machi}
		PTR	`appcogroup.jp`
NS	`ns1w.tsukaeru.net` ⭐
		A	203.83.245.65^{🇯🇵 TSUKAERUNET203.83.240.0/21 JMF Investment & Technology PTY LTD 1082 Minamiagata-machi}
NS	`ns2w.tsukaeru.net`
		A	121.50.41.140^{🇯🇵 TSUKAERUNET121.50.40.0/21 JMF Investment & Technology PTY LTD 1082 Minamiagata-machi}
MX	`mx1.mailbuster.jp` ⭐
		A	27.112.109.251^{🇯🇵 TSUKAERUNET27.112.104.0/21 JMF Investment & Technology PTY LTD 1082 Minamiagata-machi}
			PTR	`delivery1.nospamcloud.com`
MX	`mx2.mailbuster.jp`⁽²⁰⁾
		A	27.112.109.252^{🇯🇵 TSUKAERUNET27.112.104.0/21 JMF Investment & Technology PTY LTD 1082 Minamiagata-machi}
			PTR	`delivery2.nospamcloud.com`
MX	`mx3.mailbuster.jp`⁽³⁰⁾
		A	27.112.111.177^{🇯🇵 TSUKAERUNET27.112.104.0/21 JMF Investment & Technology PTY LTD 1082 Minamiagata-machi}
			PTR	`delivery3.nospamcloud.com`
MX	`mx4.mailbuster.jp`⁽⁴⁰⁾
		A	116.213.5.156^{🇦🇺 OZHOSTING-AS-AP116.213.5.0/24}
			PTR	`delivery4.nospamcloud.com`
TXT	`v=spf1 +a +mx include:_spf.activegate-ss.jp -all`
SOA	`ns1w.tsukaeru.net`admin@tsukaeru.net 2025-11-27 #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=1776172502

PTR for

157.47.50.121.in-addr.arpa

Subdomains

mail.appcogroup.jp

Same first word

appcogroup.ca

appcogroup.id

appcogroup.es

appcogroup.jp

appcogroup.ph

appcogroup.com

appcogroup.in

appcogroup.pl

appcogroup.co.uk

appcogroup.asia

appcogroup.net

Similar names

coppagroup.com

capogruppo.de

DNS History

14 records (7 active, 7 former)

○NSns1.tsukaeru.ne.jp2020-02-25 → 2020-02-25 · 4 obs

○ 2017-03-13 12:45:26
● 2020-02-25 21:31:18
○ 2026-02-15 13:46:44
○ 2026-04-14 13:28:38

●NSns1w.tsukaeru.net2026-02-15 → 2026-04-14 · 3 obs

○ 2020-02-25 21:31:18
● 2026-02-15 13:46:44
● 2026-04-14 13:28:38

○NSns2.tsukaeru.ne.jp2020-02-25 → 2020-02-25 · 4 obs

○ 2017-03-13 12:45:26
● 2020-02-25 21:31:18
○ 2026-02-15 13:46:44
○ 2026-04-14 13:28:38

●NSns2w.tsukaeru.net2026-02-15 → 2026-04-14 · 3 obs

○ 2020-02-25 21:31:18
● 2026-02-15 13:46:44
● 2026-04-14 13:28:38

○NSpns1.appco-group.com2015-06-24 → 2017-03-13 · 4 obs

● 2015-06-24 18:56:04
● 2017-03-13 12:45:26
○ 2020-02-25 21:31:18
○ 2026-04-14 13:28:38

○NSpns2.appco-group.com2015-06-24 → 2017-03-13 · 4 obs

● 2015-06-24 18:56:04
● 2017-03-13 12:45:26
○ 2020-02-25 21:31:18
○ 2026-04-14 13:28:38

○MXmail.appcogroup.jp2015-06-24 → 2017-03-13 · 4 obs

● 2015-06-24 18:56:04
● 2017-03-13 12:45:26
○ 2020-02-25 21:31:18
○ 2026-04-14 13:28:38

●MXmx1.mailbuster.jp2020-02-25 → 2026-04-14 · 3 obs

○ 2017-03-13 12:45:26
● 2020-02-25 21:31:18
● 2026-04-14 13:28:38

●MXmx2.mailbuster.jp2020-02-25 → 2026-04-14 · 3 obs

○ 2017-03-13 12:45:26
● 2020-02-25 21:31:18
● 2026-04-14 13:28:38

●MXmx3.mailbuster.jp2020-02-25 → 2026-04-14 · 3 obs

○ 2017-03-13 12:45:26
● 2020-02-25 21:31:18
● 2026-04-14 13:28:38

●MXmx4.mailbuster.jp2020-02-25 → 2026-04-14 · 3 obs

○ 2017-03-13 12:45:26
● 2020-02-25 21:31:18
● 2026-04-14 13:28:38

○A119.82.28.2162020-02-25 → 2020-02-25 · 4 obs

○ 2017-03-13 12:45:26
● 2020-02-25 21:31:18
○ 2026-02-15 13:46:44
○ 2026-04-14 13:28:38

●A121.50.47.1572026-02-15 → 2026-04-14 · 3 obs

○ 2020-02-25 21:31:18
● 2026-02-15 13:46:44
● 2026-04-14 13:28:38

○A175.45.141.492015-06-24 → 2017-03-13 · 4 obs

● 2015-06-24 18:56:04
● 2017-03-13 12:45:26
○ 2020-02-25 21:31:18
○ 2026-04-14 13:28:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	c.dns.jp, b.dns.jp, a.dns.jp, f.dns.jp...	-
appcogroup.jp	ns1w.tsukaeru.net, ns2w.tsukaeru.net	-

✅ Authoritative Response

Server:203.83.245.65

NS records: ns1w.tsukaeru.net, ns2w.tsukaeru.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for appcogroup.jp (unsigned zone)

⏱️ Timing

Total: 1479ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.50.47.157`
NS	2	`ns1w.tsukaeru.net, ns2w.tsukaeru.net`
MX	4	`mx3.mailbuster.jp (pri: 30), mx4.mailbuster.jp (pri: 40)...`
TXT	1	`v=spf1 +a +mx include:_spf.activegate-ss`
SOA	1	`ns1w.tsukaeru.net admin.tsukaeru.net`

Analysis

Hierarchy

The parent of mail.appcogroup.jp is appcogroup.jp.

IP Addresses

appcogroup.jp points to IP number: 121.50.47.157.

Other host names, for instance mail.appcogroup.jp share IP numbers with appcogroup.jp.

Name Servers

appcogroup.jp is delegated to two name servers: ns1w.tsukaeru.net and ns2w.tsukaeru.net.

appcogroup.jp shares the same name server setup as hokuren-yuki-s.co.jp, sakurahost.net, sokuhai-web.jp, logical-golf.com and kitamachi-cl.jp.

appcogroup.jp partially shares its name servers with other domains, for example oqx1.jp, cyber-poetry.jp and epub-store.jp.

Host names with a single IP:

ns1w.tsukaeru.net points to 203.83.245.65.

ns2w.tsukaeru.net points to 121.50.41.140.

Mail Servers

Four mail servers handle appcogroup.jp: mx1.mailbuster.jp, mx2.mailbuster.jp, mx3.mailbuster.jp and mx4.mailbuster.jp.

appcogroup.jp shares at least partially some mail servers with other domains, including sjf.co.jp, gotoasato.com, heihachi.co.jp, sogo-unyu.co.jp and intercast.co.jp.

these mail servers are commonly used together with wxa104.wadax-sv.jp.

Host names with one IP number:

mx1.mailbuster.jp points to 27.112.109.251.

mx2.mailbuster.jp points to 27.112.109.252.

mx3.mailbuster.jp points to 27.112.111.177.

mx4.mailbuster.jp points to 116.213.5.156.

appcogroup.jp - robtex.com

appcogroup.jp

jp

PTR for

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`appcogroup.jp`

`jp`