`kaiketsu-j.com`

DNSSEC	⚠️ Not signed
A	140.227.39.59^{🇯🇵 InfoSphere140.227.0.0/16 INFOSPHERE}
		PTR	`140-227-39-59.pro.static.arena.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	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c06::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bg-in-f27.1e100.net`
		A	172.253.62.26^{🇺🇸 Google172.253.62.0/24}
			PTR	`bc-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`v=spf1 include:_spf.google.com +ip4:140.227.39.59 +ip4:209.85.220.41 +include...`
TXT	`google-site-verification=p6NQ_WdZE1cLR3EECsFG69E4Ttb46IGvxYrsOVvUauw`
TXT	`include:244533532.spf08.hubspotemail.net`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2026-07-09 #1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1784458172

Previously MX for

www.kaiketsu-j.com

kaiketsu-j.com

Subdomains

www.kaiketsu-j.com

Same first word

kaiketsu-j.com

DNS History

11 records (9 active, 2 former)

●NSmaster.dns.ne.jp2015-05-31 → 2026-07-19 · 2 obs

● 2015-05-31 09:32:42
● 2026-07-19 11:16:58

●NSns1.dns.ne.jp2015-05-31 → 2026-07-19 · 2 obs

● 2015-05-31 09:32:42
● 2026-07-19 11:16:58

●NSns2.dns.ne.jp2015-05-31 → 2026-07-19 · 2 obs

● 2015-05-31 09:32:42
● 2026-07-19 11:16:58

●MXalt1.aspmx.l.google.com2026-04-14 → 2026-07-19 · 3 obs

○ 2017-07-01 06:57:28
● 2026-04-14 14:38:50
● 2026-07-19 11:16:58

●MXalt2.aspmx.l.google.com2026-04-14 → 2026-07-19 · 3 obs

○ 2017-07-01 06:57:28
● 2026-04-14 14:38:50
● 2026-07-19 11:16:58

●MXalt3.aspmx.l.google.com2026-04-14 → 2026-07-19 · 3 obs

○ 2017-07-01 06:57:28
● 2026-04-14 14:38:50
● 2026-07-19 11:16:58

●MXalt4.aspmx.l.google.com2026-04-14 → 2026-07-19 · 3 obs

○ 2017-07-01 06:57:28
● 2026-04-14 14:38:50
● 2026-07-19 11:16:58

●MXaspmx.l.google.com2026-04-14 → 2026-07-19 · 3 obs

○ 2017-07-01 06:57:28
● 2026-04-14 14:38:50
● 2026-07-19 11:16:58

○MXkaiketsu-j.com2015-05-31 → 2017-07-01 · 4 obs

● 2015-05-31 09:32:42
● 2017-07-01 06:57:28
○ 2026-04-14 14:38:50
○ 2026-07-19 11:16:58

●A140.227.39.592026-04-14 → 2026-07-19 · 3 obs

○ 2017-07-01 06:57:28
● 2026-04-14 14:38:50
● 2026-07-19 11:16:58

○A157.112.146.682015-05-31 → 2017-07-01 · 4 obs

● 2015-05-31 09:32:42
● 2017-07-01 06:57:28
○ 2026-04-14 14:38:50
○ 2026-07-19 11:16:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
kaiketsu-j.com	ns1.dns.ne.jp, ns2.dns.ne.jp	-

✅ 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 kaiketsu-j.com (unsigned zone)

⏱️ Timing

Total: 933ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`140.227.39.59`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	5	`aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)...`
TXT	3	`v=spf1 include:_spf.google.com +ip4:140., google-site-verification=p6NQ_WdZE1cLR3E...`
SOA	1	`master.dns.ne.jp tech.sakura.ad.jp`

Analysis

Hierarchy

kaiketsu-j.com is the parent zone for www.kaiketsu-j.com.

IP Addresses

kaiketsu-j.com has exactly one IP address — 140.227.39.59.

140-227-39-59.pro.static.arena.ne.jp, www.psrn.jp and psrn.jp are examples of other host names that share IP numbers with kaiketsu-j.com.

Name Servers

Three name servers are authoritative for kaiketsu-j.com: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

kaiketsu-j.com partially shares its NS delegation with several other domains, including dzel.sakura.ne.jp, directcc.jp, sandenkeiso.co.jp and two others.

These name servers often co-occur with the name servers dns.sakura.ad.jp.

Three hostnames, one IP address apiece: 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

kaiketsu-j.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by kaiketsu-j.com are shared with other domains: luxcalendar.com, n-kioski.fi, codingintel.com and two others among them.

These mail servers often appear in conjunction with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names pointing to two IP addresses:

aspmx.l.google.com maps to two IP addresses — 172.253.62.26 and 2607:f8b0:4004:c06::1b.

alt1.aspmx.l.google.com maps to two IP addresses — 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com maps to two IP addresses — 192.178.223.26 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com maps to two IP addresses — 172.253.157.26 and 2a00:1450:400c:c23::1b.