`kosaido-solution.com`

DNSSEC	⚠️ Not signed
A	160.86.253.124^{🇯🇵 So-net160.86.0.0/16 Sony Network Communications Inc.}
		PTR	`ipa056fd7c.ap.nuro.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	`kosaido-solution.com` ⭐
		A	160.86.253.124^{🇯🇵 So-net160.86.0.0/16 Sony Network Communications Inc.}
			PTR	`ipa056fd7c.ap.nuro.jp`
TXT	`google-site-verification=soZDSu0bIlubCpkMaimgwuW7lIT6MeB5WRfANYPmQ_w`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2026-03-25 #4

`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=1774403912

MX for

kosaido-solution.com

Same first word

kosaido-solution.com

DNS History

8 records (5 active, 3 former)

●NSmaster.dns.ne.jp2026-03-22 → 2026-03-25 · 3 obs

○ 2017-06-03 00:52:44
● 2026-03-22 20:12:56
● 2026-03-25 02:02:24

●NSns1.dns.ne.jp2026-03-22 → 2026-03-25 · 3 obs

○ 2017-06-03 00:52:44
● 2026-03-22 20:12:56
● 2026-03-25 02:02:24

○NSns2.atworks.co.jp2015-08-16 → 2017-06-03 · 4 obs

● 2015-08-16 17:37:42
● 2017-06-03 00:52:44
○ 2026-03-22 20:12:56
○ 2026-03-25 02:02:24

●NSns2.dns.ne.jp2026-03-22 → 2026-03-25 · 3 obs

○ 2017-06-03 00:52:44
● 2026-03-22 20:12:56
● 2026-03-25 02:02:24

○NSsv.kosaido-solution.com2015-08-16 → 2017-06-03 · 4 obs

● 2015-08-16 17:37:42
● 2017-06-03 00:52:44
○ 2026-03-22 20:12:56
○ 2026-03-25 02:02:24

●MXkosaido-solution.com2026-03-22 → 2026-03-25 · 3 obs

○ 2017-06-03 00:52:44
● 2026-03-22 20:12:56
● 2026-03-25 02:02:24

○MXsv.kosaido-solution.com2015-08-16 → 2017-06-03 · 4 obs

● 2015-08-16 17:37:42
● 2017-06-03 00:52:44
○ 2026-03-22 20:12:56
○ 2026-03-25 02:02:24

●A160.86.253.1242026-03-22 → 2026-03-25 · 2 obs

● 2026-03-22 20:12:56
● 2026-03-25 02:02:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, a.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net...	-
kosaido-solution.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 kosaido-solution.com (unsigned zone)

⏱️ Timing

Total: 692ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`160.86.253.124`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	1	`kosaido-solution.com (pri: 10)`
TXT	1	`google-site-verification=soZDSu0bIlubCpk`
SOA	1	`master.dns.ne.jp tech.sakura.ad.jp`

Analysis

Mail Server Role

For kosaido-solution.com, the mail server is kosaido-solution.com.

IP Addresses

kosaido-solution.com resolves to one IP number: 160.86.253.124.

Name Servers

kosaido-solution.com is delegated to three name servers master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

kosaido-solution.com at least partially shares name servers with other domains, for instance oopscc.org, dix1.com, u-ban.co.jp, tokaida.com and webmaru.blog.

Host names with one IP number: master.dns.ne.jp points to 210.224.172.18; ns1.dns.ne.jp points to 61.211.236.1; ns2.dns.ne.jp points to 133.167.21.1.

Mail Servers

kosaido-solution.com is served by a single mail server, kosaido-solution.com.

kosaido-solution.com resolves to IP 160.86.253.124.

kosaido-solution.com - robtex.com