`corpokkur.com`

DNSSEC	⚠️ Not signed
A	114.17.21.140^{🇯🇵 KDDI114.17.0.0/16}
		PTR	`dns10.n-server.com`
NS	`ns.corpokkur.com` ⭐ ⚠️ Not in parent delegation
		A	114.17.21.140^{🇯🇵 KDDI114.17.0.0/16}
			PTR	`dns10.n-server.com`
NS	`dns10.n-server.com` ⚠️ Not in zone NS records
		A	114.17.21.140^{🇯🇵 KDDI114.17.0.0/16}
			PTR	`dns10.n-server.com`
NS	`dns136.n-server.com` ⚠️ Not in zone NS records
		A	114.17.21.136^{🇯🇵 KDDI114.17.0.0/16}
			PTR	`dns136.n-server.com`
MX	`mail.corpokkur.com` ⭐
		A	114.17.21.140^{🇯🇵 KDDI114.17.0.0/16}
			PTR	`dns10.n-server.com`
TXT	`v=spf1 +a +mx -all`
SOA	`ns.corpokkur.com`plesk@purenic.jp 2025-10-01 #2

`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=1774575132

Subdomains

ns.corpokkur.com

DNS History

6 records (5 active, 1 former)

●NSdns10.n-server.com2026-03-27 → 2026-03-27 · 3 obs

○ 2015-08-08 16:49:06
● 2026-03-27 01:32:48
● 2026-03-27 01:32:50

●NSdns136.n-server.com2026-03-27 → 2026-03-27 · 3 obs

○ 2015-08-08 16:49:06
● 2026-03-27 01:32:48
● 2026-03-27 01:32:50

●NSns.corpokkur.com2015-08-08 → 2026-03-27 · 2 obs

● 2015-08-08 16:49:06
● 2026-03-27 01:32:50

●MXmail.corpokkur.com2015-08-08 → 2026-03-27 · 2 obs

● 2015-08-08 16:49:06
● 2026-03-27 01:32:50

○A106.186.69.52015-08-08 → 2017-05-23 · 4 obs

● 2015-08-08 16:49:06
● 2017-05-23 00:22:46
○ 2026-03-27 01:32:48
○ 2026-03-27 01:32:50

●A114.17.21.1402026-03-27 → 2026-03-27 · 3 obs

○ 2017-05-23 00:22:46
● 2026-03-27 01:32:48
● 2026-03-27 01:32:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
corpokkur.com	dns10.n-server.com, dns136.n-server.com	2 records

✅ Authoritative Response

Server:114.17.21.140

NS records: dns10.n-server.com, dns136.n-server.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for corpokkur.com (unsigned zone)

⏱️ Timing

Total: 402ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`114.17.21.140`
NS	1	`ns.corpokkur.com`
MX	1	`mail.corpokkur.com (pri: 10)`
TXT	1	`v=spf1 +a +mx -all`
SOA	1	`ns.corpokkur.com plesk.purenic.jp`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns10.n-server.com, dns136.n-server.com)

Analysis

Hierarchy

corpokkur.com is the parent of ns.corpokkur.com.

IP Addresses

corpokkur.com resolves to a single IP: 114.17.21.140.

Other host names, for instance mail.kumikosenglishsalon.com, ns1.syo-nanen.com, mail.naraya-honten.com, ns.katsuki-boxing.co.jp and ns.tanigawa-dc.com share IP numbers with corpokkur.com.

Name Servers

corpokkur.com delegates to three name servers: ns.corpokkur.com, dns10.n-server.com and dns136.n-server.com.

corpokkur.com shares some name servers with other domains, for example marine-ponics.co.jp, yumin.jp, two-u.jp, office-kamifukuoka.com and horenji.or.jp.

these name servers are often used with dns14.n-server.com, dns19.n-server.com, dns15.n-server.com, dns20.n-server.com, dns12.n-server.com, dns7.n-server.com, dns16.n-server.com, dns5.n-server.com, dns3.n-server.com and p03ns11.puretopure.jp.

Host names sharing one IP

ns.corpokkur.com points to: 114.17.21.140

dns10.n-server.com points to: 114.17.21.140

dns136.n-server.com points to: 114.17.21.136

Host names pointing to 114.17.21.140: ns.corpokkur.com, dns10.n-server.com

Mail Servers

corpokkur.com is handled by a single mail server, mail.corpokkur.com.

Host name mail.corpokkur.com points to IP 114.17.21.140.

corpokkur.com - robtex.com

corpokkur.com

com