`teiiku.jp`

DNSSEC	⚠️ Not signed
A	114.17.21.141^{🇯🇵 KDDI114.17.0.0/16}
		PTR	`dns12.n-server.com`
NS	`ns.teiiku.jp` ⭐ ⚠️ Not in parent delegation
		A	114.17.21.141^{🇯🇵 KDDI114.17.0.0/16}
			PTR	`dns12.n-server.com`
NS	`dns12.n-server.com` ⚠️ Not in zone NS records
		A	114.17.21.141^{🇯🇵 KDDI114.17.0.0/16}
			PTR	`dns12.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.teiiku.jp` ⭐
		A	114.17.21.141^{🇯🇵 KDDI114.17.0.0/16}
			PTR	`dns12.n-server.com`
TXT	`v=spf1 +a +mx -all`
SOA	`ns.teiiku.jp`plesk@purenic.jp 2025-10-01 #2

`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=1776212102

Subdomains

ns.teiiku.jp

mail.teiiku.jp

Same first word

teiiku.jp

Similar names

ituike.cn

DNS History

6 records (5 active, 1 former)

●NSdns12.n-server.com2026-04-04 → 2026-04-15 · 3 obs

○ 2015-07-21 08:25:10
● 2026-04-04 08:58:56
● 2026-04-15 00:52:30

●NSdns136.n-server.com2026-04-04 → 2026-04-15 · 3 obs

○ 2015-07-21 08:25:10
● 2026-04-04 08:58:56
● 2026-04-15 00:52:30

●NSns.teiiku.jp2015-07-21 → 2026-04-15 · 2 obs

● 2015-07-21 08:25:10
● 2026-04-15 00:52:30

●MXmail.teiiku.jp2015-07-21 → 2026-04-15 · 2 obs

● 2015-07-21 08:25:10
● 2026-04-15 00:52:30

○A106.186.69.92015-07-21 → 2018-12-26 · 4 obs

● 2015-07-21 08:25:10
● 2018-12-26 14:30:14
○ 2026-04-04 08:58:56
○ 2026-04-15 00:52:30

●A114.17.21.1412026-04-04 → 2026-04-15 · 3 obs

○ 2018-12-26 14:30:14
● 2026-04-04 08:58:56
● 2026-04-15 00:52:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
teiiku.jp	dns136.n-server.com, dns12.n-server.com	-

✅ Authoritative Response

Server:114.17.21.136

NS records: dns136.n-server.com, dns12.n-server.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for teiiku.jp (unsigned zone)

⏱️ Timing

Total: 1255ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`114.17.21.141`
NS	1	`ns.teiiku.jp`
MX	1	`mail.teiiku.jp (pri: 10)`
TXT	1	`v=spf1 +a +mx -all`
SOA	1	`ns.teiiku.jp plesk.purenic.jp`

Analysis

Hierarchy

teiiku.jp is a parent of ns.teiiku.jp and mail.teiiku.jp.

IP Addresses

teiiku.jp points to IP number 114.17.21.141.

For instance, other host names mail.palermo.jp, mail.k-hari-seikotsu.com, ns.nihon-shokusan.co.jp, ns.e-hanayashiki.com and ns.takano-shika.or.jp share IP numbers with teiiku.jp.

Name Servers

The delegation for teiiku.jp is handled by three name servers: dns12.n-server.com, dns136.n-server.com and ns.teiiku.jp.

teiiku.jp shares name servers with other domains at least partially, for example shikata.co.jp, um-ts.co.jp, maruageha.jp, k1ckbox1ng.com and free-6226.com.

these name servers are often used with the following: dns10.n-server.com, dns20.n-server.com, dns7.n-server.com, dns5.n-server.com, dns16.n-server.com, dns14.n-server.com, dns19.n-server.com, dns3.n-server.com, p03ns11.puretopure.jp and dns15.n-server.com.

Host names with a single IP:

dns12.n-server.com points to 114.17.21.141

dns136.n-server.com points to 114.17.21.136

ns.teiiku.jp points to 114.17.21.141

Host names that point to 114.17.21.141: dns12.n-server.com and ns.teiiku.jp

Mail Servers

teiiku.jp is handled by a single mail server, mail.teiiku.jp.

mail.teiiku.jp points to a single IP: 114.17.21.141.

teiiku.jp - robtex.com

teiiku.jp

jp