`oikekenchiku.com`

DNSSEC	⚠️ Not signed
NS	`oikekenchiku.com` ⭐
NS	`dnss10.so-net.ne.jp`
		A	210.139.255.1^{🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc.}
			PTR	`dnss10.so-net.ne.jp`
NS	`dnss11.so-net.ne.jp`
		A	210.139.255.17^{🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc.}
			PTR	`dnss11.so-net.ne.jp`
MX	`sonet-common-mx.xspmail.jp` ⭐
		A	2001:240:bb81:94:160:13:60:174^{🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 )}
			PTR	`sonet-common-mx.xspmail.jp`
		A	160.13.60.174^{🇯🇵 IIJ-AS160.13.0.0/16 IIJ IPv4 BLOCK ( AS2497 )}
			PTR	`sonet-common-mx.xspmail.jp`
TXT	`v=spf1 +include:plusdomain.spf.so-net.ne.jp ~all`
SOA	`oikekenchiku.com`hostmaster@oikekenchiku.com serial=2602171610

`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=1778775111

NS for

oikekenchiku.com

Same first word

oikekenchiku.com

DNS History

5 records (4 active, 1 former)

●NSdnss10.so-net.ne.jp2016-12-17 → 2026-05-14 · 2 obs

● 2016-12-17 04:09:40
● 2026-05-14 16:38:36

●NSdnss11.so-net.ne.jp2016-12-17 → 2026-05-14 · 2 obs

● 2016-12-17 04:09:40
● 2026-05-14 16:38:36

●NSoikekenchiku.com2016-12-17 → 2026-05-14 · 2 obs

● 2016-12-17 04:09:40
● 2026-05-14 16:38:36

○MXmxpin.ms.so-net.ne.jp2016-12-17 → 2017-10-05 · 4 obs

● 2016-12-17 04:09:40
● 2017-10-05 08:21:50
○ 2026-05-13 08:30:40
○ 2026-05-14 16:38:36

●MXsonet-common-mx.xspmail.jp2026-05-13 → 2026-05-14 · 3 obs

○ 2017-10-05 08:21:50
● 2026-05-13 08:30:40
● 2026-05-14 16:38:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
oikekenchiku.com	dnss10.so-net.ne.jp, dnss11.so-net.ne.jp	-

✅ Authoritative Response

Server:210.139.255.17

NS records: dnss10.so-net.ne.jp, dnss11.so-net.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for oikekenchiku.com (unsigned zone)

⏱️ Timing

Total: 967ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dnss10.so-net.ne.jp, dnss11.so-net.ne.jp`
MX	1	`sonet-common-mx.xspmail.jp (pri: 10)`
TXT	1	`v=spf1 +include:plusdomain.spf.so-net.ne`
SOA	1	`oikekenchiku.com hostmaster.oikekenchiku`

Analysis

Name Server Role

oikekenchiku.com serves as a name server for oikekenchiku.com.

dnss10.so-net.ne.jp and dnss11.so-net.ne.jp are commonly used as name servers together with oikekenchiku.com.

Name Servers

oikekenchiku.com is delegated to three name servers: oikekenchiku.com, dnss10.so-net.ne.jp and dnss11.so-net.ne.jp.

oikekenchiku.com at least partially shares name servers with other domains such as utsunomiya-jp.com, 410publish.com, studio-seals.com, takeuchi-ius.com and ichijyokai.or.jp.

Host names with a single IP address:

dnss10.so-net.ne.jp points to 210.139.255.1

dnss11.so-net.ne.jp points to 210.139.255.17

Mail Servers

oikekenchiku.com is handled by a single mail server, sonet-common-mx.xspmail.jp.

oikekenchiku.com shares the same mail server setup as other domains, including koshin-itagaki.com, base1996.com, commue.jp, s-pileface.com and mkspace-1.com.

Host name sonet-common-mx.xspmail.jp points to IPs 2001:240:bb81:94:160:13:60:174 and 160.13.60.174.

oikekenchiku.com - robtex.com