programmingkyouiku.com - dns.ninja

`programmingkyouiku.com`

DNSSEC	⚠️ Not signed
A	202.172.25.24^{🇯🇵 DRNET202.172.24.0/21}
		PTR	`b23.coreserver.jp`
NS	`01.dnsv.jp` ⭐
		A	2400:8500:3300::53^{🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc.}
			PTR	`01.dnsv.jp`
		A	157.7.32.53^{🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team.}
			PTR	`01.dnsv.jp`
NS	`02.dnsv.jp`
		A	157.7.33.53^{🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team.}
			PTR	`02.dnsv.jp`
NS	`03.dnsv.jp`
		A	2400:8500:3000::53^{🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc.}
			PTR	`03.dnsv.jp`
		A	157.7.34.53^{🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team.}
			PTR	`03.dnsv.jp`
NS	`04.dnsv.jp`
		A	2400:8500:3fff::53^{🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc.}
			PTR	`04.dnsv.jp`
		A	157.7.35.53^{🇯🇵 GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team.}
			PTR	`04.dnsv.jp`
MX	`programmingkyouiku.com` ⭐
		A	202.172.25.24^{🇯🇵 DRNET202.172.24.0/21}
			PTR	`b23.coreserver.jp`
SOA	`01.dnsv.jp`hostmaster@dnsv.jp serial=1511484530

`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=1786007654

MX for

programmingkyouiku.com

Same first word

programmingkyouiku.com

DNS History

9 records (6 active, 3 former)

●NS01.dnsv.jp2026-03-28 → 2026-08-06 · 3 obs

○ 2017-10-27 23:00:38
● 2026-03-28 03:02:26
● 2026-08-06 09:30:42

●NS02.dnsv.jp2026-03-28 → 2026-08-06 · 3 obs

○ 2017-10-27 23:00:38
● 2026-03-28 03:02:26
● 2026-08-06 09:30:42

●NS03.dnsv.jp2026-03-28 → 2026-08-06 · 3 obs

○ 2017-10-27 23:00:38
● 2026-03-28 03:02:26
● 2026-08-06 09:30:42

●NS04.dnsv.jp2026-03-28 → 2026-08-06 · 3 obs

○ 2017-10-27 23:00:38
● 2026-03-28 03:02:26
● 2026-08-06 09:30:42

○NSdns1.onamae.com2017-10-27 → 2017-10-27 · 3 obs

● 2017-10-27 23:00:38
○ 2026-03-28 03:02:26
○ 2026-08-06 09:30:42

○NSdns2.onamae.com2017-10-27 → 2017-10-27 · 3 obs

● 2017-10-27 23:00:38
○ 2026-03-28 03:02:26
○ 2026-08-06 09:30:42

●MXprogrammingkyouiku.com2026-03-28 → 2026-08-06 · 2 obs

● 2026-03-28 03:02:26
● 2026-08-06 09:30:42

○A150.95.255.382017-10-27 → 2017-10-27 · 3 obs

● 2017-10-27 23:00:38
○ 2026-03-28 03:02:26
○ 2026-08-06 09:30:42

●A202.172.25.242026-03-28 → 2026-08-06 · 3 obs

○ 2017-10-27 23:00:38
● 2026-03-28 03:02:26
● 2026-08-06 09:30:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, f.gtld-servers.net, m.gtld-servers.net, h.gtld-servers.net...	-
programmingkyouiku.com	01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp	-

✅ Authoritative Response

Server:157.7.33.53

NS records: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for programmingkyouiku.com (unsigned zone)

⏱️ Timing

Total: 1081ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.172.25.24`
NS	4	`01.dnsv.jp, 02.dnsv.jp...`
MX	1	`programmingkyouiku.com (pri: 10)`
SOA	1	`01.dnsv.jp hostmaster.dnsv.jp`

Analysis

Mail Server Role

programmingkyouiku.com handles its own mail, functioning as its own mail server.

IP Addresses

programmingkyouiku.com resolves to just one IP address, 202.172.25.24.

Two other host names, along with cedarsplitrailfence.com, ietto-tower.jp and www.hive.cc, also share IP numbers with programmingkyouiku.com.

Name Servers

The NS records for programmingkyouiku.com point to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.

programmingkyouiku.com shares at least some of its name servers with other domains, including heavystar.net, sivex.top, casakokoro.com and two others.

Host names that have two IP addresses:

01.dnsv.jp resolves to 157.7.32.53 and 2400:8500:3300::53.

03.dnsv.jp resolves to 157.7.34.53 and 2400:8500:3000::53.

04.dnsv.jp resolves to 157.7.35.53 and 2400:8500:3fff::53.

Host names that point to one IP address:

02.dnsv.jp resolves to 157.7.33.53.

Mail Servers

programmingkyouiku.com is served by just one mail server: programmingkyouiku.com.

programmingkyouiku.com points to one IP number — 202.172.25.24.