kyoikusoft.com - robtex.com
kyoikusoft.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 160.251.201.238🇯🇵 GMOOSK-NET160.251.201.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | v160-251-201-238.gzfz.static.cnode.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 | mail.kyoikusoft.com ⭐ | ||||||
| A | 160.251.201.238🇯🇵 GMOOSK-NET160.251.201.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | v160-251-201-238.gzfz.static.cnode.jp | ||||||
| TXT | v=spf1 ip4:160.251.201.238 ~all | ||||||
| SOA | 01.dnsv.jphostmaster@dnsv.jp serial=1727925812 | ||||||
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.netnstld@verisign-grs.com serial=1774606072 | ||||||
Subdomains
mail.kyoikusoft.com |
DNS History
10 records (6 active, 4 former)
●NS01.dnsv.jp2015-10-20 → 2026-03-27 · 3 obs
● 2015-10-20 13:59:42
● 2026-03-27 10:35:06
●NS02.dnsv.jp2015-10-20 → 2026-03-27 · 3 obs
● 2015-10-20 13:59:42
● 2026-03-27 10:35:06
●NS03.dnsv.jp2015-10-20 → 2026-03-27 · 3 obs
● 2015-10-20 13:59:42
● 2026-03-27 10:35:06
●NS04.dnsv.jp2015-10-20 → 2026-03-27 · 3 obs
● 2015-10-20 13:59:42
● 2026-03-27 10:35:06
○NS2nd.dnsv.jp2015-06-03 → 2015-06-03 · 3 obs
○ 2015-10-20 13:59:42
○ 2026-03-27 10:35:06
○NSns.kyoikusoft.com2015-06-03 → 2015-06-03 · 3 obs
○ 2015-10-20 13:59:42
○ 2026-03-27 10:35:06
●MXmail.kyoikusoft.com2015-06-03 → 2026-03-27 · 2 obs
● 2026-03-27 10:35:06
○A1.33.189.2152015-06-03 → 2016-07-20 · 4 obs
● 2016-07-20 09:17:08
○ 2016-12-30 15:02:42
○ 2026-03-27 10:35:06
●A160.251.201.2382026-03-27 → 2026-03-27 · 3 obs
● 2026-03-27 10:35:04
● 2026-03-27 10:35:06
○A52.197.212.22016-12-30 → 2017-11-10 · 5 obs
● 2016-12-30 15:02:42
● 2017-11-10 07:37:36
○ 2026-03-27 10:35:04
○ 2026-03-27 10:35:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, m.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net... | - |
| kyoikusoft.com | 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp | - |
✅ Authoritative Response
Server:157.7.32.53
NS records: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kyoikusoft.com (unsigned zone)
⏱️ Timing
Total: 1130ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 160.251.201.238 |
| NS | 4 | 01.dnsv.jp, 02.dnsv.jp... |
| MX | 1 | mail.kyoikusoft.com (pri: 10) |
| TXT | 1 | v=spf1 ip4:160.251.201.238 ~all |
| SOA | 1 | 01.dnsv.jp hostmaster.dnsv.jp |
Analysis
Hierarchy
kyoikusoft.com is the parent of mail.kyoikusoft.com.
IP Addresses
kyoikusoft.com resolves to a single IP address: 160.251.201.238.
Other host names including v160-251-201-238.gzfz.static.cnode.jp, www.kyoikusha.co.jp, mail.kyoikusoft.com, mail.kyoikusha.co.jp and ex-nippon.com share IP numbers with kyoikusoft.com.
Name Servers
kyoikusoft.com is delegated to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.
kyoikusoft.com at least partially shares name servers with other domains, including imagoura.com, otsu-yuyukan.net, kato-farm.net, ashikagakigyo.com and agents-i.jp.
Host names with two IP numbers:
01.dnsv.jp points to 2400:8500:3300::53 and 157.7.32.53.
03.dnsv.jp points to 2400:8500:3000::53 and 157.7.34.53.
04.dnsv.jp points to 2400:8500:3fff::53 and 157.7.35.53.
Host names with one IP number:
02.dnsv.jp points to 157.7.33.53.
Mail Servers
kyoikusoft.com is handled by a single mail server, mail.kyoikusoft.com.
mail.kyoikusoft.com points to a single IP: 160.251.201.238.