kumabook.net - robtex.com
kumabook.net
| DNSSEC | ⚠️ Not signed | ||||||
| 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 | www.kumabook.net ⭐ | ||||||
| A | 203.167.63.116🇯🇵 KVH203.167.48.0/20 | ||||||
| TXT | _fysvjz93a8bw7p4pnk49g8r0krpsck4 | ||||||
| TXT | v=spf1 +ip4:203.167.63.116 +ip4:203.167.63.234 +ip4:210.224.185.201 ~all | ||||||
| SOA | 01.dnsv.jphostmaster@dnsv.jp serial=1761726069 | ||||||
net
| 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=1777985336 | ||||||
Subdomains
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
●NS01.dnsv.jp2017-01-10 → 2026-05-05 · 3 obs
● 2017-01-10 14:30:02
● 2026-05-05 13:13:52
●NS02.dnsv.jp2017-01-10 → 2026-05-05 · 3 obs
● 2017-01-10 14:30:02
● 2026-05-05 13:13:52
●NS03.dnsv.jp2017-01-10 → 2026-05-05 · 3 obs
● 2017-01-10 14:30:02
● 2026-05-05 13:13:52
●NS04.dnsv.jp2017-01-10 → 2026-05-05 · 3 obs
● 2017-01-10 14:30:02
● 2026-05-05 13:13:52
○NSdns12.dion.ne.jp2015-08-25 → 2016-04-26 · 4 obs
● 2016-04-26 18:17:56
○ 2017-01-10 14:30:02
○ 2026-05-05 13:13:52
○NSwww.kumabook.net2015-08-25 → 2016-04-26 · 4 obs
● 2016-04-26 18:17:56
○ 2017-01-10 14:30:02
○ 2026-05-05 13:13:52
●MXwww.kumabook.net2015-08-25 → 2026-05-05 · 2 obs
● 2026-05-05 13:13:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | m.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net... | - |
| kumabook.net | 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 kumabook.net (unsigned zone)
⏱️ Timing
Total: 1146ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | 01.dnsv.jp, 02.dnsv.jp... |
| MX | 1 | www.kumabook.net (pri: 10) |
| TXT | 2 | _fysvjz93a8bw7p4pnk49g8r0krpsck4, v=spf1 +ip4:203.167.63.116 +ip4:203.167. |
| SOA | 1 | 01.dnsv.jp hostmaster.dnsv.jp |
Analysis
Hierarchy
kumabook.net is parent of mail.kumabook.net and www.kumabook.net.
Name Servers
kumabook.net is delegated to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.
kumabook.net at least partially shares its name servers with other domains, for instance osamut.net, nichibi-chinese.com, coffee-delta.com, teps4545.com and sbm-un.com.
Two IPs per host:
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.
One IP per host:
02.dnsv.jp points to 157.7.33.53.
Mail Servers
kumabook.net is served by a single mail server, www.kumabook.net.
www.kumabook.net points to IP number 203.167.63.116.