kojimura.com - robtex.com
kojimura.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 203.137.115.42🇯🇵 IDC203.137.112.0/21 Frontier Inc. | ||||||
| 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 | kojimura.com ⭐ | ||||||
| A | 203.137.115.42🇯🇵 IDC203.137.112.0/21 Frontier Inc. | ||||||
| MX | mail.kojimra.com ⭐ | ||||||
| TXT | v=spf1 +a +mx ~all | ||||||
| SOA | 01.dnsv.jphostmaster@dnsv.jp serial=1594178113 | ||||||
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=1774744977 | ||||||
MX for
kojimura.com |
Same first word
kojimura.com |
Similar names
DNS History
8 records (7 active, 1 former)
●MXkojimura.com2015-08-09 → 2026-03-29 · 2 obs
● 2026-03-29 00:49:48
●MXmail.kojimra.com2015-08-09 → 2026-03-29 · 2 obs
● 2026-03-29 00:49:48
○A180.222.185.602015-08-09 → 2020-02-28 · 4 obs
● 2020-02-28 13:22:56
○ 2026-02-25 10:33:00
○ 2026-03-29 00:49:48
●A203.137.115.422026-02-25 → 2026-03-29 · 3 obs
● 2026-02-25 10:33:00
● 2026-03-29 00:49:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| kojimura.com | 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp | - |
✅ Authoritative Response
Server:157.7.34.53
NS records: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kojimura.com (unsigned zone)
⏱️ Timing
Total: 1014ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 203.137.115.42 |
| NS | 4 | 01.dnsv.jp, 02.dnsv.jp... |
| MX | 2 | kojimura.com (pri: 100), mail.kojimra.com (pri: 100) |
| TXT | 1 | v=spf1 +a +mx ~all |
| SOA | 1 | 01.dnsv.jp hostmaster.dnsv.jp |
Analysis
Mail Server Role
For kojimura.com, the mail server is kojimura.com.
mail.kojimra.com is a mail server commonly used with kojimura.com.
IP Addresses
kojimura.com resolves to one IP number: 203.137.115.42.
other host names including mail.nenki.jp, laughside.com, mail.hottashinzo.com, mail.uruma.info and jln.ne.jp share IP numbers with kojimura.com.
Name Servers
kojimura.com is delegated to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.
kojimura.com at least partially shares name servers with other domains, for instance safehealth.online, ga4.jp, kameshin.com, wami.jp and project-monkey.com.
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
kojimura.com is handled by two mail servers: kojimura.com and mail.kojimra.com.
Hostnames with a single IP:
kojimura.com points to 203.137.115.42.