cbb.jp - robtex.com
cbb.jp
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1786203003 | ||||||
Subdomains
mail5.cbb.jp |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSns-1358.awsdns-41.org2015-08-31 → 2026-08-08 · 2 obs
● 2026-08-08 15:45:12
●NSns-1971.awsdns-54.co.uk2015-08-31 → 2026-08-08 · 2 obs
● 2026-08-08 15:45:12
●NSns-41.awsdns-05.com2015-08-31 → 2026-08-08 · 2 obs
● 2026-08-08 15:45:12
●NSns-697.awsdns-23.net2015-08-31 → 2026-08-08 · 2 obs
● 2026-08-08 15:45:12
●MXmail5.cbb.jp2015-08-31 → 2026-08-08 · 2 obs
● 2026-08-08 15:45:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| cbb.jp | ns-697.awsdns-23.net, ns-1358.awsdns-41.org, ns-1971.awsdns-54.co.uk, ns-41.awsdns-05.com | - |
✅ Authoritative Response
Server:205.251.197.78
NS records: ns-697.awsdns-23.net, ns-1358.awsdns-41.org, ns-1971.awsdns-54.co.uk, ns-41.awsdns-05.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cbb.jp (unsigned zone)
⏱️ Timing
Total: 1265ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-1358.awsdns-41.org, ns-1971.awsdns-54.co.uk... |
| MX | 1 | mail5.cbb.jp (pri: 10) |
| TXT | 1 | v=spf1 +ip4:153.126.251.183 ~all |
| SOA | 1 | ns-41.awsdns-05.com awsdns-hostmaster.am |
Analysis
Hierarchy
cbb.jp is the parent zone for mail5.cbb.jp.
Name Servers
cbb.jp has four authoritative name servers: ns-41.awsdns-05.com, ns-697.awsdns-23.net, ns-1358.awsdns-41.org and ns-1971.awsdns-54.co.uk.
cbb.jp partially shares its NS delegation with several other domains, including msg.passbrains.com, i-energy.org, riverways.lender.ai and two others.
These name servers regularly co-occur with the name servers ns-834.awsdns-40.net, ns-1212.awsdns-23.org and ns-1940.awsdns-50.co.uk.
ns-41.awsdns-05.com, ns-697.awsdns-23.net, ns-1358.awsdns-41.org and ns-1971.awsdns-54.co.uk each carry two IP addresses. ns-41.awsdns-05.com has 205.251.192.41 and 2600:9000:5300:2900::1; ns-697.awsdns-23.net has 205.251.194.185 and 2600:9000:5302:b900::1; ns-1358.awsdns-41.org has 205.251.197.78 and 2600:9000:5305:4e00::1; ns-1971.awsdns-54.co.uk has 205.251.199.179 and 2600:9000:5307:b300::1.
Mail Servers
cbb.jp has one mail server: mail5.cbb.jp.
mail5.cbb.jp resolves to a single IP number: 153.126.251.183.