koofu.jp - robtex.com
koofu.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=1785508203 | ||||||
Subdomains
mail.koofu.jp |
Same first word
Similar names
ofouk.com |
fuoko.org |
fokou.com |
fouko.com |
kufoo.com.cn |
kuoof.com |
fooku.com |
ufook.com |
oufok.com |
fokou.cn |
kuofo.com |
DNS History
9 records (6 active, 3 former)
●NSns-1065.awsdns-05.org2026-03-21 → 2026-07-31 · 3 obs
● 2026-03-21 07:20:38
● 2026-07-31 14:47:10
●NSns-1939.awsdns-50.co.uk2026-03-21 → 2026-07-31 · 3 obs
● 2026-03-21 07:20:38
● 2026-07-31 14:47:10
●NSns-226.awsdns-28.com2026-03-21 → 2026-07-31 · 3 obs
● 2026-03-21 07:20:38
● 2026-07-31 14:47:10
●NSns-693.awsdns-22.net2026-03-21 → 2026-07-31 · 3 obs
● 2026-03-21 07:20:38
● 2026-07-31 14:47:10
○NSns1.db-center.net2015-06-18 → 2017-05-27 · 4 obs
● 2017-05-27 05:03:32
○ 2026-03-21 07:20:38
○ 2026-07-31 14:47:10
○NSns4.db-center.net2015-06-18 → 2017-05-27 · 4 obs
● 2017-05-27 05:03:32
○ 2026-03-21 07:20:38
○ 2026-07-31 14:47:10
●MXmail.koofu.jp2015-06-18 → 2026-07-31 · 2 obs
● 2026-07-31 14:47:10
●A133.88.4.532026-03-21 → 2026-07-31 · 3 obs
● 2026-03-21 07:20:38
● 2026-07-31 14:47:10
○A49.143.243.832015-06-18 → 2017-05-27 · 4 obs
● 2017-05-27 05:03:32
○ 2026-03-21 07:20:38
○ 2026-07-31 14:47:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | h.dns.jp, d.dns.jp, b.dns.jp, c.dns.jp... | - |
| koofu.jp | ns-226.awsdns-28.com, ns-693.awsdns-22.net, ns-1065.awsdns-05.org, ns-1939.awsdns-50.co.uk | - |
✅ Authoritative Response
Server:205.251.196.41
NS records: ns-226.awsdns-28.com, ns-693.awsdns-22.net, ns-1065.awsdns-05.org, ns-1939.awsdns-50.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for koofu.jp (unsigned zone)
⏱️ Timing
Total: 486ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 133.88.4.53 |
| NS | 4 | ns-1065.awsdns-05.org, ns-1939.awsdns-50.co.uk... |
| MX | 1 | mail.koofu.jp (pri: 10) |
| SOA | 1 | ns-1065.awsdns-05.org awsdns-hostmaster. |
Analysis
Hierarchy
koofu.jp is a parent domain of mail.koofu.jp.
IP Addresses
koofu.jp resolves to just one IP address, 133.88.4.53.
koofu.jp shares its IP numbers with other host names like ogkhelmet.com, mail.koofu.jp and ogkkabuto.co.jp.
Name Servers
The NS records for koofu.jp point to four name servers: ns-226.awsdns-28.com, ns-693.awsdns-22.net, ns-1065.awsdns-05.org and ns-1939.awsdns-50.co.uk.
koofu.jp shares at least some of its name servers with other domains, including yorktelehealth.com, test.ghcg.com, verticalhealth.net and two others.
The host names ns-226.awsdns-28.com, ns-693.awsdns-22.net, ns-1065.awsdns-05.org and ns-1939.awsdns-50.co.uk each resolve to two IP addresses: ns-226.awsdns-28.com resolves to 205.251.192.226 and 2600:9000:5300:e200::1; ns-693.awsdns-22.net resolves to 205.251.194.181 and 2600:9000:5302:b500::1; ns-1065.awsdns-05.org resolves to 205.251.196.41 and 2600:9000:5304:2900::1; ns-1939.awsdns-50.co.uk resolves to 205.251.199.147 and 2600:9000:5307:9300::1.
Mail Servers
The sole mail server for koofu.jp is mail.koofu.jp.
mail.koofu.jp has exactly one IP number: 133.88.4.53.