f-basic.jp - dns.ninja
f-basic.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.239.32.21🇺🇸 Google216.239.32.0/24 | ||||||
| PTR | any-in-2015.1e100.net | ||||||
| NS | ns0.big.or.jp ⭐ | ||||||
| A | 2001:278:1033:2::72:20🇯🇵 ODN2001:278::/32 IPv6 BLOCK | ||||||
| PTR | ns0.big.or.jp | ||||||
| A | 210.197.72.20🇯🇵 ODN210.197.0.0/16 | ||||||
| PTR | ns0.big.or.jp | ||||||
| NS | ns1.big.or.jp | ||||||
| A | 2001:278:1033:2::72:21🇯🇵 ODN2001:278::/32 IPv6 BLOCK | ||||||
| PTR | ns1.big.or.jp | ||||||
| A | 210.197.72.21🇯🇵 ODN210.197.0.0/16 | ||||||
| PTR | ns1.big.or.jp | ||||||
| MX | mx.sweep-on.net ⭐ | ||||||
| A | 210.197.72.81🇯🇵 ODN210.197.0.0/16 | ||||||
| PTR | mx01.sweep-on.net | ||||||
| A | 210.197.72.82🇯🇵 ODN210.197.0.0/16 | ||||||
| PTR | mx02.sweep-on.net | ||||||
| A | 210.197.72.83🇯🇵 ODN210.197.0.0/16 | ||||||
| PTR | mx03.sweep-on.net | ||||||
| A | 210.197.72.84🇯🇵 ODN210.197.0.0/16 | ||||||
| PTR | mx04.sweep-on.net | ||||||
| SOA | ns0.big.or.jpquestion@big.or.jp 2025-08-26 #0 | ||||||
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=1786513503 | ||||||
Previously NS for
f-basic.jp |
Same first word
f-basic.jp |
Similar names
DNS History
5 records (4 active, 1 former)
○NSf-basic.jp2015-07-23 → 2017-07-06 · 4 obs
● 2017-07-06 14:09:00
○ 2026-04-09 22:12:24
○ 2026-08-12 05:58:38
●MXmx.sweep-on.net2015-07-23 → 2026-08-12 · 2 obs
● 2026-08-12 05:58:38
●A216.239.32.212015-07-23 → 2026-08-12 · 2 obs
● 2026-08-12 05:58:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| f-basic.jp | ns1.big.or.jp, ns0.big.or.jp | 4 records |
✅ Authoritative Response
Server:210.197.72.21
NS records: ns1.big.or.jp, ns0.big.or.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for f-basic.jp (unsigned zone)
⏱️ Timing
Total: 731ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.239.32.21 |
| NS | 2 | ns0.big.or.jp, ns1.big.or.jp |
| MX | 1 | mx.sweep-on.net (pri: 10) |
| SOA | 1 | ns0.big.or.jp question.big.or.jp |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns0.big.or.jp, ns0.big.or.jp, ns1.big.or.jp...)
Analysis
IP Addresses
f-basic.jp resolves to just one IP address, 216.239.32.21.
Two other host names, along with filidian.com, uqbc.org and pixquestions.com, also share IP numbers with f-basic.jp.
Name Servers
DNS delegation for f-basic.jp points to two name servers: ns0.big.or.jp and ns1.big.or.jp.
f-basic.jp shares its NS records with other domains, for example kousen.co.jp, fvg-on.net, planexcars.jp and two others.
f-basic.jp has at least partial name server overlap with other domains, such as fine-tokyo.com, kamakurawakamiya.jp, kkrhakodate.com and two others.
It is common to find these name servers paired with the name servers ns2.big.or.jp.
ns0.big.or.jp directs to 210.197.72.20 and 2001:278:1033:2::72:20. ns1.big.or.jp directs to 210.197.72.21 and 2001:278:1033:2::72:21. Each host name carries two IP addresses.
Mail Servers
The sole mail server for f-basic.jp is mx.sweep-on.net.
Among the domains sharing a mail server setup with f-basic.jp are helter.jp, kkrnet.jp, crl.co.jp and two others.
There is at least a partial MX overlap between f-basic.jp and other domains, including submail.big.or.jp, big.or.jp, big.jp and two others.
mx02.sweep-on.net, mx01.sweep-on.net, mx03.sweep-on.net and mx04.sweep-on.net are mail servers that frequently appear together with these mail servers.
The hostname mx.sweep-on.net resolves to the four IP addresses 210.197.72.81, 210.197.72.82, 210.197.72.83 and 210.197.72.84.