hdf.jp - robtex.com
hdf.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 35.73.181.23🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix | ||||||
| PTR | ec2-35-73-181-23.ap-northeast-1.compute.amazonaws.com | ||||||
| NS | master.dns.ne.jp ⭐ | ||||||
| A | 210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | master.dns.ne.jp | ||||||
| NS | ns1.dns.ne.jp | ||||||
| A | 61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | ns1.dns.ne.jp | ||||||
| NS | ns2.dns.ne.jp | ||||||
| A | 133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan | ||||||
| PTR | ns2.dns.ne.jp | ||||||
| MX | mail.hdf.jp ⭐ | ||||||
| A | 202.181.97.45🇯🇵 SAKURA-B202.181.96.0/20 (6/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www235.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www235.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2025-11-18 #2 | ||||||
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=1785567603 | ||||||
Previously MX for
hdf.jp |
Subdomains
mail.hdf.jp |
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
○MXhdf.jp2015-07-25 → 2016-12-18 · 4 obs
● 2016-12-18 17:45:40
○ 2026-07-25 14:01:04
○ 2026-08-01 07:18:00
●MXmail.hdf.jp2026-07-25 → 2026-08-01 · 3 obs
● 2026-07-25 14:01:04
● 2026-08-01 07:18:00
○A202.181.97.452015-07-25 → 2016-12-18 · 4 obs
● 2016-12-18 17:45:40
○ 2026-07-25 14:01:04
○ 2026-08-01 07:18:00
●A35.73.181.232026-07-25 → 2026-08-01 · 3 obs
● 2026-07-25 14:01:04
● 2026-08-01 07:18:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | h.dns.jp, a.dns.jp, b.dns.jp, c.dns.jp... | - |
| hdf.jp | ns1.dns.ne.jp, ns2.dns.ne.jp | 2 records |
✅ Authoritative Response
Server:61.211.236.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for hdf.jp (unsigned zone)
⏱️ Timing
Total: 1365ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 35.73.181.23 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | mail.hdf.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www235.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.dns.ne.jp, ns1.dns.ne.jp)
Analysis
Hierarchy
hdf.jp is the parent zone for mail.hdf.jp.
IP Addresses
hdf.jp points to a single IP number: 35.73.181.23.
Additional host names — icc.or.jp, uetomi.jp, kunibikimesse.jp and two others — share IP numbers with hdf.jp.
Name Servers
hdf.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
hdf.jp partially shares its NS delegation with several other domains, including knit-cure.com, bekkaku.com, dct.me and two others.
master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp each resolve to a single IP address: master.dns.ne.jp resolves to 210.224.172.18, ns1.dns.ne.jp resolves to 61.211.236.1 and ns2.dns.ne.jp resolves to 133.167.21.1.
Mail Servers
hdf.jp has one mail server: mail.hdf.jp.
mail.hdf.jp resolves to a single IP number: 202.181.97.45.