fukazawa.info - robtex.com
fukazawa.info
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2403:3a00:201:1b:49:212:180:166🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | www2726.sakura.ne.jp | ||||||
| A | 49.212.180.166🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| 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 | fukazawa.info ⭐ | ||||||
| A | 2403:3a00:201:1b:49:212:180:166🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | www2726.sakura.ne.jp | ||||||
| A | 49.212.180.166🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2726.sakura.ne.jp | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2015-04-26 #6 | ||||||
info
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.info.afilias-nst.info ⭐ | ||||||
| NS | a2.info.afilias-nst.info | ||||||
| NS | b0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | b2.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | c0.info.afilias-nst.info | ||||||
| NS | d0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| SOA | a0.info.afilias-nst.infohostmaster@donuts.email serial=1775101369 | ||||||
MX for
fukazawa.info |
Same first word
DNS History
6 records (6 active, 0 former)
●MXfukazawa.info2015-08-19 → 2026-04-02 · 2 obs
● 2026-04-02 04:13:58
●A2403:3a00:201:1b:49:212:180:1662015-08-19 → 2026-04-02 · 2 obs
● 2026-04-02 04:13:58
●A49.212.180.1662015-08-19 → 2026-04-02 · 2 obs
● 2026-04-02 04:13:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| info | a0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info | - |
| fukazawa.info | ns2.dns.ne.jp, ns1.dns.ne.jp | - |
✅ Authoritative Response
Server:133.167.21.1
NS records: ns2.dns.ne.jp, ns1.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for fukazawa.info (unsigned zone)
⏱️ Timing
Total: 684ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.180.166 |
| AAAA | 1 | 2403:3a00:201:1b:49:212:180:166 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | fukazawa.info (pri: 10) |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Mail Server Role
fukazawa.info is the mail server for fukazawa.info.
IP Addresses
fukazawa.info resolves to two IP numbers: 2403:3a00:201:1b:49:212:180:166 and 49.212.180.166.
Other host names, for instance osakagika.sakura.ne.jp, ark-dc.net, mc-books.sakura.ne.jp, yamato-f.jp and narajin.net share IP numbers with fukazawa.info.
Name Servers
fukazawa.info delegates to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
fukazawa.info shares some name servers with other domains, for example the-takasakis.net, ca-lab.com, arakawa-net.com, akmjp.com and inks-ad.com.
These name servers are commonly used with the name servers dns.sakura.ad.jp.
Host names with a single IP: master.dns.ne.jp points to 210.224.172.18; ns1.dns.ne.jp points to 61.211.236.1; ns2.dns.ne.jp points to 133.167.21.1.
Mail Servers
One mail server handles fukazawa.info.
fukazawa.info resolves to two IPs: 2403:3a00:201:1b:49:212:180:166 and 49.212.180.166.