zfssk.com - robtex.com
zfssk.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 59.106.165.212🇯🇵 SAKURA-B59.106.128.0/18 (7-128/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| NS | sv1.act21.co.jp ⭐ | ||||||
| A | 59.106.165.212🇯🇵 SAKURA-B59.106.128.0/18 (7-128/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| NS | ns2.act21.co.jp | ||||||
| A | 59.106.165.213🇯🇵 SAKURA-B59.106.128.0/18 (7-128/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| MX | sv1.zfssk.com ⭐ | ||||||
| A | 59.106.165.212🇯🇵 SAKURA-B59.106.128.0/18 (7-128/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| TXT | v=spf1 +a +mx ~all | ||||||
| SOA | sv1.act21.co.jpadmin@sv1.act21.co.jp 2026-07-02 #2 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1784100382 | ||||||
Subdomains
Same first word
zfssk.com |
Similar names
DNS History
5 records (4 active, 1 former)
●NSns2.act21.co.jp2015-06-24 → 2026-07-15 · 2 obs
● 2026-07-15 07:40:42
●NSsv1.act21.co.jp2015-06-24 → 2026-07-15 · 2 obs
● 2026-07-15 07:40:42
●MXsv1.zfssk.com2015-06-24 → 2026-07-15 · 2 obs
● 2026-07-15 07:40:42
○A59.106.152.872015-06-24 → 2017-12-27 · 4 obs
● 2017-12-27 08:39:48
○ 2026-03-03 00:46:26
○ 2026-07-15 07:40:42
●A59.106.165.2122026-03-03 → 2026-07-15 · 3 obs
● 2026-03-03 00:46:26
● 2026-07-15 07:40:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, f.gtld-servers.net, j.gtld-servers.net, c.gtld-servers.net... | - |
| zfssk.com | sv1.act21.co.jp, ns2.act21.co.jp | - |
✅ Authoritative Response
Server:59.106.165.212
NS records: sv1.act21.co.jp, ns2.act21.co.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for zfssk.com (unsigned zone)
⏱️ Timing
Total: 1138ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 59.106.165.212 |
| NS | 2 | ns2.act21.co.jp, sv1.act21.co.jp |
| MX | 1 | sv1.zfssk.com (pri: 20) |
| TXT | 1 | v=spf1 +a +mx ~all |
| SOA | 1 | sv1.act21.co.jp admin.sv1.act21.co.jp |
Analysis
Hierarchy
zfssk.com is the parent domain of raq550.zfssk.com and sv1.zfssk.com.
IP Addresses
zfssk.com points to a single IP number: 59.106.165.212.
Additional host names — raq1.act21.co.jp, raq550.act21.co.jp, sv1.act21.co.jp and two others — share IP numbers with zfssk.com.
Name Servers
zfssk.com is delegated to two name servers: ns2.act21.co.jp and sv1.act21.co.jp.
zfssk.com has the same name server configuration as other domains like act21.co.jp and yco.co.jp.
ns2.act21.co.jp and sv1.act21.co.jp each resolve to one IP number: ns2.act21.co.jp points to 59.106.165.213 and sv1.act21.co.jp points to 59.106.165.212.
Mail Servers
zfssk.com has one mail server: sv1.zfssk.com.
sv1.zfssk.com resolves to a single IP number: 59.106.165.212.