www.knac21.com - robtex.com
www.knac21.com
| CNAME | knac21.com | ||||||
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2401:2500:101:7:153:120:144:241🇯🇵 SAKURA-A2401:2500::/32 (ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| A | 153.120.144.241🇯🇵 SAKURA-A153.120.128.0/18 (3/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, 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 | knac21.com ⭐ | ||||||
| A | 2401:2500:101:7:153:120:144:241🇯🇵 SAKURA-A2401:2500::/32 (ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| A | 153.120.144.241🇯🇵 SAKURA-A153.120.128.0/18 (3/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | 241.144.120.153.static.www8713m.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www8713m.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2019-12-23 #19 | ||||||
knac21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2401:2500:101:7:153:120:144:241🇯🇵 SAKURA-A2401:2500::/32 (ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| A | 153.120.144.241🇯🇵 SAKURA-A153.120.128.0/18 (3/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| NS | master.dns.ne.jp ⭐ | ||||||
| NS | ns1.dns.ne.jp | ||||||
| NS | ns2.dns.ne.jp | ||||||
| MX | knac21.com ⭐ | ||||||
| TXT | v=spf1 a:www8713m.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2019-12-23 #19 | ||||||
Previously MX for
Same first word
Similar names
DNS History
3 records (1 active, 2 former)
○A211.5.243.2002017-06-07 → 2017-06-07 · 3 obs
● 2017-06-07 11:19:50
○ 2026-04-29 02:38:28
○A59.106.29.52015-06-23 → 2016-09-13 · 4 obs
● 2016-09-13 20:12:54
○ 2017-06-07 11:19:50
○ 2026-04-29 02:38:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, d.gtld-servers.net... | - |
| knac21.com | ns1.dns.ne.jp, ns2.dns.ne.jp | - |
✅ Authoritative Response
Server:133.167.21.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knac21.com (unsigned zone)
⏱️ Timing
Total: 459ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| CNAME | 1 | knac21.com |
Analysis
IP Addresses
www.knac21.com points to two IP numbers: 2401:2500:101:7:153:120:144:241 and 153.120.144.241.
Other host names, for instance miyawaki.info, masudazaimoku.com, honobono-kai.com, iimo1.sakura.ne.jp and 241.144.120.153.static.www8713m.sakura.ne.jp share IP numbers with www.knac21.com.
Name Servers
The delegation for www.knac21.com is handled by three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
www.knac21.com at least partially shares name servers with other domains, for instance lawyer-ohira.com, waseda-blossom.com, msv-im06325.sakura.ne.jp, webpark5033.sakura.ne.jp and pexs.sakura.ne.jp.
Host names with one IP number:
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
www.knac21.com is handled by a single mail server, knac21.com.
www.knac21.com uses the same mail server setup as other domains, such as knac21.com.
knac21.com resolves to two IP numbers: 2401:2500:101:7:153:120:144:241 and 153.120.144.241.