plusone-inc.co - robtex.com
plusone-inc.co
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.180.42🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2632.sakura.ne.jp | ||||||
| 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 | plusone-inc.co ⭐ | ||||||
| A | 49.212.180.42🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2632.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www2632.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2015-09-18 #19 | ||||||
co
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns0.centralnic.net ⭐ | ||||||
| NS | a.registrydns.co | ||||||
| NS | b.registrydns.co | ||||||
| NS | c.registrydns.co | ||||||
| NS | d.registrydns.co | ||||||
| SOA | ns0.centralnic.nethostmaster@centralnic.net serial=1759735194 | ||||||
MX for
plusone-inc.co |
Same first word
plusone-inc.co.jp |
plusone-inc.co |
plusone-inc.com |
Similar names
DNS History
5 records (5 active, 0 former)
●MXplusone-inc.co2026-04-03 → 2026-08-17 · 2 obs
● 2026-08-17 07:37:02
●A49.212.180.422026-04-03 → 2026-08-17 · 2 obs
● 2026-08-17 07:37:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| co | a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co | - |
| plusone-inc.co | 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 plusone-inc.co (unsigned zone)
⏱️ Timing
Total: 1147ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.180.42 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | plusone-inc.co (pri: 10) |
| TXT | 1 | v=spf1 a:www2632.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Mail Server Role
plusone-inc.co handles its own mail, functioning as its own mail server.
IP Addresses
plusone-inc.co resolves to just one IP address, 49.212.180.42.
Two other host names, along with go-en.biz, lsh.cc and nakasuji-ns.ed.jp, also share IP numbers with plusone-inc.co.
Name Servers
plusone-inc.co is served by three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
plusone-inc.co has at least partial name server overlap with other domains, such as conf.co.jp, impress-tokyo.com, withco.jp and two others.
master.dns.ne.jp has IP address 210.224.172.18, ns1.dns.ne.jp has IP address 61.211.236.1 and ns2.dns.ne.jp has IP address 133.167.21.1 — one address each.
Mail Servers
plusone-inc.co is served by just one mail server: plusone-inc.co.
plusone-inc.co resolves to 49.212.180.42 and no other IP number.