refmc.co.jp - robtex.com
refmc.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.180.13🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2603.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 | refmc.co.jp ⭐ | ||||||
| A | 49.212.180.13🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2603.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www2603.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2017-05-26 #6 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
MX for
refmc.co.jp |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●MXrefmc.co.jp2019-12-13 → 2026-03-26 · 2 obs
● 2026-03-26 20:21:40
●A49.212.180.132019-12-13 → 2026-03-26 · 2 obs
● 2026-03-26 20:21:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| refmc.co.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 refmc.co.jp (unsigned zone)
⏱️ Timing
Total: 776ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.180.13 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | refmc.co.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www2603.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.dns.ne.jp, ns2.dns.ne.jp)
Analysis
Mail Server Role
refmc.co.jp serves as a mail server for refmc.co.jp.
IP Addresses
refmc.co.jp points to a single IP: 49.212.180.13.
Other host names, for instance pfmr.net, puchimo.com, coding-pro.info, good-line.net and uzfilms.org share IP numbers with refmc.co.jp.
Name Servers
refmc.co.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
refmc.co.jp partially shares name servers with other domains; examples include nanban-tabetai.jp, kaao.tokyo, hmw.or.jp, creo-dental.com and colorfulcontainer.com.
these name servers are commonly used with the name servers dns.sakura.ad.jp.
Host names with one IP number:
Host master.dns.ne.jp points to 210.224.172.18.
Host ns1.dns.ne.jp points to 61.211.236.1.
Host ns2.dns.ne.jp points to 133.167.21.1.
Mail Servers
refmc.co.jp is handled by a single mail server, refmc.co.jp.
refmc.co.jp points to a single IP: 49.212.180.13.