cu-sr.com - robtex.com
cu-sr.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 59.106.19.147🇯🇵 SAKURA-B59.106.0.0/17 (7-0/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | www697.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 | cu-sr.com ⭐ | ||||||
| A | 59.106.19.147🇯🇵 SAKURA-B59.106.0.0/17 (7-0/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | www697.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www697.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2014-07-22 #14 | ||||||
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=1774620597 | ||||||
MX for
cu-sr.com |
Subdomains
mail.cu-sr.com |
Same first word
cu-sr.com |
Similar names
DNS History
5 records (5 active, 0 former)
●MXcu-sr.com2015-08-15 → 2026-03-27 · 2 obs
● 2026-03-27 14:13:44
●A59.106.19.1472015-08-15 → 2026-03-27 · 2 obs
● 2026-03-27 14:13:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net... | - |
| cu-sr.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 cu-sr.com (unsigned zone)
⏱️ Timing
Total: 576ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 59.106.19.147 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | cu-sr.com (pri: 10) |
| TXT | 1 | v=spf1 a:www697.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Hierarchy
The parent of mail.cu-sr.com is cu-sr.com.
Mail Server Role
The mail server for cu-sr.com is cu-sr.com.
IP Addresses
cu-sr.com points to a single IP address: 59.106.19.147.
Other host names such as kt70.com, ibik.co, igosyougi.sakura.ne.jp, crossco.co.jp and junzo.sakura.ne.jp share IPs with cu-sr.com.
Name Servers
cu-sr.com is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
cu-sr.com at least partially shares name servers with other domains, for example mitsuzumi-shobo.com, t-brighten.com, xorg.jp, k-forum.info and o-kasi.com.
these name servers are commonly used alongside dns.sakura.ad.jp name servers.
Host names with a single IP address:
master.dns.ne.jp resolves to 210.224.172.18.
ns1.dns.ne.jp resolves to 61.211.236.1.
ns2.dns.ne.jp resolves to 133.167.21.1.
Mail Servers
One mail server handles cu-sr.com; that server is cu-sr.com.
cu-sr.com points to a single IP number: 59.106.19.147.