cour89.com - robtex.com
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cour89.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 157.7.184.37🇯🇵 GMO-INTERNET | ||||||
| NS | ns1.value-domain.com ⭐ | ||||||
| A | 172.64.52.38🇺🇸 Cloudflare | ||||||
| A | 172.64.52.161🇺🇸 Cloudflare | ||||||
| NS | ns2.value-domain.com | ||||||
| A | 172.64.53.3🇺🇸 Cloudflare | ||||||
| A | 172.64.53.115🇺🇸 Cloudflare | ||||||
| NS | ns3.value-domain.com⚠️ | ||||||
| A | 172.64.52.38🇺🇸 Cloudflare | ||||||
| A | 172.64.52.161🇺🇸 Cloudflare | ||||||
| NS | ns4.value-domain.com⚠️ | ||||||
| A | 172.64.53.3🇺🇸 Cloudflare | ||||||
| A | 172.64.53.115🇺🇸 Cloudflare | ||||||
| NS | ns5.value-domain.com⚠️ | ||||||
| A | 172.64.52.38🇺🇸 Cloudflare | ||||||
| A | 172.64.52.161🇺🇸 Cloudflare | ||||||
| MX | cour89.com ⭐ | ||||||
| A | 157.7.184.37🇯🇵 GMO-INTERNET | ||||||
| TXT | v=spf1 ip4:157.7.184.37 ~all | ||||||
| SOA | ns1.value-domain.comhostmaster@cour89.com 2020-08-26 #20 | ||||||
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=1770279792 | ||||||
MX for
cour89.com |
Same first word
cour89.com |
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cour89.com | ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com... | 5 records |
✅ Authoritative Response
Server: 172.64.52.161
NS records: ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com, ns5.value-domain.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cour89.com (unsigned zone)
⏱️ Timing
Total: 459ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 157.7.184.37 |
| NS | 2 | ns2.value-domain.com, ns1.value-domain.com |
| MX | 1 | cour89.com (pri: 10) |
| TXT | 1 | v=spf1 ip4:157.7.184.37 ~all |
| SOA | 1 | ns1.value-domain.com hostmaster.cour89.c |
📌 Glue Records Collected
Total: 5
Out-of-bailiwick: 5 (ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com...)
AI analysis
For cour89.com, the mail server is cour89.com.
cour89.com resolves to one IP number: 157.7.184.37.
other host names including mx.takezawa-k.co.jp, www.diabros.jp, akabou-urban.com, correr.co.jp and s17.valueserver.jp share IP numbers with cour89.com.
cour89.com is delegated to five name servers: ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com and ns5.value-domain.com.
cour89.com at least partially shares name servers with other domains, for instance chu-gakkou.net, koyotrade.co.jp, rei-m.net, msi-japan.net and shirokumado.net.
These name servers are commonly used with ns11.value-domain.com, ns12.value-domain.com and ns13.value-domain.com.
Host names with two IP numbers:
ns1.value-domain.com points to: 172.64.52.38 and 172.64.52.161.
ns2.value-domain.com points to: 172.64.53.3 and 172.64.53.115.
ns3.value-domain.com points to: 172.64.52.38 and 172.64.52.161.
ns4.value-domain.com points to: 172.64.53.3 and 172.64.53.115.
ns5.value-domain.com points to: 172.64.52.38 and 172.64.52.161.
Names pointing to 172.64.52.38: ns1.value-domain.com, ns3.value-domain.com and ns5.value-domain.com.
Names pointing to 172.64.52.161: ns1.value-domain.com, ns3.value-domain.com and ns5.value-domain.com.
Names pointing to 172.64.53.3: ns2.value-domain.com and ns4.value-domain.com.
Names pointing to 172.64.53.115: ns2.value-domain.com and ns4.value-domain.com.
cour89.com is served by a single mail server, cour89.com.
cour89.com resolves to IP 157.7.184.37.