gw.opencourse.com - robtex.com
gw.opencourse.com
| DNSSEC | ⚠️ Not signed | ||||||
opencourse.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.206.180.119🇺🇸 AS209216.206.0.0/15 | ||||||
| NS | dns1.p02.nsone.net ⭐ | ||||||
| NS | dns1.p01.nsone.net | ||||||
| NS | dns2.p01.nsone.net | ||||||
| NS | dns3.p01.nsone.net | ||||||
| NS | dns4.p01.nsone.net | ||||||
| NS | ns05.sportsdns.net | ||||||
| NS | ns06.sportsdns.net | ||||||
| NS | ns07.sportsdns.net | ||||||
| NS | ns08.sportsdns.net | ||||||
| MX | mxa-000e8b01.gslb.pphosted.com ⭐ | ||||||
| MX | mxb-000e8b01.gslb.pphosted.com ⭐ | ||||||
| TXT | v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all | ||||||
| SOA | dns1.p02.nsone.nethostmaster@nsone.net serial=1657769253 | ||||||
PTR for
Same first word
Similar names
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| opencourse.com | dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net... | - |
✅ Authoritative Response
Server:45.54.72.129
NS records: dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net, ns05.sportsdns.net, ns06.sportsdns.net, ns07.sportsdns.net, ns08.sportsdns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for opencourse.com (unsigned zone)
⏱️ Timing
Total: 192ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|