DNSBL Spam Check

Checked IP: 51.81.0.87
rDNS/PTR record: ip87.ip-51-81-0.us

Not Listed: 25 checks
Check Response time
Found rDNS/PTR: ip87.ip-51-81-0.us
414.5141 ms
Inactive: 2
Inactive
Response in: 5.088367 seconds
Amount of searched blacklists: 25 (2 inactive)