DNSBL Spam Check

Checked IP: 75.99.78.56
rDNS/PTR record: ool-4b634e38.static.optonline.net

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: ool-4b634e38.static.optonline.net
100.5170 ms
Inactive: 2
Inactive
Response in: 1.8914039 seconds
Amount of searched blacklists: 26 (2 inactive)