DNSBL Spam Check

Checked IP: 81.91.84.134
rDNS/PTR record: m105.server4u.cz

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: m105.server4u.cz
44.8871 ms
Inactive: 2
Inactive
Response in: 5.659843 seconds
Amount of searched blacklists: 26 (2 inactive)