DNSBL Spam Check

Checked IP: 2a01:7c8:aab8:64f::1
rDNS/PTR record: server4.on24.nl

Not Listed: 25 checks
Check Response time
Found rDNS/PTR: server4.on24.nl
528.2831 ms
Inactive: 2
Inactive
Response in: 8.0930688 seconds
Amount of searched blacklists: 25 (2 inactive)