DNSBL Spam Check

Checked IP: 2a00:4b40:aaaa:2101:45:13:137:104
rDNS/PTR record: mx20.websupport.cz

Not Listed: 25 checks
Check Response time
Found rDNS/PTR: mx20.websupport.cz
526.8741 ms
Inactive: 2
Inactive
Response in: 2.728472 seconds
Amount of searched blacklists: 25 (2 inactive)