DNSBL Spam Check

Checked IP: 172.105.155.248
rDNS/PTR record: 172-105-155-248.ip.linodeusercontent.com

Listed: 3 findings
Finding Response time
Blacklisted: usenix.org
Try to delist your IP from all.s5h.net
Follow the instrucion on this website.
100.4269 ms
Blacklisted: SORBS Aggregate zone (problems)
Try to delist your IP from problems.dnsbl.sorbs.net
Follow the instrucion on this website.
22.7349 ms
Blacklisted: SORBS Spamhost (any time)
Try to delist your IP from spam.dnsbl.sorbs.net
Follow the instrucion on this website.
492.6548 ms
Not Listed: 23 checks
Check Response time
Found rDNS/PTR: 172-105-155-248.ip.linodeusercontent.com
9.4709 ms
Inactive: 2
Inactive
Response in: 5.6882069 seconds
Amount of searched blacklists: 26 (2 inactive)