Check whether an IP address or network is malicious and report abusive IPs to isIPsafe.
Free
One server, in security & testing. Check whether an IP address or network is malicious and report abusive IPs to isIPsafe.
Security & Testing
Check whether an IP address or network is malicious and report abusive IPs to isIPsafe.
The rest either hold an API key issued by the publisher or ask for nothing.
Listed without a verification tick. Read the listing before installing.