What is IP reputation?
IP reputation is a risk assessment of an IP address based on its observed behavior and associations — appearances on abuse blocklists, history as a VPN or proxy exit, datacenter ownership, and threat-intel feed listings. A poor reputation raises the risk score a fraud or security system assigns to a request.
Reputation is shaped by data: threat-intel feeds (FireHOL, CINS), abuse databases (AbuseIPDB), proxy and VPN lists, and ASN classification. Because IPs are reassigned and shared (see CGNAT), reputation is probabilistic, not absolute.
Good systems expose why an IP scored the way it did, so a human can reason about false positives instead of trusting an opaque number.
How IPLogs handles it
IPLogs combines threat-intel feeds, abuse databases, proxy/VPN lists, and ASN classification into a graded verdict and returns every contributing signal.