IP Reputation
Two scores for any IPv4 address (how likely it is to be malicious, and how new it is to us) to help you decide whether to block, watch or ignore it.
IPv4 only. Scores are recomputed daily across the addresses we observe in the wild.
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Why two numbers
b-score
How confident we are that the address is malicious, based on its reports over time. High and steady is the shape of something worth blocking.
n-score
How new the address is to us: a different question from how dangerous it is. Something barely seen may be nothing, or the leading edge of the next campaign.
One axis cannot carry both. An address can be new and harmless, old and hostile, or new and already reported, and the three call for different actions.