IP Abuse & Reputation Checker
See how risky an address looks: four reputation scores, five blocklists and 28 mail blocklists in one place. Leave the field empty to check your own IP.
What you get
An overall risk from 0 to 100, four reputation scores (Synthient, IP-DB, proxycheck.io, IPFastCheck), five blocklists (IPsum, NEBLink, FireHOL) and 28 DNS blocklists such as Spamhaus and SpamCop. Tap the ? next to any source to see what it measures.
Why sources disagree
Each service watches different traffic. A datacenter address can look clean to one and risky to another, so every result is shown separately and a single low score does not prove a clean reputation.
How the overall risk is calculated
It starts from the average of the reputation scores that answered and adds 8 points for every local blocklist that contains the address (25 at most), 4 for every mail blocklist (10 at most) and 20 for a Tor exit. Below 30 is low, 30–59 medium and 60 or more high. Services that did not answer are left out rather than counted as clean.
Frequently asked questions
What counts as a good score?
Below 30 is low risk, 30–59 medium, 60 and above high. The overall risk blends all sources that answered.
How often are the blocklists updated?
We download them again every 24 hours and check them locally, so the lookup is instant.
Why is a source marked unavailable?
Some services limit or refuse automated requests. When that happens the card says so and the source is left out of the overall risk.
Do you store the addresses I check?
No. Nothing about the checked address is saved.