Check the reputation of an IP address, domain name or URL against a comprehensive list of blacklists and blocklists.
We currently check more than 150 blacklists.
The blacklists we connect to are most commonly known as either a DNSBL
(Domain Name System Blackhole List) or a RBL (Real-time Blackhole List).
This API can take up to 10 seconds to run depending on the current response times of the active DNSBLs.
Most blacklists we check are geared towards blocking hosts involved with sending email spam, some are more specialized lists.
If you are also interested in detecting IP addresses involved in other forms of cybercrime check out the IP blocklist API.