btcblack.it
Public real-time DNS blocklists for spam, phishing and fraud, queried by email filters and security systems
Highlights
- New on EvolcAdded 2026-10-27
About btcblack.it
BTC Black (Blocklist Threat Clearinghouse) publishes a set of public, real-time DNS blacklists (DNSBL) that list threats from multiple sources. Current lists cover Bitcoin wallet addresses linked to fraud and ransomware, hashed ESP account identifiers, hashed freemail addresses used for spam or phishing, and fuzzy hashes of spam content. Each list can be queried independently via standard DNS lookups.
The lists are intended for integration into existing security systems and email filters. The site presents the service as sponsored by SNB and directs abuse reports and enquiries to info@btcblack.it.
Product: Public real-time DNS blacklists (DNSBL): Bitcoin RBL, ESP Accounts RBL, Freemail Accounts RBL and Fuzzy Hash RBL, queryable via DNS.
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