SSLBL - SSL Blacklist is a free threat intel feeds solution. VMRay UniqueSignal is a commercial threat intel feeds solution by VMRay. Features, integrations, deployment and the company behind each one, side by side.
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VisitA project that detects malicious SSL connections by identifying and blacklisting SSL certificates used by botnet C&C servers and identifying JA3 fingerprints to detect and block malware botnet C&C communication.
Behavior-based threat intel feed delivering malware IOCs with context
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Based on what each listing shows: deployment, company size, price and open source.
SSLBL - SSL Blacklist fits if you are a startup and you need a free product.
Common questions when comparing SSLBL - SSL Blacklist vs VMRay UniqueSignal for threat intel feeds.
SSLBL - SSL Blacklist: A project that detects malicious SSL connections by identifying and blacklisting SSL certificates used by botnet C&C servers and identifying JA3 fingerprints to detect and block malware botnet C&C communication.
VMRay UniqueSignal: Behavior-based threat intel feed delivering malware IOCs with context, built by VMRay.
The table above shows where their features, integrations, deployment and company size fit differ.
Often, yes. SSLBL - SSL Blacklist and VMRay UniqueSignal are both Threat Intel Feeds products. Key differences: SSLBL - SSL Blacklist is Free while VMRay UniqueSignal is Commercial. Use the table above to see where features, deployment and company size fit differ.
No Threat Intel Feeds shortlist yet. This is the closest one.
Updated 2026-11-01
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