IP & Domain Blocklist

Blocklists are a foundational layer of network security. While advanced threat detection systems look for suspicious behavior, blocklists provide immediate protection by preventing communication with known malicious infrastructure. A well-maintained blocklist stops threats before they can execute - malware can't download if the distribution server is blocked, phishing pages can't steal credentials if the domain is blocked, and C2 communication can't occur if the botnet server is blocked. The key is freshness. Cyber criminals constantly rotate infrastructure. A blocklist that updates weekly may miss 80% of active threats. Our real-time updates ensure you're protected against the latest threats, not just historical ones.

False positives are the enemy of security tools. Block a legitimate site and users lose trust in the protection. Allow a malicious site and you've failed at your primary job. Finding the right balance is crucial. Our blocklist aggregates data from configured intelligence sources. When multiple independent sources identify an entity as malicious, we have high confidence in the classification. Single-source reports are flagged for additional verification before inclusion. This multi-source validation approach achieves a false positive rate below 0.01% while maintaining multi-source coverage. You can trust our blocklist to block threats without interfering with legitimate business operations.

Effective security requires multiple layers of protection. Blocklists can be deployed at various points in your infrastructure: • Perimeter Firewall: Block malicious IPs at the network edge before they can reach internal systems • DNS Layer: Prevent resolution of malicious domains, stopping threats before TCP connections are established • Web Proxy: Filter URLs in HTTP/HTTPS traffic to block access to phishing and malware sites • Email Gateway: Block links and attachments from known malicious infrastructure • Endpoint: Local blocklists provide protection even when devices are off-network Each layer adds protection and creates multiple opportunities to stop threats. Our blocklist data can be deployed across all these layers through our flexible API and data export formats.

Not all threats are equal, and different organizations have different risk profiles. Our categorized blocklists let you customize protection: • Malware Distribution: Essential for all organizations - blocks servers hosting malicious payloads • Phishing: Critical for organizations with user-facing services or email traffic • Command & Control (C2): Important for detecting and preventing active compromises • Cryptomining: Reduces unauthorized resource consumption and electricity costs • Tracking: Privacy-focused organizations can block surveillance infrastructure • Spam: Reduces unwanted email and network traffic Choose all categories for layered controls, or select specific categories to match your security priorities and reduce noise.