CC2ASN vs Zeek Analysis Tools (ZAT): Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
CC2ASN is a free threat hunting tool. Zeek Analysis Tools (ZAT) is a free threat hunting tool. Compare features, ratings, integrations, and community reviews side by side to find the best threat hunting fit for your security stack.
CST VerdictBased on our analysis of available product data, here is our conclusion:
Threat hunters and incident responders who need fast AS-number geolocation mapping will find CC2ASN useful for pivot analysis during investigations. It's free, requires no authentication, and returns results in under a second, which matters when you're chasing a suspicious IP through 50 prefixes. Skip this if you need automation integration or BGP anomaly detection; CC2ASN is a lookup tool, not a monitoring platform.
Incident response teams already collecting Zeek network logs will extract real value from ZAT's Python-native ML pipeline; you get forensic analysis speed without building custom pandas and scikit-learn workflows from scratch. The 451 GitHub stars and active maintenance signal a tool that teams actually use post-breach, not one gathering dust. Skip this if you need a point-and-click UI or support for non-Zeek data sources; ZAT demands Python fluency and assumes your team is comfortable operationalizing machine learning models in incident workflows.
