Data verified May 2026
ADYour product here. Reach security decision-makers.Launch a campaignJA3 Description
JA3 is a method for creating SSL/TLS client fingerprints that can be easily shared for threat intelligence. It was invented at Salesforce in 2017 but is now maintained by John Althouse at FoxIO-LLC. The project includes JA3 and JA3S scripts for Zeek and Python, with support added to various cybersecurity tools and platforms.
JA3 FAQ
Common questions about JA3 including features, pricing, alternatives, and user reviews.
JA3 is A method for profiling SSL/TLS Clients with easy-to-produce client fingerprints. It is a Threat Management solution designed to help security teams with TLS, SSL, Cyber Threat Intelligence.
JA3 is a free Threat Management tool. This makes it accessible for organizations of all sizes, from startups to enterprises. Visit https://github.com/salesforce/ja3/ for download and installation instructions.
Popular alternatives to JA3 include:
1.Webz.io - Web data platform providing open, deep & dark web APIs and monitoring. (Commercial)
2.Hudson Rock Cybercrime Intelligence Tools - Cybercrime intelligence tools for searching compromised credentials from infostealers (Free)
3.Lunar - Free breach monitoring platform for compromised credential detection & alerting. (Free)
4.CybersecRadars - Cybersecurity market intelligence platform for tracking competitors & funding (Commercial)
5.Hunt.io - Threat hunting platform for tracking malicious infrastructure, C2s, and IOCs. (Commercial)
Compare all JA3 alternatives at https://cybersectools.com/alternatives/ja3
JA3 is for security teams and organizations that need TLS, SSL, Cyber Threat Intelligence. It's particularly suitable for small to medium-sized teams looking for cost-effective solutions. Other Threat Management tools can be found at https://cybersectools.com/categories/threat-management
Have more questions? Browse our categories or search for specific tools.
