Intelligence X operates on the principle of data preservation. Unlike standard search engines that index the "live" surface web, Intelx focuses on historical and "dark" data. Using the free version is an exercise in digital archaeology; it allows users to search for selectors—such as email addresses, domains, IP addresses, or CIDRs—across a vast repository of past data breaches and historical snapshots of the web. Capabilities of the Free Tier
✅ A journalist trying to verify if a specific person’s email appears in any breach. ✅ You: A sysadmin checking if one specific employee password was leaked (but you don't need the full database). ✅ You: A student learning OSINT syntax (the filters work the same as premium). Intelx.io Free