Opsis resources
Better searches start here.
Practical OSINT guides, focused lookup tools, and a clearer way to read your results. Start with what you know. Check what you find.
Explore
Free tools
Look at individual GitHub, Reddit and Instagram profiles. See what each tool offers before you run a lookup.
Learn
OSINT guides
Follow an evidence-first workflow, from a username or email address to relevant public sources and carefully checked leads.
Understand
How we check results
Know the difference between a profile, an account-existence signal, and an inconclusive check.
Featured guide · Email OSINT
Reverse email lookup: a practical guide
An email address can lead to public references or associated accounts. Learn what those matches tell you, where to cross-check them, and when a result is not enough.
Read the guide →- 01 / Start with an exact address
- 02 / Separate direct evidence from guesses
- 03 / Check the source before drawing a conclusion
Start with your identifier
Username research
Username OSINT guide
Find public profiles, follow explicit links and check whether accounts are actually connected.
Email research
Email OSINT guide
Research addresses, domain context and message headers while keeping different kinds of evidence separate.
Account discovery
Reverse email lookup: a practical guide
Find public references and associated account signals from an exact email address.
One platform at a time
Explore the lookup tools
Developer profiles
GitHub lookup
Explore public profiles, repositories, commit metadata and activity.
Community activity
Reddit lookup
Review public profile details, karma, communities and activity.
Social profiles
Instagram lookup
Check a profile and review the details the service makes available.