Keybase Username Search
socialPublic profile detection specification and footprint signals
Profile URL Pattern
https://keybase.io/_/api/1.0/user/lookup.json?usernames={account}The target username is substituted for the {account} parameter during automated public HTTP evaluation.
Detection Logic & Fingerprint
Checks Keybase public profile URLs by verifying HTTP response status and unique platform profile indicators.
Confidence Tier:high
False Positives & Limitations
False positives can occur if the platform shows a generic landing page or CAPTCHA challenge instead of a proper 404 status.
Manual Verification Instructions
Always visit the live URL manually on Keybase to inspect profile activity and bio markers before drawing conclusions.
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