Substack
Social & IdentityREST API
Interactive Reconnaissance
Scan any handle on Substack & 650+ Platforms
Enter a handle to query Substack and probe 650+ public ecosystems simultaneously with sub-second live streaming.
Try sample targets:
Reconnaissance Specifications
Handle Pattern & Endpoint
UserScope checks account registration on Substack by passively querying the official public structure:
https://substack.com/@{username}
Zero Query Logging & Privacy
All searches against Substack are performed using passive unauthenticated requests. No search query logs, handles, or IP histories are recorded.
100% Client-Side Privacy Guaranteed