Username availability checker
Checks whether a handle appears available to register on a predefined list of services. It does not establish who owns existing pages.
Find public pages that reuse a handle. Compare the visible evidence before treating accounts as one identity.
WhoSearch shows which public details agree and which are still missing, so you can review the source trail yourself.
MethodologyPublic pages that match the query
Which clues appear on each page
Which clues remain unconfirmed
A direct link to every original source
WhoSearch searches the public web in real time instead of claiming a fixed platform count. Coverage changes with what search engines can currently reach.
Up to 8 public-page candidates in the free preview
One live retrieval pass for the free preview
6 source categories, classified after retrieval
Source categories
A username search can answer a different question from a registration checker. Choose the tool based on the evidence you need.
Checks whether a handle appears available to register on a predefined list of services. It does not establish who owns existing pages.
Finds indexed public pages, opens the original sources, and shows which context supports—or fails to support—a connection between accounts.
The handle @northbridge_alex is fictional. The matrix shows why a repeated handle alone cannot establish identity.
Usernames can be reused, copied, reassigned, or shared by unrelated people. Confirm at least one additional public anchor—such as a linked site, organization, location, biography detail, or consistent body of work—before connecting accounts.
| Public source | Handle | Location | Topic |
|---|---|---|---|
| Professional profile | Matches | Matches | Matches |
| Community account | Matches | Unknown | Matches |
| Old directory page | Matches | Unknown | Unknown |
Use a practical evidence checklist before treating matching handles as the same person.
Use old usernames, email history, saved logins, and public sources to build an account inventory.
See how sources, missing clues, and uncertainty appear without exposing a real person's data.
Run one live retrieval pass, open the original pages, and review the visible evidence before deciding what belongs together.
Public web coverage can be incomplete or outdated. Confirm important decisions through primary sources and appropriate regulated services.