Observed arrival · 2026-10-28
HandleProbe checks one username across 837 sites
A free, no-sign-up tool that checks whether a username appears to have accounts across social networks, code hosts, forums, games, and other sites.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People checking a handle across social and community sites
- Worth noticing
- It compares about 30 signals against what a site shows for a username that cannot exist.
Field notes
The results map assigns each site a status as its response arrives, including an Unconfirmed category rather than forcing every result into a match or non-match. HandleProbe says it keeps a search in memory for ten minutes to resume after a dropped connection, then deletes it. Its own caveat is important: a matching handle does not establish who owns the account, and different people may share a username.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue