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How YouTube store user data when logout-ed

How does YouTube store user data like recommendations? I'm not logged in, Tried removing localStorage, cookie, cache.

Solution

  • F12 -> Application -> Storage -> Clear site data

    Make sure that the following options are checked：

    • including third-party cookies
    • Unregister service workers
    • local and session storage
    • Indexed DB
    • Web SQL
    • Cookies
    • Cache sotrage