Device-specific

    Your connection is not private on Mac

    Why it happens on Mac

    A certificate manually marked 'Never Trust' in Keychain Access, or a leftover corporate root, overrides the normal trust decision for that domain.

    The fix on Mac

    Open Keychain Access → System Roots, search the issuer, and reset any custom trust setting back to 'Use System Defaults'.

    Is Your connection is not private happening on your domain?

    Running the check from outside your device separates a real certificate problem from a local clock or network issue in one step.

    Free, no signup. Runs from outside your network, which is the only way to tell a server fault from a local one.

    If that didn't fix it

    Mac has its own failure mode, but Your connection is not private has a wider set of causes that apply everywhere. The most common one overall is: the certificate expired (net::err_cert_date_invalid).

    All causes and fixes for Your connection is not private

    Your connection is not private on other platforms and devices

    iPhone
    Chrome
    WordPress
    Windows
    Android

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    Last verified: by the Lemwatch research team.