Device-specific

    Your connection is not private on Chrome

    Why it happens on Chrome

    Chrome caches HSTS state per domain, so once a site has failed it keeps refusing even after the certificate is fixed.

    The fix on Chrome

    Go to chrome://net-internals/#hsts, enter the domain under 'Delete domain security policies', then hard-reload. Never use the 'thisisunsafe' bypass on a site where you enter a password.

    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

    Chrome 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
    WordPress
    Windows
    Mac
    Android

    Monitor this continuously with LemWatch

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    Last verified: by the Lemwatch research team.