Monitoring
SSL certificate expired? What it means and how to fix it
When an SSL certificate expires, browsers show a full page warning and most visitors leave. Here is what happens, how to fix it in the right order, and how to make sure it never surprises you again.
An expired SSL certificate means the certificate that proves your site's identity has passed its end date, so browsers no longer trust the connection. Visitors see a full page warning instead of your site, and most of them leave. The fix is to renew the certificate, install it with its full chain on every server that serves the site, and then set up renewal and expiry alerts so it can't happen again.
If your SSL certificate expired, this guide covers what visitors and search engines see, the fastest way to fix it, and why expiries are becoming more common.
What happens when an SSL certificate expires?
When a certificate expires, browsers block the page with a warning such as "Your connection is not private" or "Warning: Potential Security Risk Ahead". Visitors can sometimes click through, but few do. At the same time:
- Forms and checkouts stop working for visitors who don't click through.
- APIs and apps that call your site fail, because most clients refuse expired certificates outright.
- Email links and ads land on a warning page, wasting the clicks you paid for.
- Search engines may have trouble crawling