Websites and web applications rely on SSL certificates to demonstrate their authenticity to end users connecting to them. 

Whether the web application is one the customer owns themselves or one that they consume as a service from a service provider if the server certificate attached to the application expires or is invalid, users will not be able to connect to them securely. It is therefore important to monitor the health of these certificates and alert when one is about to expire or is no longer valid.

With the TLS Certificate Expiry Check feature we have introduced a new column in the Results page of HTTP(S) and Page Load tests displaying the server certificate’s expiry status and we've expanded test Health options to alert when the certificate is about to expire.

When the target website's certificate is valid we will display the expiry date of the server certificate as seen below.

When the certificate is invalid (or expired) we will display an error message indicating the cause of the failure.

Health options now includes the option to alert the user when the certificate is nearing expiry to prevent site outages due to invalid certs.

If the website's certificate is within the specified threshold the Certificate Expiry column values will be colored accordingly.

To disable all certificate checks, enable the "Ignore TLS Errors" switch under Advanced Options > General Options. This will remove the "Certificate Expiry" column in the test results page.