SSL Certificates & TLS

Changing a multi-domain certificate requires a planned reissue and deployment. Adding a...

A wildcard such as *.example.com covers a single leftmost label, such as shop.example.com....

A TLS certificate, often sold as an SSL certificate, helps browsers establish an encrypted...

File-based certificate validation requires the issuer's challenge to be publicly available at...

DNS certificate validation proves control by publishing the certificate authority's exact...

Email domain validation works when an authorised person receives and approves the certificate...

For a certificate ordered outside an automated Plesk workflow, generate a CSR in the domain's...

Mixed content occurs when an HTTPS page requests resources over insecure HTTP. Fix the resource...

A hostname mismatch means the certificate presented by the server does not cover the name the...

An incomplete certificate chain means a client cannot build the required trust path from the...

Install the issued certificate in the cPanel account serving the website, using its matching...

Use the supported Plesk upload path for your certificate files, then confirm that the website...

A mail certificate warning concerns the server your application is connecting to. Compare that...

Track edge and origin certificates separately when a CDN or security proxy handles HTTPS. The...

Enable HSTS only after the required website names work reliably over HTTPS and certificate...

Use an HTTPS redirect after the website has a valid certificate and works correctly over HTTPS....

Renewal requires a valid certificate to be issued and installed before the current one expires....

A certificate cannot be installed with an unrelated private key. If the matching key is...

Report a compromised certificate private key promptly and arrange revocation through the issuer...

A CAA failure can mean that your DNS policy does not authorise the requested certificate...