A website hosted on a Plesk server is not accessible via HTTPS:
Server not found
Could not locate remote server
This page can’t be displayed
This site can’t be reached
Web Server's Default Page may be shown instead of the site's content.
- The Let's Encrypt certificate can not be issued for the domain in Domains > example.com > SSL/TLS Certificates with the following error:
Could not issue an SSL/TLS certificate for example.com Details Could not issue a Let's Encrypt SSL/TLS certificate for example.com Details No domains have passed validation
The website works properly over HTTP or redirects to HTTPS:
# curl -I http://example.com/ -v
* About to connect() to www.example.com port 80 (0)
* Trying 203.0.113.2... connected
< Location: https://example.com/
SSL/TLS support option is disabled for the domain but a redirection to HTTPS might have been enabled in the website configuration/code.
Go to Domains > example.com > Hosting Settings and enable the option SSL/TLS support: