Question
How to install a Let’s Encrypt SSL certificate for a domain in Plesk?
Answer
Note: Before securing a domain with a Let’s Encrypt certificate, make sure the domain name is resolved to a public IP address of the Plesk server from the Internet. If in doubt, check the domain name availability using DNS Lookup by MxToolBox.
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Go to Domains > example.com > Hosting Settings
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Make sure the checkbox SSL/TLS support is enabled:
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Go to Domains > example.com and click SSL/TLS Certificates:
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At the bottom of the page, click Install in the section More options > Install a free basic certificate provided by Let’s Encrypt:
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Select the desired options for the certificate to be issued. We recommend enabling the checkboxes:
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Secure the domain name
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Include a “www” subdomain for the domain and each selected alias
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Secure webmail on this domain
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Assign the certificate to mail domain
Note: The specified Email address will be used to receive important notifications and warnings about the certificate sent by Let’s Encrypt.
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Click Get it free
At this stage, a SSL certificate from Let’s Encrypt is generated and automatically assigned in Plesk to secure the domain. The certificate is valid for the next 90 days and will be auto-renewed by the Let’s Encrypt extension.
To learn more about free SSL certificates, check the following Plesk Docs pages: