Let's Encrypt - an automated certification authority providing free SSL certificates for websites. The goal of this project is to improve the level of security of sites everywhere, since the HTTPS protocol allows the transfer of data from the client to the server in an encrypted form, which makes it impossible to get this data to third parties.
The certificate is issued completely automatically, but requires some basic knowledge of server administration. On our hosting installing a certificate even simpler and does not require additional knowledge, you just need to submit a request for installation. For new sites, the certificate is installed automatically for some time after their creation, if all conditions to get it.
In the process of installing the certificate, Let's Encrypt verifies and validates the domain name and site by sending a series of requests or using DNS-records. The process of issuing / revoking certificates is described in more detail at official website.
Let's encrypt certificates have a number of differences from paid certificates:
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Conditions for obtaining a certificate for a domain or subdomain:
If the site has aliasesto be included in the certificate, the same conditions must be met for them.
Conditions for receiving wildcardcertificate:
If the task is to obtain a wildcard certificate, before applying for installation, enable processing requests to non-existent subdomains.
To apply for the installation of a certificate, do the following: