To obtain an SSL certificate for your website, you can follow these steps: generate a Certificate Signing Request (CSR), choose a trusted Certificate Authority (CA), complete the validation process, and then the CA will issue the certificate. CAs play a crucial role in verifying the authenticity of websites. SSL certificates usually have a validity period of 1-2 years before needing renewal. You can use a single SSL certificate for multiple domains or subdomains using either a Wildcard SSL or a Multi-Domain SSL certificate. The process of installing an SSL certificate on a web server involves obtaining the certificate, configuring the server, and updating the website's URLs to use HTTPS. For more detailed information, visit:
https://www.computertechreviews.com/what-is-an-ssl-certificate/.