If you want to protect your website with an SSL/TLS certificate, you must have a domain name associated with your website. You can then get an SSL/TLS certificate for that domain name.
Here are the steps you can follow to get an SSL/TLS certificate for your domain name:
Choose a Certificate Authority (CA): There are many trusted CAs that offer SSL/TLS certificates.
Generate a Certificate Signing Request (CSR): You need to generate a CSR on your web server, which contains information about your domain name and server. You can do this through your web hosting control panel or by using a command line tool like OpenSSL.
Submit your CSR to the CA – Once you have generated the CSR, you must submit it to the CA of your choice. The CA will then verify your domain name and server information and issue the SSL/TLS certificate.
Install the SSL/TLS certificate on your web server – Once you receive the SSL/TLS certificate from the CA, you need to install it on your web server. The process for doing this varies depending on the web server you are using.
After installing the SSL/TLS certificate, you should be able to access your website securely using the domain name associated with the certificate.