In order to have your website with HTTPS, you will need to install an SSL Certificate on your website. You can purchase an SSL Certificate from the following URL:
→ Want to know about the difference between SSL and TLS? Please refer to SSL/TLS for more details.
→ Looking to install SSL Certificate on your website in IIS? Please refer to SSL on IIS for more details.
→ Looking to install SSL Certificate on cPanel/WHM? Please refer to install SSL on cPanel for more details.