As soon as an SSL certificate is installed on your website on any Web or Cloud hosting plan, HTTPS will be enabled (forced) by default, providing your visitors with a secure connection.
While enforcing HTTPS is highly recommended, you can disable it and have your website load via HTTP instead. For example, for testing purposes, or due to specific requirements.
To completely remove an SSL certificate, you can uninstall it instead.
Go to Websites → Manage. In the left sidebar, search for SSL and click on it:
Next, click on the options button ( ⋮ ) next to the domain or subdomain and select Unforce HTTPS. This will make HTTP connections available:
To revert back to HTTPS, on the same SSL management page, choose Force HTTPS:
If you prefer to set the HTTP version as default, you can set up a redirect from HTTPS to HTTP. This is recommended for SEO, as having a single URL provides better ranking results. However, keep in mind that the HTTPS version provides greater SEO benefits.
NOTE
If you are using a custom SSL certificate and it becomes invalid or expires while enforcing HTTPS, your site will become inaccessible