Asked the host.-provider: is it possible to replace the Protocol of the website from http to https?
Got the answer: you will Need an SSL certificate, we can offer Comodo PositiveSSL 2100rub./year, the protection of the same domain, including www.
However, I would have arranged a free option, for example Let's Encrypt. The hosting provider, apparently completely alone can not do it, this says: If you send the certificate and key Let's Encrypt will do.
In the end, be like? Where to get what he requires to solve the task: moving to https