Where to get ssl certificates without risk and what to look for?

Question

Digital certificates

The site is hosted on nic.ru. Last year, the shares were given a free annual certificate. Now the deadline is coming, and you can only buy a new one, and for as much as 3600 rubles, which is somehow expensive. I dug around let`s encrypt - with the help of a third-party service, the generated keys are not installed, but in any case, they are for 90 days in total and I don’t want to do this once every three months.
The question is where to get the simplest inexpensive certificate. On the site, this is only necessary for two things - so that the browser does not write that it is unsafe and search engines. There is not even a personal account on the site itself and is not planned.

Answer 1

Or LE - it was actually invented for this or bought once a year. 3600 is a reasonable price for a Thawte123 type certificate.