Which certificate can be chosen instead of SSL?

Question

Digital certificates

Is an SSL certificate required for a secure connection if there is no database on the site and in general any information transmitted to the server?

Answer 1

Search engines rank websites with https in search results higher. You can install free SSL from Let's Encrypt if your site is not related to commercial activities. Here is a good settings generator https:
//www.digitalocean.com/community/tools/nginx
...

Answer 2

Optional, but all sorts of opposos and other greedy people like to mix ads into such traffic.

Which certificate can be chosen instead of SSL?

the word "certificate" implies that there will be SSL, so no "instead of"

Answer 3

No, if you are not afraid to see ads on your site for diapers, sauerkraut and enlargement products ... yes, yes, him, darling!
Now there is a general transition to https, and for anyone whose site is not yet encrypted, various cunning comrades rush like a hungry dog...

Answer 4

Not required. By setting even the simplest SSL, you increase confidence in your resource, both from those who enter it (they do not receive a warning from the browser), and from search sites.
After all, the basic version is not so expensive, some hosts offer it cheaper. Although in my case, it costs 40% more than paying for hosting for a year.