Plugin to automatically limit the number and / or frequency of requests to the site for Wordpress?

Question

WordPress

Suggest a plugin to automatically limit the number and / or frequency of requests to the site for Wordpress

Answer 1

It is http requests, or in the admin panel?

Answer 2

The author did not indicate the AXIS and software
if the site is on nginx, then limit_req seems to be closed
if a separate address is closed by a firewall and everything
can still be looked at fail2ban, but this is from the Unix world