Add throttling rule

Author: Oli0li

config/initializers/rack_attack.rb

@@ -1,6 +1,10 @@
 class Rack::Attack
   Rack::Attack.enabled = Rails.env.production?
 
+  Rack::Attack.throttle("requests by ip", limit: 5, period: 2) do |request|
+    request.ip
+  end
+
   Rack::Attack.blocklist("php-bots") do |req|
     req.ip if /\S+\.php/.match?(req.path)
   end