Preventing spam on Joomla

Google's recaptcha

What is recaptcha and how/will it help prevent spam ?

For answers to those questions you can look at google's page about recaptcha(https://google.com/recaptcha)

Installation

This installation guide requires joomla 3.4 (or higher).

• Go to google's recaptcha administrator page(https://www.google.com/recaptcha/admin) and register your site
  • example of public and private key (https://i.imgur.com/vGJKEXx.png)

• Navigate to the admin pannel of your joomla instalation
  • Select plugins from the extentions pane in the top menu.

• Search for recaptcha in the search box
  • Enable recaptcha by clicking on the status icon next to recaptcha

• One complete it is critical that you configure your recaptcha properly
  • Go to recaptcah's configuration page by selecting recaptcha in the abovementioned pane
  • make sure you select version 2 (default is version 1)
  • Fill in the required keys you got on google's recaptcha administrator page

• Once done joomla wil begin to require recaptcha's