I have Math Captcha set up. It reduced SPAM quite a bit but lately SPAM comments have been getting through. I have checked all settings but there is nothing which I think will stop this. Any suggestions?
Hi Greg and sorry for late reply – we’re just crazy busy recently.
Generally stopping spam is a complex issue and there are many possible reasons your spam is getting through. But first let’s focus on Math Captcha – one of our users say a simple setup is the most effective one: he suggests addition only with numbers and words. Please try that.
If it doesn’t stop all the spam try to combine MC with another plugin – Antispam Bee for example. Both should work smoothly.
If you still experience spam I’d suggest a general code review of all your theme files and plugins. Why? Because there might be security holes or code errors that arise from bad coding practices and make your site vulnerable to spambots.
Hi Bartosz, thanks for the response. Ok I originally tried addition and subtraction with numbers, then switched to words and then switched to multiplication and division with words and shortened Catchpa time to 120. I will switch to numbers and words and addition only and come back with the results. The SPAM is usually associated with a URL. I have ‘Block Direct Comments’ selected as ‘YES’ also.