Akismet is a powerful plugin for detecting spams but sometimes it puts some good comments also in spam list. You can reduce this type of activity by making your WordPress site commenters to solve a simple CAPTCHA only if Akismet thinks that their comment is spam.
This is another powerful trick of stopping all machine generated spam comments much before they hit your web server. This can be dome by using a simple WordPress plugin called Cookies for Comments, the plugin sets a cookie on a random URL and that URL is checked everytime when a comment is posted on your website. In-case if the cookie is missing, it marks the comment as spam.
All WordPress bloggers know about Akismet plugin that detects both manual and bot spammers posting comments on WordPress, also give you choice to set auto deletion of spam comments, there are its free feature; it also gives you some premium plans you can purchase from its site Akismet.Com. This article is about another plugin that also may become a good alternative of Akismet if you give it a try. We are discussing about Defensio Anti-Spam.
Earlier we discussed about Keypic’s WordPress Plugin that allows you to block spam bots in most of the WordPress forms (without using captchas) like login, register, comment and even other custom forms and plugin like Contact Form 7. Now this article. Now this tutorial is about a plugin that lets you block spam bots from WordPress comments form without using any type of CAPTCHAS, math questions, passwords etc. It kills spam-bots and leaves humans standing. It does spam blocking that stops spam-bots dead in their tracks.
There are many free and premium contact form plugins available for WordPress sites. I have been looking for a light and simple contact form plugin for my site. I searched it and found many but most of the sites that provides list of contact plugins include both premium and free plugins, its fine but steps and time increases for the people looking for only free plugins because they have to visit plugin’s site and look is it free or not. Here the list I am posting contains only free WordPress contact form plugins. Check it out and use what works best for you.