reCAPTCHA for comment spam prevention

One of the most popular and very effective methods to combat spam is to use some form of captcha protection. But, captchas can lead to poor user experience. reCAPTCHA by Google is a quite different captcha trying to minimize user interaction.

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Comment spam: how does it work?

Any WordPress website that allows comments or implements forum (bbPress or something else) attracts comment spam. If you ever wondered how comment spam finds your website, this is a good place to start.

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