This is a free and easy one, but maybe not so obvious for the average blogger. Many bloggers think that you have to pay for a web service to get rid of them, but that’s not true.
The idea is to add a CAPTCHA to your blog to prevent SPAM-bots from posting bad entries. A captcha is a small test to make sure that the writer is human, not a computer. It is usually an image with squiggly letters that you have to look at and fill into a box.
To add it to your blog,
- go to Plugins > Add new.
- Search for “si captcha”.
- Install and activate it.
You are basically done here. Bye bye SPAM! If you want to change the captcha settings, go to Plugins > SI Captcha Options.
There are many other Captcha plugins out there, this is just one that I’ve tested and approved.