As always spammers find a way of spamming your blog by commenting with lots of irrelavent and unwanted stuff. How do you deal with these kind of comment spamming. If you are on wordpress like me you might have installed Akismit, but inspite of installing such a powerful spam filtering system spammers are trying to find a way to break in.
I thought I will use a captcha which will reduce and stop automatic commenting tools to work I came across a wonderful tool called recaptcha. When I was going through Jerry West blog of seo revolution I came across this wonderful captcha system and this works perfectly.
Captcha is a technology where it can determine whether the visitor who is commenting on our blog is a real human or a bot. These bots have ability to do thousands of posts with in a short time. Some time if we neglect these comments we will drop our search rankings too rapidly. Captcha gives the human a challenge of typing a word and decides if the comment is done by a human or not. Bots don’t have ability to read graphical interface and they cannot crack these digital captcha systems.
You can see the demo on my blog now and this technology is being used by google and the good part of this is it’s owned by google. It’s easy to setup, manage and I recommend this for any blog owner. You can find recaptcha here.