Comment spam is something every blogger has to endure on a daily basis. The default antispam plugin – Akismet, does a decent job of filtering, but it’s known to get it wrong. And to manually dig out the legitimate comments from hundreds of spam comments is no mean task. Recently, I reviewed two better alternatives to Akismet. However, even with Defensio and Typepad Antispam the aforementioned problems remain. As a result most bloggers are forced to implement multiple antispam techniques. The most popular ones being –
Challenge-response tests : These tests attempt to distinguish a human from a bot by analyzing their response to a server generated question. The most popular implementation is captcha, which asks the user to retype a sequence of letters displayed in an image. While this may help you in reducing the number of spam comments, it will also aggravate your readers and discourage them from commenting. Due to this more bloggers are switching to less annoying challenge-response tests like Challenge
Even with these newer plugins the main problem remains – the commenter is made to put in extra effort. Not only that, a significantly large number of spam comments manage to get through these challenge-response tests.
IP Address based filtering : While this doesn’t require any action on the commenter’s behalf, its not very accurate either. And no ones knows that better than me, since almost all ip address based blacklists have Dataone’s (India’s largest ISP) ip addresses on their blacklist.
After trying multiple plugins and multiple approaches, I have finally found a spam blocker that works. It’s Wp-Spamfree. Before using Wp-Spamfree I used to get more hundred spam comments (often in excess of two hundred). Now, on an average I get zero spam comment every day!!
So, how does Wp-Spamfree work? In the plugin developer’s own words :
One potential cause for worry is that users with js disabled wont be able to comment. But, such users form a very very small minority.
Also this plugin has compatibility issues with some plugins that interfere with the comment system. So after installing the plugin don’t forget to check out if a guest can still comment. If you experience any problems, contact the developer (Scott Allen) who provides support for free.
Wp-Spamfree is the best antispam plugin I have come across. Give it a try and you may just be tempted to ditch all other antispam plugins.