6 Best Anti-spam plugins for WordPress blogs

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Spamming has been one of the worst ways for people to try promoting their stuff, and which is a big trouble for the bloggers always. They always have to moderate the comments they receive on the posts, just to make sure that no spam is posted on the blogs. For the wordpress blogs, the availability of several plugins makes the job easier in protecting the blogs from unnecessary spam by automatically throwing away the spam from the moderation section.

Here are a few wordpress plugins which help protect the blog from spamming

Akismet WordPress Plugin

Akismet – Visit Plugin Page
This is one of the most used plugin, which comes as a default installed one which just needs an activation through the API Key. Akismet checks every comment and sends the comment to the spam box if it is suspicious or has been already marked as spam by any other blog owners in their blogs. There is a free and paid option available, depending on the need, like personal blogs can use the API key and Akismet services for free but businesses and commercial sites can pay to get more out of it.

Wordpress Hashcash Plugin

WP-Hashcash – Visit Plugin Page
This is an anti-spam plugin that works on eradication of spam and sending the spam to the Akismet section when the visitor fails to submit a proof that they opened the blog through a browser. If they passed it, then the comment is sent into moderation, or else the comment is regarded as spam or one sent by a robot or automated system. It also helps in preventing trackback or pingback spam.

bcSpamBlock – Visit Plugin Page
This is another plugin similar to Hashcash where it tries to ensure that the client that has reached the page is a human and not a bot. A specific code is sent into the javascript and if the users don’t have the javascript enabled, they need to just copy and paste the code into the textbox to confirm. For preventing the trackback and pingback spam, the plugin ensures that the the trackback responds correctly to the referrer website.

Bad Behavior WordPress Plugin

Bad Behavior – Visit Plugin Page
This plugin not just prevents spammers from posting their spams on the blogs, but also sometimes prevents them from even visiting your blog. This not just helps you keep away from spammers, but also the site’s load is always fast and the logs are clear. It can be used along with the other spam protection services to ensure maximum safety of the blog.

AVH First Defence WordPress Plugin

AVH First Defense Against Spam – Visit Plugin Page
The AVH First Defense Against Spam plugin gives you the ability to block spammers before any content is served. This is supported by Project Honey Pot, which is a local blacklist. The visitors that are trying to post comments are checked at stopforumspam.com and this checking is done only after the content is served. The spammers can be blocked based on the information supplied by a third party or by using the local blacklist of IP addresses.

Defensio Anti Spam WordPress Plugin

Defensio Anti-Spam – Visit Plugin Page
Defensio is an advanced spam filtering web service that learns and adapts to your behaviors and those of your users. Apart from the spam filtering, the plugin also helps in detecting malicious content, URL categorization, script detection etc. The usage of Defensio would need you to deactivate all other plugins that work in preventing spam in wordpress blogs.