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9 Best Anti-Spam Plugins for WordPress 1

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As a website owner, isn’t it exhilarating to see a growth in incoming traffic? Sure it is! We all have experienced it! However, when your site begins to gain traction, spam will be one of the most unpleasant things you must tend to. The moment your website starts getting a decent amount of traffic, a host of unwelcome spammers join the party. Most of these spammers are automated spam bots.

How bad could this be, you ask?

Well, let’s see. First off, if you don’t moderate comments (i.e., if you directly publish all comments without an approval), tons of irrelevant content (spam) will fill your posts and pages. This will ultimately reduce your SEO score, all thanks to automated spam bots.

If you decide to manually moderate each and every comment, checking them for spam and authenticity, well, you’re going to need a lot of time. This technique has another disadvantage. Apart from requiring significant human effort, spam comments will keep filling your WordPress database. This weighs down your database and makes it slow.

Of course, we have a number of solutions for this problem. This article lists the best anti-spam WordPress plugins. You can choose any one of them (make sure you go through their features first) and enjoy the pleasures of hassle-free comment moderation.

We’ll begin with the simplest of WordPress plugins.

Developed by Automattic, the company behind WordPress, this is one of the most popular cloud-based and free anti-spam plugins for WordPress. Akismet employs a web service powered by cloud servers, which evaluates comments for spam. First, you need to connect to the cloud service using an API key, which can be obtained by registering for the service.
The plugin uploads all incoming comments to Akismet’s cloud servers, where highly specialized algorithms evaluate the validity of the comments. Some are caught red-handed and shifted to the spam queue. The squeaky clean ones are directly moderated and published. If Akismet gets stuck, i.e., can’t decide for good whether a particular plugin is spam or not, it moves the comment to the moderation queue.
Akismet is free for personal and noncommercial use, with a limit of 50,000 comment checks a month. The paid plans start from $5 a month, which is a pretty sweet deal for spam. It also seamlessly integrates with the Jetpack and Contact Form 7 plugins.

Anti-Spam by CleanTalk—No Captcha, No Comments & Registrations Spam
CleanTalk is a premium cloud-based antispam plugin for WordPress, which blocks spam comments, spam bot signups, and trackbacks.
The plugin is very similar to Akismet in that the incoming comments are uploaded to CleanTalk’s cloud servers where they undergo multiple validation checks. Depending on the results, the comments are then moved to the spam queue or are approved and published.
The plugin maintains advanced statistics of blocked spam comments and a spam comment log. It also supports a long list of third-party plugin compatibility, such as W3 Total Cache, Jetpack, Contact Form 7, WooCommerce, BuddyPress, bbPress, and WP-Members.
It offers a 14-day free trial, after which a commercial license costs $8/year for a single website.

WangGuard is another cloud-based anti-spam plugin with tons of amazing spam validators. As with Akismet, you need to connect to the service using an API key and the rest follows.
The basic usage of the plugin is free for up to 5,000 daily comment checks, while the premium one has varying degrees of pricing. WangGuard also offers some awesome add-ons, such as MailPoet Connector, Blacklisted Words, and others.

Anti-Spam Bee
Anti-Spam Bee is a completely free WordPress plugin for both personal and commercial uses. Unlike Akismet, Anti-Spam Bee does not require user registration. However, this plugin does not use cloud-powered spam detection algorithms. It relies on server-side techniques, such as matching it against a public spam database, validating the IP address of commenters, using regular expressions, and trusting commenters with Gravatar as nonspammers.
It also clears the WordPress database of previously stored spam every few days and hence prevents it from slowing down. Moreover, the plugin displays spam statistics and emails the moderators the daily spam blockage statistics.

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