Comment spam is a huge problem for bloggers and the worst and most prolific is the automated spam that comes from bots. Spam attackers have increased over the period of time and attack your website by putting spammy links via comment, via login form, registration form and many different ways.
Captcha plugins are a good way to protect your WordPress site from spammers. These plugins help to stop spam attack and unwanted users on your website/blog.
Here comes our list of top 10 Captcha plugins for WordPress:
1) Captcha
This is the most popular captcha plugin with ratings of 4.6 out of 5 stars. It enables implementation of super security captcha form into the web pages. It is highly effective in protecting your website from spam. The best part of this plugin is that it needs to do just basic math actions and not wasting your precious time on annoying attempts of hard-to-read words, combination of letters etc.
Cost: Free
Downloads: 1,853,096
Ratings: 4.6 out of 5 stars
2) SI Captcha Anti-spam
This useful plugin adds CAPTCHA anti-spam methods to WordPress forms for comments, lost password, login, registration or other forms. It prevents spam from automated bots and adds security to your website. It also comes with the setting to hide the CAPTCHA from logged in users and admin.
Cost: Free
Downloads: 1,947,731
Ratings: 3.9 out of 5 stars
3) Spam Free WordPress
Spam Free WordPress plugin offers powerful form protection from simple comments. It blocks automated spam with zero false positives. The basic version is available free of cost while users can also upgrade to the pro version. Pro version provides extremely powerful spambot and hackbot protection.
Cost: Free
Downloads: 611,404
Ratings: 3.8 out of 5 stars
4) WP-SpamFree Anti-Spam
It is a powerful anti-spam plugin that eliminates all blog comment spam, including trackback and pingback spam. With installation of this plugin, you can enjoy a spam-free WordPress blog. It also includes spam-free contact form feature.
Cost: Free
Downloads: 494,665
Ratings: 4 out of 5 stars
5) NO CAPTCHA Anti-Spam
This plugin completely removes the concept of CAPTCHA. Keypic checks your forms against the Keypic Web Service to see if they look like spam or not and let you review the spam it catches. Keypic also protects your login form from focused hacking attempts, registration form and other forms you have on your website.
Cost: Free
Downloads: 134,116
Ratings: 3.2 out of 5 stars
6) Growmap Anti Spambot Plugin
This useful plugin adds a client side generated checkbox to your comment form by asking users to confirm that they are not spammer. A check is made that the checkbox has been checked before the comment is submitted to make sure that a comment is not lost when submitted by legitimate human user.
Cost: Free
Downloads: 194,673
Ratings: 4.7 out of 5 stars
7) Anti-Spam
Anti-Spam is a favorite choice of plugin to block spam in comments automatically. It offers you great options to remove spam completely. The more powerful and extended version comes with more features and you can also download Anti-spam pro for added security.
Cost: Free
Downloads: 192,180
Ratings: 4.8 out of 5 stars
8) AVH First Defense Against Spam
This plugin gives you the ability to block spammers before any content is served. The visitor who is trying to post a comment can be checked at third parties: Stop Forum Spam, Project Honey Pot and Spamhaus. Spammers are blocked depending upon the information supplied by the third party or by using a local blacklist.
Cost: Free
Downloads: 126,599
Ratings: 3.8 out of 5 stars
9) WangGuard
WangGuard offers the most advanced protection against sploggers and spam users registration. It works by incorporating an antivirus philosophy.
Cost: Free
Downloads: 119,255
Ratings: 4.7 out of 5 stars
10) Anti-Captcha
It is a transparent spam solution and does not require any end-user interaction. It aims at preventing automated attacks on WordPress actions such as posting comments, registering a new account, or requesting a lost password.
Cost: Free
Downloads: 62615
Ratings: 4.8 out of 5 stars
YOUR CHOICE
Which Captcha plugin have you installed on your website? What features do you like the most about that plugin? Share your thoughts in the comment section below.
If we miss out an important captcha plugin, let us know in the comments.
Thanks for reading.