Spamming has become one of the recent problems these days, particularly faced by blog owners or admins.
So, what is a spam!? Spam is most often considered to be electronic junk mail or junk newsgroup postings. Generally it is known as unsolicited mail or posts.We bloggers get around 1000’s of spam comments every day.
Bloggers moderate all the comments before they publish. This consumes a lot of time. In order to reduce their work some automated tool or plugin is required to reduce the amount of spam. Now there are a number of anti-spam plugins which are available for the wordpress platform. Thanks to the developers support and the wordpress community. These plugins reduce the spam number. Some of the best anti-spam plugins built for the wordpress platform are:
1. Akismet
This is one of the most popular and best plugin for the wordpress platform. It fulfills as the best spam filtering service as of now. It attempts to filter link spam from blog comments and spam TrackBack pings. It is now included by default in all wordpress builds and activated in all WordPress.com-hosted blogs. There is an API key which needs to be used in order to activate the plugin. The services offered by Askimet are free as well as paid. The business owners prefer paid option in order to get more benefits whereas free service is suitable for personal and small blog/sites.
[button-dark url=”http://wordpress.org/extend/plugins/akismet/” target=”_blank” position=”right”] Download [/button-dark]
2. NoSpam NX
Here is another excellent plugin that protects your blog against spams and spambots. It doesn’t require any JavaScripts, cookies and sessions. NoSpamNX does not change any of your comment fields, but still claims to be effective. The setup is simple and easy to use.
[button-dark url=”http://wordpress.org/extend/plugins/nospamnx/” target=”_blank” position=”right”] Download [/button-dark]
3. Picatcha
It is unique image identification CAPTCHA that effectively protects your website from internet abuse-spam and automated bots. A well known fact that websites lose approx. 3-18% of user interactions (comments, sign-up,etc.,) due to additional burden of re-typing the squiggly garbled text CAPTCHAs.
[button-dark url=”http://www.picatcha.com/#&panel1-1 .” target=”_blank” position=”right”] Download [/button-dark]
4. Cookies for Comment
This anti-spam plugin takes a different approach. It sets a cookie on a random URL that is then checked when a comment is posted. If the cookie is missing the comment is marked as spam. This plugin adds a stylesheet or image to your blog’s html source code. When a browser loads that stylesheet or image a cookie is dropped. So if a spambot leaves a comment the cookie is checked, if it doesn’t exist the comment is marked as spam.
[button-dark url=”http://wordpress.org/extend/plugins/cookies-for-comments/” target=”_blank” position=”right”] Download [/button-dark]
5. WP Hashcash
This is a CAPTCHA based anti-spam plugin that eradicates comment spam or WordPress blogs. It is cent percent efficient in fighting spams. It works because your visitors must use obfuscated javascript to submit a proof-of-work that indicates they opened your website in a web browser, not a robot. If the javascript check fails, WP Hashcash now gives you three options; it can put the comment into moderation (default), put the comment in the akismet queue, or delete it.
[button-dark url=”http://wordpress.org/extend/plugins/wp-hashcash/” target=”_blank” position=”right”] Download [/button-dark]
6. Spammer Blocker
You tired of blocking spammers’ IP manually!? Well..you can preferably use this plugin. It blocks all visitors who posted a comment that was later marked as spam or prevents them from posting comments. It’ll be blocked until you delete the spammers’ IP address from your database.
[button-dark url=”http://wordpress.org/extend/plugins/spammer-blocker/” target=”_blank” position=”right”] Download [/button-dark]
7. Did You Pass Math?
A simple and innovative plugin that requires the user to solve a simple math like “3+5”. If it is solved correctly, it won’t be marked as spam and it’ll be submitted for moderation.
[button-dark url=”https://github.com/sherod/dypm” target=”_blank” position=”right”] Download [/button-dark]
8. Referrer bouncer
This plugin is used to fight the spam which has been referred by the spam links. It is like strong silent bouncer at your favorite club. There won’t be any modifications done but once the comment from the site is marked as spam comes in, it would be flagged off and removed from the queue.
[button-dark url=”http://wordpress.org/support/topic/new-plugin-referrer-bouncer-a-plugin-to-bounce-referrer-spam” target=”_blank” position=”right”] Download [/button-dark]
9. Wp-recaptcha
A well-known WordPress Anti-spam plugin that uses a collection of words from old books for captcha verification.
[button-dark url=”http://wordpress.org/extend/plugins/wp-recaptcha/” target=”_blank” position=”right”] Download [/button-dark]
10. BcSpamBlock
It is a simple way to protect your blog from comment spam. It ensures that the client is a human by using a small bit of javascript on the comments page. Users with Javascript enabled will never notice any difference. For users without Javascript, they will have to copy/paste a short code into a textbox to confirm. A bit of cryptography has been used so that the users can be distinguished from the spam bots.
[button-dark url=”http://wordpress.org/extend/plugins/bcspamblock/” target=”_blank” position=”right”] Download [/button-dark]