4 Best WordPress Plugins to Stop Comment Spam

Which are the best WordPress comment spam blocking plugins. Probably most of you use the amazing Aksimet plugin which comes bundled with WordPress, but it is not enough to stop hundreds of spam comments on popular blogs, and many slip through (We got over 3 million spam comments!). The problem with thousands of spam comments is that the good comments are masked and its a huge effort to weed out the actual comments from spam comments.

There is a need to have excellent spam blocking tools so that you can concentrate your valuable time on blogging, rather than moderating comments. So here is our pick of the best spam comment blocking WordPress plugins. You might have seen them live on our site at some time over the last year and all have undergone extensive live testing over several  months.

Growmap Anti Spambot Plugin

We have blogged about GASP before and it is a very powerful plugin. It basically forces users and bots to click a client side generated checkbox – to confirm the comment. Many bots fail to visualize the checkbox generated by client side javascript, and this blocks comments from automated comment bots easily.

gasp comments checkbox

While we used it for several months, one day the bots learnt how to bypass this! The plugin then allows you to change the Checkbox name and secret key, which will take care to such bots. It also allows you to choose a maximum number of comments from a user.

gasp options

Its a good choice, but we needed to keep changing the keys often once the bots started to target the site. Get GASP Ant-Spambot plugin.


 This plugin adds a CAPTCHA text to your WordPress comments and only those users typing the correct code will be allowed to post a comment.
comments captcha
The settings will allow you to change the style, text and will also allow you to add the Captcha code to login /register forms, lost password pages to further control blog spam.
captcha options

It is noted that many users find this effort to type the code cumbersome, and may not post a comment, but it does take care of a lot of spam. It is a step above the checkbox of the earlier plugin, and very effective to blog spam. Get SI-CAPTCHA anti spam plugin.

Cookies for Comments

This plugin loads a stylesheet or image and drops a cookie. When the users tries to post a comment and it does not match the cookie, the spam comment is not posted. Most spambots will have a non existent cookie, and will get blocked.

cookie comments

The advantage is that is seamlessly works in the background, with no checkbox to click or CAPTCHA to type, and there is no user interaction needed. We are using this for several months now, and there is hardly any spam in my moderation queue. All spam comments are accurately identified and end up in the spam queue.

They even allow htaccess code changes, which can block spam before it reaches your blog! Get Cookie for Comments plugin.


Of course you need to keep Akismet (which comes preloaded with every WordPress) activated as it is by far the best antispam plugin. Its best to add one of these plugins above in addition to Akismet for the best results. See which plugin works best for your site, but do not activate more that one of the 3 above with Aksimet as they might conflict with each other with unexpected results.

Now I can spend more time blogging, rather than worry about moderating spam comments. You might also open comments in new window, or open comments in new page, or remove comment links to reduce the priority with which spam bots might want to target your blog. And of course there is nothing better than how to moderate comments quickly.

68 comments on “4 Best WordPress Plugins to Stop Comment Spam

  1. Andtzej says:

    Must admit, always hated the whole captcha thing. I have been using Are You Human for a while. It gets you to play a simple game to prove you are human!

  2. Angela says:

    The problem that people also don’t recognise is that some spam is not comment spam but linkback spam. So you need to guard from both sides. So these are fantastic and I will be trialling some but if you know any plugins that also fight linkback spam that would be fabulous.

  3. adam says:

    Nice share i love this blog. many thanks for share this idea.

  4. Rashed Khan says:

    this is a great article for everyone. i think if you read this article you can understand all your problem in your wordpress. nice share

  5. Afzaal says:

    To be protected from spam bots, there are different techniques being used now a days. Some of the captcha used are even really tough to read and one can really become irritated by applying it more than one time. The plugins that you have mentioned are nice ones and people must use these type of plugins to stop spamming.

  6. Stephen Brian says:

    This is Really Helpful and Valuable Post. Thanks for Sharing with us.

  7. Isaac says:

    What about CommentLuv premium? it works great too, you need to try it out

  8. Neha Sharma says:

    Spammer is always a big headache for me and things that u have shared here i hope it will help me a lot to prevent the spamming

  9. Lawrence says:

    I have just set up a new site using wordpress and i am already getting a ton of spam which is kind of annoying, hopefully this guide will help.

  10. knight says:

    Thanks for helping all of us to organize some of the best plugins which cant be ignore for betterment and quality

  11. Robinsh says:

    I know about Anti Grow Map and also uses it over my various WP blogs because Akismet never worked for me and yeah I agree with this blog post because it really works in managing spam comments.

  12. Pawan J says:

    I have bookmarked this blog and really all tips are very helpful :D

  13. Victor Moldau says:

    Great post! I was wondering, for a small blogger like myself, which wold you recommend using?

  14. Tejwinder says:

    Now this is really amazing, how can you people manage to get stuff like this? Man, this is really worth reading and I am going to bookmark your blog for this. Keep updating us.

  15. Mustafa Gaziani says:

    I gotta say, this post has a lot for their readers. It is compulsory for every blogger to safe their site from spammers and this post means a lot for them.

  16. Muppaprojects says:

    Love post to share with all, it can be very useful to all the bloggers.

  17. Aman Sareen says:

    The one of the best is to use premium akismet version for better response

  18. Kristina Roy says:

    I really impressed with your post. You discussed useful points for stop comment spam. I definitely follow this useful plugins. Thanks to share it.

  19. Michelle says:

    I do use akismet to prevent comment spam in my wordpress blog and I must say it’s quite effective too.

  20. The Top Blogger says:

    It’s Really Amazing Post. Thanks.

  21. Bill says:

    I switched from captcha comment on my blog to a manual review of all comments. unfortunately that was the only way to stop comment spam.

  22. Rachel says:

    Spamming is always going to be a problem, but these tips might help us out a little bit.

  23. prodebway says:


    This four word press plugin is really nice. I am going to use one of plugin in my upcoming project .Thanks for the wonderful post.

  24. Ish Sarwar says:

    Hi, Nice plugins. I get a lot of spam comments so these plugins would be useful. I like your idea of spending less time on the comments and more time on blogging.

  25. Karan Bhagat says:

    Captcha is the thing which users hate but for bloggers or webmasters it is must to prevent hundreds of spam comments. I personally use it along with Akismet plugin and quite satisfied with the service.

  26. Jason says:

    I have struggled with comment spam and totally forgot about akismat. I’m not sure why I never tried it, I guess I thought it was a bit commercial and thought something else may be more effective. Thank you for the post!

  27. Dipak Kumar says:

    Yes this is quite good. Spamming is the most considerable topic today for the website owners. This post is really nice for all of us. I can also make use of these tips to prevent spamming. To comment on a post has a great meaning, you put your relevant ideas to the author. But nowadays it is nothing but a medium of doing spam and self promotion. So, i would like to say thanks to the author as they helped to all of us. Keep going.

  28. The Top Blogger says:

    Getting excited about reading more. Great blog post.Really looking forward to read more. Great.

  29. Kailash Chandra says:

    Hii, Growmap Anti Spambot is the one I found simple and working to help stop spam, Akismet also helps a lot as it says that it had blocked lots of spam comments.. I didn’t tried Captcha yet but will try it in near future :)

  30. Felix says:

    You also got to see which CAPTCHA is good for your audience. I work with home care/seniors and it seemed to me if i had trouble reading the CAPTCHA so would they.

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