Stop Spammers


Stop spam emails, spam comments, spam registration, and spam bots in general.

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Created with a lot of hard work and maintained by Keith P. Graham (from 2010-2017). Thank you Keith.

Maintained (because I love this plugin and want to keep it alive) by myself, Bryan Hadaway (since 2017).

♥ this plugin too? You can help me maintain it or by making a donation.

Need help? Read the FAQs page first, then post on GitHub issues.


Go to Plugins > Add New from your WP admin menu, search for Stop Spammers, install, and activate.


  1. Download the plugin and unzip it.
  2. Upload the plugin folder to your wp-content/plugins folder.
  3. Activate the plugin from the plugins page in the admin.

Either way, Stop Spammers works right out-of-the-box, without needing to adjust any settings. However, if you need it, there are many settings that can be adjusted.


Thanks for keeping this alive & free, tried many plugins, none of them have worked as good as this one, really appreciate it!
I had a almost standard WP/Woo Commerce site which suddenly attracted bots with registrations galore. I installed this, didn't change any settings and it's instantly stopped it. Plus I can see IP's of genuine users and has given me confidence of having this extra layer of security. 5 Star plugin, don't hesitate... install and sit back.
We were getting about 10-20 bogus site registrations per day. Akismet didn't stop them, neither did other plugs we tried. This one works! No more going through our users to dump the daily bunch of spammers.
Boy does this thing work! I used to get 30-40 spam comments a week even using Aksimet. I installed this thing and now I get NO spam comments at all! Does it's job and does it perfectly. Thank you!
I would love to add this plugin to my WP sites but it cannot handle a RFC 1918 private IPv4 address. All my WP sites run in containers behind other containerized proxy-servers in a private docker network. The plugin only sees the WP container's private IP address from the docker network and complains that it cannot function. I would love to be able to provide the public IP address manually, or use the domain name but there is no option for that.
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Browse the code, check out the SVN repository, or subscribe to the development log by RSS.