This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Sift Ninja


Sift Ninja is a free plugin that provides a powerful yet simple way to automatically moderate and filter comments on your WordPress site by calling powerful Sift API. After installation, any new comments posts on your WordPress site will automatically call the Sift API, where it can be classified as Vulgarity (Profanity) Bullying, Racism, Violence, Sexting, or PII (Personally Identifiable Information
). After the comment has been classified, it will be evaluated by the policy guide that you have configured in the app to determine if the comment should be shown. If the comment fails your policy guide, Sift Ninja gives you the option to either discard the comment automatically or prevent it from being seen while it awaits manual moderation.
User need to create an account at, a SaaS software application from Two Hat Security Ltd.


Manage Comments
If the submissions for comments on your WordPress site are abusive or toxic Sift Ninja can automatically identify the topic of the comment, as well as determine the degree of severity for that topic. Using the WordPress moderation options, you can either get Sift Ninja to send unwanted comments to the trash or to moderation for you to review.
Adjust Filter Sensitivity
You can use the Sift Ninja tuning controls to adjust the sensitivity of the filter to match the scope of what you will and will not allow on your WordPress comments. For example your blog may deem some profanity in comments to be acceptable, but not tolerate racist remarks in comments. Sift Ninja can be adjusted to moderate comments so those comments comply with your website’s terms of service.
Save Time
Moderating every single comment can be time consuming if your WordPress site receives a large amount of comments. Sift Ninja can help save time by moderating comments automatically, freeing you up for more important activities.

Plugin Development

We have a dedicated team of professional engineers continuously working on improving and refining the classification technology at the heart of Sift Ninja.

Fork on GitHub

You can see the code for Sift Ninja on GitHub,


If you have encountered an issue in the installation or configuration of the WordPress Plugin, please visit our Success Desk at


Sift Ninja is easy to install. There are several ways to install Sift Ninja on WordPress:
* Upload the entire sift-ninja folder to the /wp-content/plugins/ directory. Then activate the plugin through the ‘Plugins’ menu in WordPress.
* Login as the administrator for your WordPress Admin account. Use the “Add New” menu option under the “Plugins” section of the dashboard navigation, you can either search for: Sift Ninja or if you’ve already downloaded the plugin, click on the “Upload” link, locate the file and then click “Install Now”. Or you can unzip and FTP upload the plugin files to your plugins directory /wp-content/plugins/.

Contributors & Developers

“Sift Ninja” is open source software. The following people have contributed to this plugin.

Translate “Sift Ninja” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.



  • Updated API call to use https
  • Fixed error where channel name was assumed to be ‘comments’, not settings entry.
  • If a comment is already marked as trash or spam, then Sift Ninja is not called.
  • Accounting for an http response code of 200 or ‘200’
  • Fix potential problem where the previous status was lost if an error occured.
  • Fix problem with link from settings page to


  • First Release!