Comment spam is a common thing that can affect WordPress websites. In this post, I will show you detailed steps on how to use a custom WAF rule with JS Challenge in Cloudflare to block comment spam in WordPress.

Table of Contents:

• Step 1: Create a Custom WAF Rule
• Step 2: Enable JS Challenge
• Conclusion

Step 1: Create a Custom WAF Rule

Log in to your Cloudflare Account, go to the “Security” tab and select the “WAF” tab and click on “Custom Rules“. Here, you can create a new custom WAF rule by clicking on the “Create Rule” button. In the rule creation screen, set the “Field” to “URL“, the “Operator” to “contains“, and the “Value” to “wp-comments-post.php“, which is the WordPress file that handles comment submissions.

Step 2: Enable JS Challenge

In the “Actions” section of the custom WAF rule, select “JS Challenge” from the drop-down menu, and then click on the “Deploy” button to enable the JS Challenge for this rule.

Conclusion

By creating a custom WAF rule with JS Challenge using Cloudflare, you can block spam comments. By following the steps outlined in this post, you can keep your comment section clean and spam-free.