This plugin allows you to have a simple rate limit option to protect the site against DDoS or brute force attacks. It is suitable to Prevent against IP Stresser and booter scripts that want to increase the consumption of your site’s resources with a “Slow” method.
Causes critical error
By 
I'm on v6.5.4. Installed the plugin, started it going with default settings, and immediately all visitors who weren't logged-in users received a "critical error" message. This may be down to the WordPress version (untested, in fairness) or another plugin causing incompatibility but I don't have time to tinker. A shame as it would definitely have helped with some ongoing issues!
Useful
By 
very Useful! test it
1.0
- no change.
- Just Active it.
- Done 🙂
Reviews
3 out of 5 stars
- Version: 1.0
- Last updated: 5 months ago
- Active installations: 30
- WordPress version: 4.0.1
- Tested up to: 6.4.5
- PHP version: false