...Tackling each curious anomaly that threatens your site’s reliability saps developer productivity and happiness. Rack::Attack lets you throttle abusive requests with just a few lines of code. For the security of our users, we have a stricter throttle for login attempts. This makes it very time consuming for attackers to guess users’ passwords. We also use the IPCat ruby library to detect requests from well-known datacenters. Rack::Attack can also track requests without blocking them. We rely on Rack::Attack to let developers quickly track and throttle requests. ...