prevent one user from overusing a resource and degrading the quality of service for other users. - An Interactive Guide To Rate Limiting / HN

• Visualizing algorithms for rate limiting / HN

• Rate limits don’t really protect against backend capacity issue
• If the goal is to protect against bad traffic, consider additional steps besides simple rate limits.
• Be prepared for what to communicate or what action(s) to perform if and when the rate limits are hit
• you need to protect against concertina effects