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Rate Limiting protects against denial-of-service attacks, brute-force login attempts, and other types of abusive behavior targeting the application layer.
Cloudflare’s 20 Tbps global anycast network is 15x bigger than the largest DDoS attack ever recorded, allowing all internet assets on Cloudflare’s network to withstand even massive DDoS attacks.
Rate Limiting provides the ability to configure thresholds, define responses, and gain valuable insights into specific URLs of websites, applications, or API endpoints. It adds granular HTTP/HTTPS traffic control to complement Cloudflare’s DDoS protection and Web Application Firewall (WAF) solutions. Cloudflare charges based on “good” requests i.e requests that match a rule you have created and are allowed to origin servers. This also reduces bandwidth costs by eliminating unpredictable traffic spikes or attacks.
Start Rate Limiting malicious traffic for free today.
Protect your website URLs or API endpoints from suspicious requests that exceed defined thresholds. Granular configuration options including request limits, requests methods, and more.
Website and API visitors hitting defined request thresholds can trigger custom responses, such as mitigating actions (challenges or CAPTCHAS), response codes (Error 401 - Unauthorized), timeouts, and blocking.
Gain deep insights into traffic patterns to help scale and protect your resources. See how much malicious traffic is blocked by rule, how many requests make it to your origin, and more.
Cloudflare Rate Limiting can be activated for free. Self-serve plans include 10,000 free requests per month and Enterprise plans allow for unlimited rate limiting. We only charge for good traffic passing through the rate limited endpoints of your website or API. Good traffic means requests that do not exceed your rate limited thresholds.
Cloudflare's Performance and Security Services work in conjunction to reduce latency of websites, mobile applications, and APIs end-to-end, while protecting against DDoS attack, abusive bots, and data breach.