How Render handles DDoS attacks

Render offers built-in DDoS protection that automatically filters out network-level attacks using Cloudflare's global network, which prevents malicious traffic from reaching applications without any additional configuration or costs. This protection fully mitigates lower-layer attacks (Layer 3 and Layer 4) by dropping malicious packets at the edge, and applies heuristic-based filtering against large-volume Layer 7 attacks. However, targeted Layer 7 attacks, such as credential stuffing or API abuse, require application-level defenses, as no edge network can distinguish them from legitimate traffic. Render ensures that inbound traffic is free, preventing unnecessary charges and outbound responses during attacks. Developers are responsible for implementing application-level defenses like rate limiting, reading true client IPs from headers, and monitoring service metrics to identify ongoing attacks. In the event of a sophisticated attack, Render support is available for additional mitigation options.

Use this post, company, and trend context to find content marketing opportunities, perform competitive analysis, or address product feature gaps via the Plushcap MCP server or the Plushcap API.