Throttling - API Gateway - Alibaba Cloud Documentation Center

Cloud-native API Gateway provides throttling plug-ins that help you enhance system performance and stability and manage traffic more efficiently.

Plug-in	Description
key-rate-limit	The key-rate-limit plug-in throttles requests based on specific key values obtained from URL parameters or HTTP request headers.
http-real-ip	The http-real-ip plug-in is a WebAssembly implementation of Module ngx_http_realip_module.
HSTS	HTTP Strict Transport Security (HSTS) is a security protocol designed to enhance the security of web applications.
canary-header	The `canary-header` plug-in adds specific headers to a specified percentage of requests and re-matches routes. This enables percentage-based canary releases on cloud-native gateways without requiring client requests to carry a canary header.
	The `cluster-key-rate-limit` plug-in implements cluster-level throttling based on Redis, enabling globally consistent rate limiting across multiple Higress Gateway instances.
	The `traffic-tag` plug-in tags request traffic by adding specific request headers based on weight or request content. You can configure complex-logic rules for traffic tagging.