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Target customers: all customers. Features released: ALB is a service provided by Alibaba Cloud. ALB runs at the application layer and supports protocols such as HTTP, HTTPS, and QUIC. ALB offers high elasticity and can process a large amount of network traffic at the application layer. ALB supports complex routing. ALB is integrated with other cloud-native services and is designed to serve as a gateway to manage inbound traffic on Alibaba Cloud. 1. ALB is intended for Layer 7 load balancing and provides domain names and virtual IP addresses to handle large amounts of network traffic at multiple levels. ALB distributes network traffic across groups of backend servers and can automatically scale on demand to improve the service availability of your applications. You can use ALB to prevent service interruptions caused by single points of failure (SPOFs). ALB allows you to specify zones and supports on-demand scaling across zones. Each ALB instance supports one million queries per second (QPS). 2. ALB supports HTTP, HTTPS, and QUIC, and can handle large amounts of network traffic. You can use ALB to accelerate and secure access to mobile Internet applications such as real-time audio and video applications, interactive streaming applications, and online game applications. 3. ALB can route network traffic to different backend servers based on the request content such as the path, HTTP header, query string, HTTP request method, cookie, and source IP address. ALB also supports advanced configurations such as redirects, rewrites, and custom HTTPS headers. 4. As cloud-native services develop, a growing number of customers in the Internet, finance, and enterprise sectors choose to deploy their applications in the cloud or migrate their existing business systems to the cloud. As a cloud-native gateway for Alibaba Cloud, ALB is deeply integrated with Container Service for Kubernetes (ACK), Serverless App Engine (SAE), Function Compute, and Kubernetes.