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Server Load Balancer

Server Load Balancer (SLB) is a service that distributes network traffic across groups of backend servers to increase the throughput of your applications. You can use SLB to prevent service disruptions caused by single points of failure (SPOFs) and improve the availability of applications.

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Branded Products

Application Load Balancer

ALB provides ultra-high Layer 7 processing capabilities such as SSL offloading for HTTPS traffic. Each ALB instance can serve up to one million queries per second (QPS). An ALB instance serves as a cloud-native gateway on Alibaba Cloud and provides advanced content-based routing features.

Network Load Balancer

NLB designed to connect all things to the Internet. NLB is a Layer 4 load balancing service that offers ultra-high performance and can scale in response to network load. An NLB instance serves up to 100 million concurrent connections, which is ideal for services that require high concurrency.

Classic Load Balancer

CLB supports TCP, UDP, HTTP, and HTTPS. CLB provides advanced Layer 4 processing capabilities and basic Layer 7 processing capabilities.

Learning Path
Start your journey with Server Load Balancer
ALB
Product Introduction
What is Application Load Balancer (ALB)?
Features and limits of different editions
ALB billable items
Quick start
Instance
Create an ALB instance
View details of an ALB instance
Manage ALB instances
Modify the configurations of an ALB instance
Listeners
Add an HTTP listener
Add an HTTPS listener
Add a QUIC listener
Create forwarding rules
Safety Management
Access control
Health check management
Manage certificates
TLS security policies
NLB
Product Introduction
What is NLB?
Functions and features
Regions that support NLB
Instance
Overview of NLB instances
Create and manage an NLB instance
Change the network type of an NLB instance
Modify the configurations of an NLB instance
Listeners
Overview of NLB listeners
Add a TCP listener
Add a UDP listener
Create a listener that uses SSL over TCP
Manage NLB listeners
Server Groups
Overview of NLB server groups
Create and manage a server group
Security Management
TLS security policies
Add an NLB instance to a security group
NLB API reference
List of operations by function
CLB
Product Introduction
What is CLB?
Architecture
Features
Scenarios
Pricing
Pay-as-you-go
Quick Start
Make preparations
Create a CLB instance
Configure a CLB instance
Release an SLB instance
User Guide
CLB instance overview
Listener overview
Backend server overview
Health check overview
Certificate overview
Overview
Monitoring and alerting metrics
View operation logs
Developer Guide
List of operations by function
Download SDKs
CLB
Redirect HTTP requests to HTTPS
Preserve client IP addresses when Layer 7 listeners are used

Server Load Balancer

Branded Products

Application Load Balancer

Network Load Balancer

Classic Load Balancer

Learning Path

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