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Server Load Balancer:Features

Last Updated:Jul 25, 2024

Application Load Balancer (ALB) provides basic, standard, and Web Application Firewall (WAF)-enabled instances. This topic describes the features supported by different editions.

The following table describes the features supported by different ALB editions.

Note

The performance metrics of an ALB instance vary only based on the IP mode of the ALB instance, and are not affected by the edition of the ALB instance. For more information about the performance metrics of ALB instances, see Performance metrics.

Feature

Basic

Standard

WAF-enabled

Listener protocol

QUIC

Supported

Supported

Supported

HTTP/2

Supported

Supported

Supported

WebSocket

Supported

Supported

Supported

Forwarding rule

Distributing network traffic based on domain names or URLs

Supported

Supported

Supported

Distributing network traffic based on HTTP headers

Supported

Supported

Supported

Distributing network traffic based on query strings

Not supported

Supported

Supported

Distributing network traffic based on cookies

Not supported

Supported

Supported

Distributing network traffic based on HTTP request methods

Not supported

Supported

Supported

Distributing network traffic based on source IP addresses

Not supported

Supported

Supported

Distributing network traffic based on response status codes

Not supported

Supported

Supported

Distributing network traffic based on response headers

Not supported

Supported

Supported

Redirects

Supported

Supported

Supported

Rewriting requests or returning custom responses

Not supported

Supported

Supported

Adding or deleting headers

Not supported

Supported

Supported

Traffic mirroring

Not supported

Supported

Supported

QPS throttling

Not supported

Supported

Supported

AScript

Not supported

Supported

Supported

Security

Access control based on whitelists or blacklists

Supported

Supported

Supported

TLS cipher suites

Supported

Supported

Supported

Server Name Indication (SNI) for multiple certificates

Supported

Supported

Supported

Rivest-Shamir-Adleman (RSA) and elliptic-curve cryptography (ECC) certificates

Supported

Supported

Supported

ECC certificates

Supported

Supported

Supported

End-to-end data transfer over HTTPS

Not supported

Supported

Supported

Custom TLS cipher suites

Not supported

Supported

Supported

TLS 1.3

Supported

Supported

Supported

WAF

Not supported

Not supported

Supported

Monitoring

Access log management

Supported

Supported

Supported