Alibaba Cloud provides basic and standard ALB instances. This topic describes features of basic and standard ALB instances.

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

Description Basic Standard
Listening protocols
QUIC Supported Supported
HTTP/2 Supported Supported
WebSocket Supported Supported
Forwarding rules
Distribute network traffic based on domain names or URLs Supported Supported
Distribute network traffic based on HTTP headers Supported Supported
Distribute network traffic based on query strings Not supported Supported
Distribute network traffic based on cookies Not supported Supported
Distribute network traffic based on HTTP request methods Not supported Supported
Distribute network traffic based on source IP addresses Not supported Supported
Distribute network traffic based on response status codes Not supported Supported
Distribute network traffic based on response headers Not supported Supported
Redirects Supported Supported
Rewrite requests or return custom responses Not supported Supported
Add or delete headers Not supported Supported
Traffic mirroring Not supported Supported
QPS throttling Not supported Supported
AScript Not supported Supported (submit a ticket to be included in the whitelist)
Security
Access control based on allowlists and denylists Supported Supported
TLS cipher suites Supported Supported
Server Name Indication (SNI) for multiple certificates Supported Supported
Rivest-Shamir-Adleman (RSA) and elliptic-curve cryptography (ECC) certificates Supported Supported
ECC certificates Supported Supported
End-to-end data transfer over HTTPS Not supported Supported
Custom TLS cipher suites Not supported Supported
TLS 1.3 Supported Supported
Monitoring
Access log management Supported Supported