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 |