Welcome to Cloud Load Balancer (CLB). CLB distributes client requests to multiple real servers in the same region by setting a virtual IP address (VIP).
CLB virtualizes multiple CVMs into an available application service pool. It checks the health of the instances in the pool and automatically isolates the unhealthy ones, thus resolving single points of failure issues and improving the overall service capabilities of the applications. In addition, CLB provides a defense capability of more than 300 Gbit/s against DDoS attacks.
CLB is a solution that serves multiple machines simultaneously, and it must be used together with CVM.
All CLB APIs in this section have been upgraded to API 3.0. Future CLBfeatures will also be added here. We recommend using API 3.0.
Legacy APIs remain available, but will not be updated. For more information, please see CLB API Overview (legacy).