Region
Description
Regions are determined based on geographical location and network latency. Public service resources, such as Elastic Cloud Server (ECS), Elastic Volume Service (EVS), Object Storage Service (OBS), Virtual Private Cloud (VPC), Elastic IP (EIP), and Image Management Service (IMS), are shared within the same cloud region. Regions are either common or dedicated. A common region provides common cloud services available to all tenants. A dedicated region provides services of a specific type or only for specific tenants.
A region is the location of the physical data center. Different regions indicate different physical distances between the physical data center and users, as well as different network latency. To reduce latency and improve access speed, select the region closest to your services.
FAQs
How Do I Select a Region When Purchasing a WAF Instance?
Generally, a WAF instance purchased in any region can protect web services in all regions. To make a WAF instance forward your website traffic faster, select the region nearest to your services.
For example, if you purchase WAF only in region A and need to cover services in region B, it takes a longer time to forward services in region B than services in region A. Therefore, at least two WAF instances in two cities should be purchased to protect workloads in the corresponding city, respectively, improving the forwarding efficiency.
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