You are recommended to use Anti-DDoS Advanced to protect business IPs or domain names of website (layer-7) and non-website (layer-4) businesses in and outside Tencent Cloud.
Currently, website (layer-7) businesses do not support access from regions outside Mainland China, which is supported only for non-website (layer-4) business.
One Anti-DDoS Advanced instance supports 60 forwarding rules by default and can support up to 500 rules. Each rule supports 20 real server IPs/domain names under a non-website (layer-4) protocol or 16 ones under a website (layer-7) protocol.
Currently, Anti-DDoS Advanced is available both in and outside Mainland China. Specifically, it is supported in the following regions outside Mainland China: Hong Kong (China), Taiwan (China), Singapore, Seoul, Tokyo, and Virginia.