All Products
Search
Document Center

:What are the proactive detection IP addresses of Anti-DDoS Pro and Anti-DDoS Premium?

Last Updated:Nov 13, 2024

Anti-DDoS Pro or Anti-DDoS Premium uses specific IP addresses to proactively detect the health status of your protected origin servers. We recommend that you do not block these IP addresses.

Anti-DDoS Pro or Anti-DDoS Premium proactively detects the health status of your protected origin servers at irregular intervals. This allows you to make sure that the origin servers can respond to the normal requests forwarded by Anti-DDoS Pro or Anti-DDoS Premium.

Anti-DDoS Pro or Anti-DDoS Premium uses fixed IP addresses to detect only the health status of your protected origin servers. The detection does not affect your origin servers. If data packets from proactive detection IP addresses are found in the access logs of your protected origin servers, it does not mean your origin servers are under attack. We recommend that you add proactive detection IP addresses to a whitelist in the access control policies of your origin servers. This allows you to make sure that the health check feature of Anti-DDoS Pro or Anti-DDoS Premium works as expected.

Proactive detection IP addresses at Layer 3

Region

Proactive detection IP address

China (Qingdao)

47.104.162.123

China (Beijing)

39.107.84.97

China (Hangzhou)

47.97.187.10

China (Shanghai)

47.100.176.74

China (Shenzhen)

120.78.69.183

Line cn335, China Unicom Dalian branch

211.93.148.207

China (Hong Kong)

47.52.224.185

Singapore

47.74.135.107

Malaysia (Kuala Lumpur)

47.254.197.21

US (Virginia)

47.90.210.37

US (Silicon Valley)

47.254.31.65

Germany (Frankfurt)

47.254.133.240

Proactive detection IP addresses at Layer 4 and Layer 7

Type

Proactive detection IP address

Private network

  • 10.181.0.186

  • 10.181.0.187

  • 10.181.2.120

  • 10.181.2.126

Internet

  • 140.205.205.7

  • 140.205.205.6

  • 140.205.205.15

  • 140.205.205.11