Test Site Shield Map CIDRs

For your user traffic to flow to the origin through the Site Shield efficiently, allowlist the correct CIDR address ranges for your Site Shield map.

Use the CIDR testing tool to:
– Check if the ACLs on your origins’ firewalls are up to date and contain correct CIDR entries as reflected in your Site Shield map.
– Confirm that you correctly updated your ACLs with a new set of proposed CIDRs/addresses before you acknowledge the change for a given Site Shield map.

The testing tool supports both regular Site Shield CIDRs and Stable CIDRs.


You can use the Site Shield Origin ACL testing tool only for maps that are in the approved state.

The testing tool doesn't have a service-level agreement and is not meant to be used for troubleshooting production traffic issues. Use it only for diagnosis.