IP address and URLs to Whitelist
Written by Owen Parry
Updated at August 5th, 2025
This article lists the necessary IP addresses, URLs, and ports for CyberFOX DNS Filtering to operate correctly. The following endpoints must be reachable to use the CyberFOX DNS Filtering services.
| Site or service | IP Addresses | Ports |
| Management Portal | app.cyberfox.com | 443 |
| DNS Service | *.dns.cyberfox.com | 443 |
| DNS Forwarding Servers |
166.117.83.181 166.117.241.23 |
53 |
| DNS Anycast IPs |
166.117.75.142 166.117.157.16 |
|
| DOH Anycast IPs |
v4 166.117.51.148 166.117.130.22 v6 |
|
| Registration / Update service | msapidns.cyberfox.com | 443 |
| Roaming Client Loopback Listener | 127.0.0.1 | 53 |