URLs and IP Address Ranges

Article author
Josh Lamb
  • Updated

Note

DNSFilter requires connectivity to the Internet. The endpoints below should be reachable for customers using DNSFilter plans, including whitelabel MSP customers.

Data is updated periodically as new features are made available. This is meant to be a starting point for Allowing required traffic and is not an all-inclusive list; some features and functionality will require other addresses to be accessible.

Address Ports Description
127.0.0.1, 127.0.0.2 † UDP: 53 Roaming Client & Relay loopback listener
103.247.36.36, 103.247.37.37 UDP: 53, 5353
TCP: 53, 5353
TCP: 853, 443
Anycast IP addresses for DNS queries, including DNS-over-TLS
103.247.36.101 - 106, 103.247.37.101 - 106 UDP: 53, 5353
TCP: 53, 5353
Anycast IP addresses for DNS queries (NAT IPs)
103.247.36.9, 103.247.37.9 UDP: 53, 5353
TCP: 53, 5353
Anycast IP addresses for DNS queries with DNSSEC support
api.dnsfilter.com TCP: 443 (HTTPS) Roaming Client & Relay API
api.<----------->.com TCP: 443 (HTTPS) Roaming Client & Relay API for whitelabel MSP deployments - contact support for this information.
download.dnsfilter.com TCP: 443 (HTTPS) Roaming Client & Relay auto-update

If these addresses are not available, Roaming Client will use next available loopback address.

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