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 |
|
45.54.28.11 -> .18 |
DNSFilter Block Page |
† If these addresses are not available, Roaming Client will use next available loopback address.
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