Policy Group

A policy group may contain multiple policies. It can be a proxy policy, another policy group or a built-in policy (DIRECT and REJECT).

There are three group types: ‘select‘, ’url-test‘ and ’ssid‘. Section [Proxy Group] declares policy group.

Manaully Select Group

Select which policy will be used on the user interface.

SelectGroup = select, ProxyHTTP, ProxyHTTPS, DIRECT, REJECT

In iOS version. You may use Today Widget to quickly switch policy for the first 'select' group. In macOS version. You may switch the policy in the menubar menu.

Auto URL Test Group

Automatically select which policy will be used by benchmarking the latency to an URL.

AutoTestGroup = url-test, ProxySOCKS5, ProxySOCKS5TLS, url = http://www.google.com/generate_204

Parameters

url: Required

Surge will send a HTTP HEAD request to the URL. The test only cares about whether receiving a response data, even if the response is a HTTP error.

interval: Optional, s (Default: 600s).

The benchmark result will be discarded after the interval time. A retest will happen if the policy group is used.

tolerance: Optional, ms (Default: 100ms).

Policy will be changed only when the new winner has a higher score than the old winner's score plus the tolerance.

timeout: Optional, s (Default: 5s).

Abandon a policy if not finished in timeout.

Fallback Group

Select an available policy by priority. The availability is tested by accessing an URL, just like an auto URL test group. The policy defined in the front has a high priority.

FallbackGroup = fallback, ProxySOCKS5, ProxySOCKS5TLS, url = http://www.google.com/generate_204

Parameters

url: Required

Specify which URL will be tested.

interval: Optional, s (Default: 600s).

Determine how long the benchmark result will be discarded.

timeout: Optional, s (Default: 5s).

Abandon a policy if it is not finished until timeout.

SSID Group

Select a policy according to the current Wi-Fi SSID.

SSIDGroup = ssid, default = ProxyHTTP, cellular = ProxyHTTP, SSIDName = ProxySOCKS5

Parameters

default: Required.

The policy when no matched SSID option has been found.

cellular: Optional.

The policy under cellular network. If not provided, the default policy will be used.

External Group

Starts from Surge Mac v3.0 and Surge iOS v3.4. A policy group may import policies defined in an external file or from an URL.

egroup = select, policy-path=proxies.txt

This file contains a list of policies, just like the definition lines in the main profile

Proxy-A = https, example1.com, 443
Proxy-B = https, example2.com, 443

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