VX DocsSelectors
Proxy selectors in Advanced routing
Selector selector a node to be use by proxied connections from a range of nodes.
Selector filter
The Range (selector filter) defines which nodes the selector may choose from.
| Range | Meaning |
|---|---|
| All Nodes | All nodes. |
| Partial Nodes | Only nodes you specified. |
When Partial Nodes is selected, use the filter chips to narrow the pool.
| Filter | Meaning |
|---|---|
| Node | Individual nodes. |
| Group | Node group or subscription. |
| Prefix | Nodes that starts with the given prefix string. |
| Sub String | Nodes that contains the given substring. |
| Area | Nodes in the area. |
Changes to the filter take effect immediately, no need to restart.
Select strategy
After filtering, the Select Strategy decides which node(s) from that pool are actually used.
| Strategy | Meaning |
|---|---|
| All | Every node in the filtered pool |
| Usable | All nodes that are usable |
| Lowest Latency | The single node with the lowest ping |
| Speed Highest | The single node with the highest measured throughput |
| Low Latency | All nodes whose ping is within 30% of the best ping (e.g. best 100 ms → include nodes ≤ 130 ms) |
| High Speed | All nodes with throughput ≥ 70% of the best (e.g. best 100 → include nodes ≥ 70) |
Strategies that pick one node (Lowest Latency, Speed Highest) do not show a balance strategy — each connection uses that single node.
Strategies that pick multiple nodes (All, Usable, Low Latency, High Speed) show Balance Strategy below.
Test intervals
Each selector will test nodes periodically. You can configure how to test:
| Field | Default | Purpose |
|---|---|---|
| Speed test size | 1,000,000 bytes (1 MB) | Download size for each speed test. |
| Speed test interval | 60 minutes | How often to speed-test filtered nodes. |
| Ping test interval | 10 minutes | How often to ping filtered nodes. |
| Unusable test interval | 10 minutes | How often to re-check nodes marked unusable. |
Only Speed Highest and High Speed test speeds periodically. Only Lowest Latency and Low Latency test ping periodically. All strategies except All test usablility and unusable nodes periodically.
Balance strategy
When the select strategy keeps multiple nodes active, Balance Strategy decides which node handles a connection:
| Strategy | Behavior |
|---|---|
| Random | Pick a random node from the active set for a connection. IPv6 traffic prefers IPv6-capable nodes when available. |
| Memory | Stickiness: reuse the same node for the same app or root domain when possible. If no mapping exists yet, assign randomly and remember it. IPv6 traffic prefers IPv6-capable nodes. |
Use Memory when you want stable exits per site or app (fewer IP changes mid-session). Use Random when you want even load spread across nodes.
Note: Balance strategy applies only when multiple nodes are selected (All, Usable, Low Latency, or High Speed). It does not apply to Lowest Latency or Speed Highest.
Note: Each selector will test whether a node support IPv6 to make sure IPv6 connections are not sent nodes that do not support IPv6.
Node chain
Node chain (land handlers) sends traffic through extra proxy hops after the node chosen by the selector.
Traffic path:
[Your traffic] → [Node(s) selected] → [First node in Node Chain] → … → [Last node in Node Chain] → [Destination]The last node in the Node Chain list is the landing node (final exit before the destination).
Use node chain when you need a fixed downstream hop (for example exit via a specific region) on top of whatever node the selector picks. See Chain Proxy for details and limitations.
The Proxy selector
This selector is special because it supports Manual node selection, whic means that the nodes to be used are selected by you manually in Node tab. You will see switches in Node tab when you use the manual node selection.
Related
- Automatic Node Selection — manual vs auto on Home for the Proxy selector
- Chain Proxy — landing nodes and multi-hop proxy
- Routing modes — rules that reference selectors as outbounds
- Customize tab — Simplified vs Advanced overview