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What are Node Tags?


Node tags are defined by Wumbo.network. Node tags are our attempt to categorize and label nodes based on their attributes. A tag may utilize statistics, heuristics, or other metadata to classify nodes.

Implementation Tags

Different implementations of Lightning Network node software support different features by default. It is possible to use these default values as a heuristic to identify what implementation of the software a Lightning node is running. Its also possible to fool the heuristic intentionally or unintentionally.

Fee Tags

Routing nodes on the network set fees on their channels. Outbound fees are collected by the node that forwards liquidity in the channel. Inbound fees are collected by the node that recieved liquidity in the channel. Fees can be priced as a base-fee, a PPM (Parts Per Million) fee-rate, or a combination of both.

Rank Tags

Rank tags are based on the public channel capacity of a node.

Networking Tags

A node can optionally advertise of Uniform Resource Identifiers (URIs). This is the Clearnet (IPv4 or IPv6) or Onion address that nodes use to peer with one another.

Wumbo Tags

By default, an LND node cannot open a channel larger than 16,777,216 sats. Nodes have to enable a config option to enable larger channels.

Color Tags

Nodes can broadcast a 3 byte RGB color value.Node colors

Disabled Channel Tags

When a node disables a channel, it stops sending liquidity from its side of the channel. However, the node can still receive funds through the disabled channel. Of course if both sides are disabled, no funds can shift due to routing.

Alias Tags

Nodes can optionally broadcast a UTF-8 string.

Country Tags

Nodes which broadcast an IP address are tagged with origin country for that IP address.