# Server

Site [llms.txt](/llms.txt)

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## Server Attributes

**Attributes:**

| Key | Stability | Value Type | Description | Example Values |
| --- | --- | --- | --- | --- |
| <a id="server-address" href="#server-address">`server.address`</a> | ![Stable](https://img.shields.io/badge/-stable-lightgreen) | string | Server domain name if available without reverse DNS lookup; otherwise, IP address or UNIX domain socket name. [1] | `example.com`; `10.1.2.80`; `/tmp/my.sock` |
| <a id="server-port" href="#server-port">`server.port`</a> | ![Stable](https://img.shields.io/badge/-stable-lightgreen) | int | Server port number. [2] | `80`; `8080`; `443` |

**[1] `server.address`:** When observed from the client side, and when communicating through an intermediary, `server.address` SHOULD represent the server address behind any intermediaries, for example proxies, if it's available.

**[2] `server.port`:** When observed from the client side, and when communicating through an intermediary, `server.port` SHOULD represent the server port behind any intermediaries, for example proxies, if it's available.