> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mysrvr.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Subdomain System

> How mysrvr.org routes subdomains to server pages.

# Subdomain System

Every registered server gets a unique URL:

```
https://yourserver.mysrvr.org
```

***

## How Routing Works

When a request hits `*.mysrvr.org`, the server reads the subdomain from the `Host` header and looks it up in the database. If a match is found it renders that server's page — if not, you get a 404.

No per-subdomain DNS setup is needed. A single wildcard DNS record points all subdomains to the same server, and the app handles routing from there.

***

## Wildcard SSL

mysrvr.org uses a wildcard SSL certificate (`*.mysrvr.org`) so every subdomain — including brand new ones — is automatically covered by HTTPS the moment it's registered. No setup required on your end.

***

## Subdomain Availability

Subdomains are first-come, first-served. Once registered, a subdomain belongs to that server until the listing is deleted.

### Reserved Subdomains

The following cannot be registered:

* `www`
* `api`
* `dashboard`
* `admin`
* `mail`
* `ftp`
* `static`
* `assets`

Attempting to register a reserved subdomain will return an error.

***

## Changing Your Subdomain

You can change your subdomain anytime from the [dashboard](/dashboard). The old subdomain is released immediately, so be sure before switching.