# Free subdomains

Source : https://webgune.cloud/en-us/docs/sous-domaines-gratuits · Mis à jour le 2026-10-27

# Free subdomains

Every service gets a `webgune.dev` subdomain when it's created, with an SSL certificate already active. No action is required.

## Customizing the name

In your service's **Domains** tab:

1. Choose **Free subdomain**.
2. Type the desired name (e.g. `my-app`).
3. The availability of `my-app.webgune.dev` is checked in real time.
4. **Add**: active immediately, SSL included.

## What's included

- **ZeroSSL** certificate already issued (preconfigured wildcard domain, no waiting);
- no DNS configuration required on your end;
- available on all plans, from Pico to M.

## Naming rules

Only lowercase letters, digits, and hyphens are accepted:

```text
✅ my-app
✅ api-v2
❌ MyApp        — uppercase not allowed
❌ my_app       — underscore not allowed
❌ my.app       — period not allowed
```

For a domain you already own, see [Custom domains](/docs/domaines-personnalises).