ntfy

Receive warning and critical alerts on your phone or desktop with the ntfy app.

Setup

1. Install the ntfy app (Android, iOS, or the web app).
2. Subscribe to a hard-to-guess topic (letters, numbers, _ and -; max 64 characters). The topic name is the secret.
3. Cloud URL: https://ntfy.sh/YOUR_TOPIC. Self-hosted: https://your-ntfy-host/YOUR_TOPIC (keep a subpath if ntfy is not at the domain root). For a reserved topic, append ?auth=… (see ntfy authentication).
4. In AlertHub, open the project Connections tab and click the ntfy card.
5. Paste the topic URL and save. HTTPS is required; a self-hosted server must be reachable from the internet.

AlertHub POSTs the message body with Title, Priority (5 for critical, 4 for warning), and Tags headers. Info stays in the dashboard.