Send alerts where your team already works. Choose channels per monitor, get a recovery message when things are back, and never miss an expiring certificate.
Every alert says what is down, since when, the error and a link straight to the monitor. Recovery messages include the total downtime.
Connect your own systems, ticketing or on-call tools with signed JSON webhooks.
{
"event": "monitor.down",
"monitor": "Checkout",
"url": "https://shop.example.com",
"error": "timeout",
"started_at": "2026-11-05T14:02:11Z"
}Send a test alert with one click before you rely on it.
Not acknowledged in N minutes? Alert the on-call person by phone push or WhatsApp.
HMAC signatures so you can verify every request.
Free forever for small projects. No credit card needed.