Know the moment your site skips a beat.
Heartbeat pings your websites and APIs around the clock with fully dynamic HTTP checks — method, headers, body, expected response — and emails you the second something flatlines.
$ no credit card · checks from every 1 min · alerts on down & recovery
// capabilities
Monitoring that speaks fluent HTTP.
Not just "is it up" — describe exactly what a healthy response looks like, and Heartbeat holds every check against it.
Dynamic HTTP checks
GET, POST, PUT, PATCH, DELETE or HEAD. Custom headers, request bodies, timeouts, expected status codes and response-body assertions — per monitor.
Alerts without the noise
A single blip won't page you. Monitors go down only after consecutive failures, with a fast confirmation re-check — then you get one email down, one email up.
Per-day uptime & speed
Every day gets a scorecard: uptime percentage and average response time, kept forever. Spot slow-downs before they become outages.
// protocol
Live in three heartbeats.
Register
Create your account in seconds. No card, no sales call, no nonsense.
Describe a healthy response
Point Heartbeat at a URL, pick a method and interval, and define what "up" means for you.
Relax — we'll wake you
Dashboards stay green quietly. The moment they don't, an email is already on its way.
// begin transmission
Your site has a pulse.
Start listening to it.
Free to start. Your first monitor can be live in under a minute.