Website (HTTP/HTTPS)

Checks that a URL answers with a success code (200–399 by default). You can list exact codes you expect.

Keyword

Like a website check, but also looks for a word on the page (or makes sure a word is not there, such as "Fatal error").

JSON API

Reads a value from a JSON response, for example status must equal ok. Agency plan.

SSL certificate

Warns you 30, 14 and 7 days before a certificate expires.

Ping and Port

Checks that a server answers or that a TCP port (like 22, 25 or 3306) accepts connections.

Heartbeat (cron jobs)

We give you a unique URL. Your job calls it each time it runs. If we stop hearing from it, we alert you.

Domain expiry

Looks up your domain's registration expiry date and warns you before it lapses.