OnlineOrNot provides uptime monitoring and status pages.
Our uptime monitoring lets you continuously monitor any website or API server. It notifies you instantly in the case of any problems - whether that's a timeout, 4xx/5xx error, or your SSL certificate expired.
Our status pages allow your customers and users to check on how your service is running, and get notifications whenever an incident is created, updated, or resolved.
If you have any questions at all - feel free to email me at firstname.lastname@example.org.