StatusCake

uptime-kuma

Uptime Kuma is a self-hosted uptime and status page that allows you to monitor your websites and applications. It provides a simple and easy-to-use interface to create and manage your status pages.

Cronitor

Cronitor is a monitoring platform built specifically for developers who need visibility into cron jobs, background tasks, websites, and APIs. Its Jobs feature tracks scheduled task status, runtime metrics, and logs, while Checks monitor uptime and performance for websites and APIs from more than a dozen global locations. The platform also offers Heartbeats for simple health-signal monitoring, public or internal Status Pages for communicating reliability, and Analytics that combines real-user traffic, errors, and performance data. Cronitor provides open-source SDKs and documentation, alerting integrations including Slack and email, and both a free-to-start signup and a dedicated pricing page for paid plans.

Pingdom

Pingdom, now part of SolarWinds, is a cloud-based website and application monitoring service that checks uptime, response time, and performance from over 100 locations worldwide. It sends instant alerts via email, SMS, or push notification when a monitored site or server goes down or breaches a performance threshold. Beyond basic uptime checks, Pingdom offers Real User Monitoring (RUM) to measure actual visitor load times, plus public status pages that teams can share with customers to communicate current and historical availability. Plans are priced by the number and frequency of checks, with Starter, Standard, Advanced, and Professional tiers plus a separate add-on for Real User Monitoring.