Pa11y : Monitor the accessibility of your websites with pa11y-dashboard, and protect against accessibility errors creeping into your codebase.
Prometheus : Prometheus is an open-source systems monitoring and alerting toolkit originally built at SoundCloud. Prometheus's main features are:
a multi-dimensio...
healthchecks.io : Cron Monitoring. Get Notified When Your Cron Jobs Fail.
Make a HTTP GET request to this address from your cron job, daemon, script or long running tas...
