Monitoring 6 min read
Heartbeat Monitoring vs Uptime Checks: When to Use Which
Uptime checks ask your service whether it is up; heartbeats wait for your job to say it ran. How each works, what each misses, and how to combine them.
ReadServers and cron
Server resources, cron jobs and heartbeats: how to watch the background work your site depends on and get alerted when a scheduled job does not run.
Monitoring 7 min read
Server Monitoring Alert Thresholds That Don’t Wake You Up for Nothing
Good server alert thresholds catch a filling disk or a memory leak early without paging anyone for a harmless spike. Starting values for CPU, load, RAM, swap, disk, network and reboots.
ReadGuides 6 min read
How to Monitor Cron Jobs with Heartbeats
Cron jobs fail silently. A heartbeat monitor alerts you when a scheduled job does not check in on time. How heartbeats work, how to add one to a crontab and which settings to choose.
ReadGuides 8 min read
Cron Expressions Explained: Syntax, Examples and Common Mistakes
A cron expression is five fields that say when a job runs. The syntax, special characters and @daily shortcuts, ready-to-use examples and the time zone and PATH mistakes that break jobs.
ReadGuides 3 min read
Keeping Your Website Running Smoothly: A Guide to Tracking Server Status
A practical guide to server monitoring: which metrics to track, how to set useful alerts, how to read logs and how to fix the most common server problems.
ReadGuides 3 min read
Prevent Missed Tasks: Ensure Your Cron Jobs Are Running Smoothly
Backups, imports and cleanups run on cron, and they fail silently. Common causes of missed cron jobs, how to troubleshoot them and how to get alerted when a job does not run.
ReadDowntime is obsolete.
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