Guides 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 for staying up.
Practical guides and articles about uptime monitoring, SSL certificates, DNS, cron jobs, servers and status pages, from the team behind Uptimecheck.
Guides 8 min read
503 Service Unavailable: What It Means and How to Fix It
A 503 Service Unavailable error means the server is reachable but cannot handle the request right now. The common causes, how to fix each one and how monitoring catches 503s early.
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 5 min read
What Is Uptime Monitoring? How It Works and What 99.9% Really Means
Uptime monitoring checks your website or API on a schedule and alerts you when it fails. How checks work, which interval to choose and what uptime percentages mean in minutes.
ReadGuides 2 min read
Protect Your Online Presence with Domain Monitoring: Why It’s Essential for Your Business
An expired domain or a changed DNS record can take a business offline in an instant. What domain monitoring covers and how to set it up.
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.
ReadMonitoring 2 min read
Uptime Monitoring: Why It’s Essential for Your Business Website
Downtime costs revenue and customer trust. Why every business website needs uptime monitoring, and how to set it up so problems are found in minutes.
ReadAgencies 1 min read
5 Hot Digital Trends for Web Agencies That You Can’t Ignore
Five digital trends web agencies were watching in 2022, from voice search and augmented reality to mobile-first design, and what they mean for client work.
ReadPerformance 2 min read
10 Tips to Get a Faster Loading Website
Ten practical ways to make your website load faster, from a CDN and image optimization to caching, compression and server response time.
ReadAgencies 2 min read
Uptime Monitoring for Web Agencies: Why and How Easy It Is to Get Started
Clients expect their agency to know first when a site goes down. Why uptime monitoring belongs in every agency’s toolkit and how to start in minutes.
ReadGuides 3 min read
Maximizing Your Website’s Potential with Reliable Uptime Monitoring
A website only earns when it is reachable. How reliable uptime monitoring protects revenue, what to look for in a service and how to act on the data.
ReadDowntime is obsolete.
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