Insights, guides, and best practices for API monitoring and reliability.
Most teams learn their website is down from an angry customer email. Here's how outage monitoring actually works — from DNS and SSL failures to regional blind spots you can't see from your office.
When your auth breaks, everything breaks — yet most monitors skip authentication entirely. How to monitor OAuth flows, token expiry, and protected endpoints end-to-end.
You don't need a budget to know when your API goes down. Here's what free API monitoring can (and can't) do, and how to get real coverage without a credit card.
Your average response time is lying to you. Learn what latency percentiles actually measure, why the tail matters most, and which percentile to alert on.
Synthetic monitoring simulates real user interactions against your live systems on a schedule, so you find problems before your users do. Here's how it works and how it differs from RUM.
Every HTTP status code tells a different story about what happened on your server. Here's what each range actually means — and which ones deserve an alert.
An expired TLS certificate breaks every client in seconds. Here is how expiry works, why auto-renewal fails silently, and how to catch it with staged alerts.