Testing
Webhook providers retry failed deliveries. Your handler will receive duplicate events. Testing retry behavior — and ensuring your handler survives it — is as important as testing the happy path. This guide covers testing webhook retry logic from both sides: testing your handler's idempotency under retries, and testing your own
Testing
A game day exercise is a structured event where an engineering team deliberately causes failures in their own systems — and then observes, learns, and improves from the experience. It's the practice that turned Netflix into the company that wrote Chaos Monkey, that AWS uses before every major infrastructure
Testing
Business continuity testing is not just for disaster recovery — it's about systematically validating that your organization can maintain critical operations under a wide range of adverse conditions. Unlike DR testing (which focuses on technical recovery), BCT covers the full picture: technology, people, processes, and communication. This checklist is
Testing
Most disaster recovery plans have never actually been tested. They exist as documents — carefully written, officially approved, and completely unvalidated. When an actual disaster hits, teams discover that the documented 4-hour RTO takes 14 hours, the backup restoration process is broken, and nobody has the credentials to access the
SRE
SLI, SLO, and error budget are the vocabulary of reliability engineering. They give you a rigorous way to answer "is our service reliable enough?" and "how much risk can we take with this deployment?" without relying on gut feeling or incident retrospectives. This guide covers how
SRE
When an incident happens at 3 AM, the quality of your response depends on two things: the quality of your runbooks and how many times your team has practiced them. Testing runbook automation and running incident drills converts theory into muscle memory. Automated Runbooks vs. Reference Runbooks Reference runbooks are
SRE
Disaster recovery plans that exist only in documentation are not plans — they're aspirations. The difference between a DR plan that works and one that fails during an actual disaster is whether you've tested it. This guide covers the three tiers of DR testing: tabletop exercises, game