At Checkly, the company prioritizes reliability and uses its own product for monitoring, employing a dogfooding approach to ensure robustness and effectiveness. Shipping daily updates with diverse customer bases presents challenges, including managing complexity in checks that support multiple platforms and regions. To address this, Checkly has implemented a "Smoke Test Matrix" - a collection of checks continuously monitoring the health of its platform, covering various check types and variants. The matrix includes passing and failing checks, as well as alerts for failure, recovery, and non-run scenarios, allowing the company to detect issues and investigate promptly. Leveraging automation tools, Checkly has created a safety net that catches bugs before they impact customers, forming a crucial part of its commitment to high reliability and observability.