Gremlin's default suite of reliability tests evaluates crucial functions of modern services, including scalability, redundancy, and resilience to dependency failures, to ensure services remain available during unexpected incidents. The blog discusses how to interpret failed test results from the seven tests in the Gremlin Recommended Test Suite and turn them into actionable insights. It covers various aspects such as scalability, redundancy, and dependency tests, highlighting the importance of CPU and memory scalability, host and zone redundancy, and managing dependencies' failures and latencies. The post emphasizes the need for regular testing to adapt to changes and maintain service reliability, offering guidance on creating autoscaling rules, using load balancers, and handling slow or unavailable dependencies. Gremlin's platform facilitates tracking reliability changes over time, and the blog encourages using its free trial to uncover hidden risks in systems, thereby empowering users to proactively address availability risks before they impact end-users.