Statsig provides a robust service designed to ensure the reliability and availability of applications using its platform, even in cases of network disruption. By utilizing locally cached values, both server and client SDKs allow applications to function seamlessly without constant connectivity to Statsig servers. The server SDK retrieves and processes feature flags, experiments, and dynamic configurations locally, ensuring rapid response times, while the client SDK precomputes and caches values for quick access. Both systems handle connectivity loss gracefully through caching and default fallback mechanisms. Statsig operates across AWS and Azure, utilizing autoscaling and frequent failover exercises to maintain performance and reliability. The company emphasizes a builder-friendly culture, open communication about reliability, and a commitment to continuous improvement, drawing on insights from industry leaders and past experiences to refine its approach to experimentation and product development.