Major cloud providers like Amazon Web Services, Microsoft Azure, and Google Cloud have developed Well-Architected Frameworks to help organisations build high-quality, resilient infrastructure. These frameworks are structured around core pillars, which typically include security, reliability, operational excellence, cost optimization, and performance efficiency. AWS uniquely adds a sixth pillar for sustainability, while Google integrates Site Reliability Engineering and DORA principles into its guidance. To address specific technical needs, providers offer lenses or perspectives for domains such as artificial intelligence, machine learning, and serverless computing. Architects use these resources to evaluate trade-offs, identify risks, and ensure their cloud environments align with long-term business goals. Professionals can also access specialized tools and assessments to continuously measure and improve the maturity of their digital workloads.