This Session 8 video from Data Center Guru introduces data center due diligence as the first step of the lifecycle, explains who needs it and when, and breaks down key types: site/location due diligence before design, techno?commercial due diligence for investments/JVs/M&A at any stage, and periodic health?check due diligence for live facilities or pre?migration risk evaluation. It details how site/location due diligence assesses environmental and man?made hazards, security, soil and air quality, building suitability, and the availability of external services like power, fiber diversity, water, emergency services, skilled vendors, plus site accessibility for construction and operations. The process flows from data collection and specialist measurements to analysis and documented recommendations that inform design inputs, risk mitigation, and go/no?go decisions, with clarity on residual risks that cannot be engineered out. The session closes by positioning due diligence as a must?do for building right the first time and sustaining outcomes through continuous improvement, with later sessions covering techno?commercial deep dives.