Case Study: B2W Digital achieves 75% cloud cost savings with Spot (Spotinst Elastigroup)

B2W Digital, Latin America’s Largest Online Retailer, Cuts Cloud Costs By 75% With Spotinst

B2W Digital, Latin America’s largest online retailer, faced rising cloud costs and inefficient use of hundreds of Reserved Instances while supporting dozens of sites and mobile apps with over 200M monthly visitors. To avoid risky architecture overhauls, B2W evaluated Spot and its Spotinst Elastigroup solution to see if it could safely leverage Spot Instances without downtime.

Spot’s Elastigroup autonomously managed B2W’s elastic VMs and MapReduce workloads, using features like Automatic RI Utilization to fully consume reserved capacity before falling back to On‑Demand or Spot. Within months B2W quadrupled Spot‑managed instances, reached ~199k monthly Spot Hours and fully utilized ~200k monthly RI Hours, and reported roughly 75% savings on those workloads, with plans to migrate many more workloads to Spot.

B2W Digital

João Machado

IT Director