Edge Config, a newly introduced ultra-low latency data store by Vercel, enables rapid, globally distributed reads for configuration data, suitable for tasks like A/B testing and feature flag management. Unlike traditional pull-based CDNs, Edge Config uses a push-based approach, actively replicating data to all regions preemptively, ensuring instant availability without requiring deployments. Data is structured as JSON for fast, infrequent writes, with most read operations completing in under 5 milliseconds. This storage product enhances performance by minimizing network requests, as demonstrated by Speedway Motors, which saw improvements in Core Web Vitals and SEO through its use. The API allows for quick querying of configuration values, and users can manage configurations across different accounts using connection strings. Edge Config is generally available, with integrations like Statsig and HappyKit supporting its deployment.