Cloudflare D1 Overview D1 is Cloudflare's serverless SQLite database — runs at the edge alongside Workers. Zero connection overhead (it's in the same data center as your Worker), SQLite query syntax, automatic replication, and pay-per-query pricing. Perfect for read-heavy workloads, content sites, and applications where latency matters. When to Use - Building on Cloudflare Workers and need a database - Read-heavy applications (blogs, content sites, APIs) - Want SQLite simplicity with global distribution - Serverless applications with no connection pooling headaches - Edge-first applications w…