Cloudflare sits in front of your site or app and handles traffic at the edge. That means your visitors can be routed through a nearby data center for faster delivery, while DDoS mitigation, TLS, DNS, and caching happen before traffic reaches your origin. For indie developers and small teams, the free plan is attractive because it lets you start with infrastructure that already includes security and performance.
Cloudflare also has a strong keyword footprint around free SSL, free security, free static hosting, edge APIs, and low-cost object storage. That makes it a strong candidate for SEO landing pages that target “what is Cloudflare”, “Cloudflare free plan”, and “Cloudflare free services” queries.