Cloudflare sits between internet users and the websites, apps, and corporate networks they connect to. When traffic passes through its network, Cloudflare caches content close to users, filters out attacks such as DDoS floods and malicious bots, and can run customer code at the edge. It says roughly 20% of websites use its services. Founded in 2009 and headquartered in San Francisco, the company went public on the NYSE in September 2019 and had 5,156 full-time employees at the end of 2025. The company is headquartered in San Francisco, California.
Cloudflare makes money by selling subscriptions and usage-based services that run on a single global network. Millions of websites use a free plan; paying customers move up to Pro, Business, and Enterprise plans for advanced DDoS mitigation, web application firewall, bot management, and support. Enterprises also buy Cloudflare One, a Zero Trust and SASE suite priced per user that replaces corporate VPNs, plus email security. A fast-growing developer platform (Workers, R2 storage, D1, Workers AI) bills on usage. Because every server runs the full software stack, new products ride on infrastructure Cloudflare already operates, which keeps non-GAAP gross margin in the mid-70s (75.8% in 2025).