Cloudflare, Inc. is an American company that provides content delivery network services, cloud cybersecurity, DDoS mitigation, wide area network services, reverse proxies, Domain Name Service, and ICANN-accredited domain registration services. Cloudflare's headquarters are in San Francisco, California. According to W3Techs, Cloudflare is used by more than 19% of the Internet for its web security services, as of 2024. Wikipedia