Fastly is an edge cloud platform combining a content delivery network, edge compute and security. The CDN supports real-time configuration changes and offers real-time traffic logs and observability from origin to edge. Its Deploy product runs code close to users on a serverless platform, and its Secure product covers a next-generation web application firewall, bot management, DDoS protection and API security, with an optional 24/7 managed security service. A Managed CDN variant runs Fastly's CDN inside a customer's own network. The caching layer is built on a heavily modified version of the open-source Varnish software.
Fastly is a publicly traded company headquartered in San Francisco, California, so its services are subject to US law, including the CLOUD Act. The platform itself is proprietary and delivered as a managed service; only the underlying Varnish technology is open source. The sources consulted do not give data hosting regions, so European organisations should ask which points of presence process their traffic and logs, and under which contractual terms.