Cloudflare is the leading web performance and security platform, used by millions of websites worldwide including StackList itself. It provides CDN, DNS management, DDoS protection, SSL/TLS encryption, and bot management — all with a generous free tier. UK businesses benefit from Cloudflare's London data centres and GDPR compliance through its Data Processing Addendum. The free plan covers most needs for small to medium sites, with Pro (£18/month) adding advanced security features and faster performance.