Cloudflare combines a few tools that you would need to cobble together yourself if you wanted the same experience from another provider. E.g., if you wanted to

Cloudflare combines a few tools that you would need to cobble together yourself if you wanted the same experience from another provider. E.g., if you wanted to use AWS services instead, you could stack WAF, CloudFront, and Route53 to get a firewall, CDN, and DNS provider. If you only need some of the Cloudflare stack (maybe you need a good firewall but don't care about a CDN?), then you can only use the pieces you need.