CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.
Polipo - A small and fast caching web proxy (a web cache, an HTTP proxy, a proxy server).
CDN77 - Content Delivery Network - website speed acceleration with CDN77. 28+ PoPs, Pay-as-you-go prices, no commitments.
ExaProxy - ExaProxy is a a high-performance non-caching proxy.
KeyCDN - KeyCDN is a high-performance Content Delivery Network (CDN). Lowest price globally at $0.04/GB with HTTP/2 Support and free Origin Shield.
Privoxy - Privoxy helps users to protect their privacy.