Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.
Squid Proxy - Website Content Acceleration and Distribution. Thousands of web-sites around the Internet use Squid to drastically increase their content delivery. Squid can reduce your server load and improve delivery speeds to clients.
Hazelcast - Clustering and highly scalable data distribution platform for Java
Polipo - A small and fast caching web proxy (a web cache, an HTTP proxy, a proxy server).
Aerospike - Aerospike is a high-performing NoSQL database supporting high transaction volumes with low latency.
AdGuard - Surf the Web Ad-Free and Safely. Shield up!