Bluehost is a large web host known for its WordPress expertise, variety of “one-stop-shop” services, and bargain prices.
Endurance Page Cache adds basic file-based caching to WordPress.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
ShareThis provides free engagement and growth tools (e.g., share buttons, follow buttons, and reaction buttons) for site owners.