Yes, that along with dealing with Last-Modified, If-Not-Modified, ETag, and other similar HTTP Headers is what is meant by HTTP Caching. From what I can tell V

Yes, that along with dealing with Last-Modified, If-Not-Modified, ETag, and other similar HTTP Headers is what is meant by HTTP Caching. From what I can tell Varnish uses these same concepts to do what they do (caching HTTP reverse proxy). See * https://tools.ietf.org/html/rfc7234#section-1 https://tools.ietf.org/html/rfc7234#section-1 * http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html * https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching_FAQ https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching_FA...