Obviously depends on the "apache/nginx/whatever" side, especially if "nginx" can do everything varnish does in your scenario and moreso when "whatever" includes in-app caching and load balancing strategies.
Varnish grew legs as part of saving the clusterfuck that is WordPress. Custom cache rules up a layer from a broken old code base is AWESOME. Maybe also a red flag.
Varnish grew legs as part of saving the clusterfuck that is WordPress. Custom cache rules up a layer from a broken old code base is AWESOME. Maybe also a red flag.