Varnish Exemple for CACHE and Optimisation
           Varnish Optimisation cache          #  # This is an example VCL file for Varnish.  #  # It does not do anything by default, delegating control to the  # builtin VCL. The builtin VCL is called when there is no explicit  # return statement.  #  # See the VCL chapters in the Users Guide at https://www.varnish-cache.org/docs/  # and https://www.varnish-cache.org/trac/wiki/VCLExamples for more examples.    # Marker to tell the VCL compiler that this VCL has been adapted to the  # new 4.0 format.  vcl 4.0;    # Default backend definition. Set this to point to your content server.  backend default {  .host = "127.0.0.1";  .port = "8080";  }    sub vcl_recv {  # Happens before we check if we have this in cache already.  #  # Typically you clean up the request here, removing cookies you don't need,  # rewriting the request, etc.      # Happens before we check if we have this in cache already.  #  # Typically you clean up the request here, removing cookies you ...