digraph blind_doh_proxy {
  bgcolor=transparent;
  splines=line; // straight through; this is a feature
  // using xlabels so splines don't "reach out" for the label
  // https://forum.graphviz.org/t/force-straight-edges-above-through-a-node/741

  edge [fontsize="9" fontcolor="red" color="red"]
  client -> "dns.google" [xlabel="HTTPS to Google\nthrough proxy"]
  client -> "cloudflare-dns.com" [xlabel="HTTPS to CF\nthrough proxy"]
  
  edge [color="indigo" fontsize="9" fontcolor="indigo" dir=both arrowhead=dot arrowtail=dot] 
  client -> "haproxy" [xlabel="TCP to proxy"]
  "haproxy"  -> "dns.google" [xlabel="TCP to dns.google"]
  "haproxy"  -> "cloudflare-dns.com" [xlabel="TCP to cloudflare-dns.com"]
}