5 bb [ label = "Bob Server" ];
7 ... [ label = "Webfinger RFC 7033" ];
9 --- [ label = "optional for webfinger url tpl" ];
10 ... [ label = "RFC 6415" ];
11 a -> bb [ label = "GET /.well-known/host-meta" ] ;
12 bb -> a [ label = "application/xrd+xml" ] ;
16 --- [ label = "mandatory for actor profile url" ];
17 a -> bb [ label = "GET /.well-known/webfinger?query=acct:bob@example.com" ] ;
18 bb -> a [ label = "application/jrd+json" ] ;