A name in dappy may be associated with many IP servers, this allows you not to have a single point of failure for your web application. You may maintain 3 servers at 126.96.36.199, 188.8.131.52 and 184.108.40.206 which all listen to the same host, or a different one. The browser will iterate until a request succeeds.
The only IP addresses the web application (tab) context will ever be able to reach are the ones linked with the name (whitelist). Neither the web server nor the user can alter this whitelist.
Primary and secondary servers
The list of servers associated to name "mysite" in dappy browser