*You know Its not always about the localhost or the 127.0.0.1 or the vcap.me. Sometimes its just about the http://[::1]*
Thats an IPv6 loopback address .
SImilar domains that resolves to localhost: localtest.me, lvh.me, fuf.me, yoogle.com.
These sites have just kept thier A record to 127.0.0.1.
This knowledge can be used while exploiting SSRF to bypass filters.