Get a list of available locations

You can easily see which countries are online for targeting by requesting the following URL through the proxy: http://api.proxyrack.net/countries

Example: 
curl -x premium.residential.proxyrack.net:10000 -U username http://api.proxyrack.net/countries

Result: 

[
  "VN",
  "TH",
  "HK",
  "PH",
  "GR",
  "CN",
  "ZA",
  "SY",
  "TR",
  "IQ",
  "RU",
  "AE",
  "SG",
  "CO",
  "IN",
  "TW",
  "UA",
  "FI",
  "DE",
  "US",
  "BE",
  "GB",
..etc
]

You can then see which cities are available for targeting by requesting the following URL through the proxy and simply replacing the country code:
http://api.proxyrack.net/countries/US/cities

Example:  
curl -x premium.residential.proxyrack.net:10000 -U username http://api.proxyrack.net/countries/US/cities

[
  "Black River Falls",
  "Hamilton",
  "Pasadena",
  "Danville",
  "Slidell",
  "Greensboro",
  "Colorado Springs",
  "Santa Maria",
  "Marysville",
  "Kenosha",
  "Hartford",
  "Brawley",
  "North Branch",
  "Mansfield",
  "West Haven",
  "Ormond Beach",
  "North Bend",
  "Shreveport",
  "Evansville",
  "Milton",
  "Caledonia",
  "Clare",
  "The Villages",
  "Orting",
  "Odenton",
  "Jackson",
  "Bellwood",
  "Tappahannock",
  "Hampshire",
  "Mesquite",
  "La Habra",
  "Carroll",
  "Charlotte",
  ..etc
]