You will need to use proxies which match your server and desired site.
For Shopify stores we suggest Chicago, New York or Ashburn DC proxies.
For Mesh stores we suggest general UK DC based proxies [Manchester/London for example].
For Footsites we suggest general US DC based proxies.
For Supreme we suggest simply using your home IP or if you need to use proxies then residential are favourable.
Site24x7 is a useful tool to check website server locations yourself, simply type in the URL for the website you wish to check and it'll tell you the where the server is hosted.