You can set a whitelisted IP after the purchase, on the proxy overview page.

1. If you don't know your own public IP, you can find it at https://whatismyipaddress.com or you may just Google "what is my IP".
2. Enter the IP that you want to whitelist into the "IP Whitelist" field or select "Set to current IP: xx.xxx.xxx.xxx" 
   Please note, that you can add up to 3 whitelisted IPs, except for mobile proxies - only 1 whitelisted IP is allowed.
3. Select all the other peripherals you need and press Next.

How to change whitelisted IP

Once you purchased a proxy and want to change the whitelisted IP, you need to:

1. Press on your recently purchased proxy in overview window.
   
2. In Authentication section next to Whitelisted IPs press on circled arrows to change / add / remove whitelisted IPs.
   
3. Click "Update".
   

You will see a success message after successful IP whitelist change. Happy browsing!

Please note that Residential rotating proxies plan do not have IP whitelist option.