Comment by arewethereyeta

https://visitorquery.com - my startup. I'm curious if they use proxies or not. Datacenter or residential, my service can detect them. You have a free plan which should allow you to have a better understanding of your traffic, at least from this perspective. Shenanigans with payment gateways usually involve proxies so I'm almost certain you can use it to detect > block the abusers before they reach the checkout page.