You mentioned that you don't believe that these visitors are a result of your SEO, so I wanted to ask - have you done any advertising at all, or do you have existing social media where you promote your store?
If you promote on social media, it is likely that the traffic comes from followers from the US. As long as you keep promoting it there, they will continue visiting. However, if you think you would like to block customers from that region from viewing your store, you could look into the Locksmith App. This app allows you to limit customers from viewing your store based on a variety of conditions such as their IP address, country, or even specific customer tags if you have certain individuals that you want to limit.
As for getting more UK visitors, the quickest way to do this is through targeted ads. We have integrations with Google and Facebook advertising, where you will be able to set you audience and promote your store to UK customers only. I have some resources to help you get started below if you haven't done this before:
Is there a reason that you would like to sell to UK customers only right now? Also, please tell me a little bit more about your business, I would love to see what else we can recommend here.
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