Another domain name pointing to my meteor web app domain

I see my meteor web app at another domain I don’t host and all working fine.

I know this from my server log. My server log every action in FAKE.COM domain, and of course eating my server resource.

I thought this is due to DNS pointing, but when I move to another server, and of course IP address would also be changed, it didn’t help. The FAKE.COM domain still pointing to my meteor web app and also eating my server resource.

Can I redirect the FAKE.COM to MYDOMAIN.COM via WebApp.connectHandlers? Or maybe another solution?

Thank you for any help