I have a server/gateway outside the US and I prefer to use my own caching dns, since the ISP DNS sometimes is slow. Here in the US I configured my home router

I have a server/gateway outside the US and I prefer to use my own caching dns, since the ISP DNS sometimes is slow. Here in the US I configured my home router to use the google 8.8.x.x servers since my cable operator was hijacking the DNS queries, that is, until I send them an email kindly asking to remove me from their redirecting service. I assume that, sometime in the future, ISPs outside the US will start doing the same redirection, unless there's some law that prohibits them of doing so.