Why does the Internet Archive only work with a US IP address?

Important to note that just because Archive Today doesn’t comply with takedown requests, that shouldn’t automatically elevate them to being better than anyone else. Ask Wikipedia, where they decided to remove all links using them because of evidence that they were tampering with certain page saves and including malicious script behavior. I would be inclined to agree with Expert4870’s reply in that we need more independent page archiving projects though, since there is too much centralization that makes it too easy to censor stuff right now.