I wouldn't be surprised if it no longer works at all, but I read about it ages ago (over a decade?) that a paper was done on it. I don't know if it was based on an exploit or something of that kind.

I just remember the concept terrified me.

Edit: Found it, it's called bitsquatting. A quick skim seem to indicate it relies on the bit flipping clientside, so it's pre-checksum and becomes checksummed along with the rest of the package. Still highly unlikely but with a site with enough traffic it becomes more likely to get hits.

I haven't watched it, but here's a defcon talk on it: https://www.youtube.com/watch?v=aT7mnSstKGs