$ dig www.nyu.edu +noall +answer -t A

  ; <<>> DiG 9.10.6 <<>> www.nyu.edu +noall +answer -t A
  ;; global options: +cmd
  www.nyu.edu.            1       IN      CNAME   dsvdfvx64.github.io.
  dsvdfvx64.github.io.    2995    IN      A       185.199.109.153
  dsvdfvx64.github.io.    2995    IN      A       185.199.110.153
  dsvdfvx64.github.io.    2995    IN      A       185.199.111.153
  dsvdfvx64.github.io.    2995    IN      A       185.199.108.153

Looks like someone added a CNAME record pointing https://www.nyu.edu to https://dsvdfvx64.github.io, but https://github.com/dsvdfvx64 is 404. I wonder how one can use GitHub Pages while the corresponding username doesn't exist.

This is awful. Who does this? Racist screeds and divisiveness seem to be growing unchecked and it's really worrying.

Posted later, more comments: https://news.ycombinator.com/item?id=43447308