HTTP_USER_AGENT => CCBot/2.0 (https://commoncrawl.org/faq/)
HTTP_ACCEPT => text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
HTTP_ACCEPT_LANGUAGE => en-US,en;q=0.5
HTTP_IF_MODIFIED_SINCE => Thu, 17 Oct 2019 20:58:42 KRAT
HTTP_HOST => students.cs.uri.edu
HTTP_CONNECTION => Keep-Alive
HTTP_ACCEPT_ENCODING => gzip