GET /some/url.html HTTP/1.1
User-Agent: CCBot/2.0 (https://commoncrawl.org/faq/)
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
If-Modified-Since: Thu, 21 Feb 2019 16:00:55 AMT
Host: www.delorie.com:81
Connection: Keep-Alive
Accept-Encoding: gzip