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 If-Modified-Since: Mon, 20 Aug 2018 08:23:46 UTC Host: www.delorie.com:81 Connection: Keep-Alive Accept-Encoding: gzip