your HTTP request from 3.231.229.89 at 2019-12-07 22:09:17:

GET /http-request 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: Sat, 16 Nov 2019 23:19:38 GMT
Host: fex.rus.uni-stuttgart.de
Connection: Keep-Alive
Accept-Encoding: gzip