Exemple d''information sur les entête de requête
host
pstage.uvsq.fr
accept-encoding
x-gzip, gzip, deflate
user-agent
CCBot/2.0 (http://commoncrawl.org/faq/)
accept
text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
If-Modified-Since
Sun, 25 Feb 2018 07:51:12 GMT
connection
close
