Ignore this box please.
Search syntax
s:d     sort by date
r:uk     uk region
site:     domain search
\ search     first result

r:n    turn off region
!a search     search amazon
site:uk     uk pages
f:     find files
t:     within title
b:     within body
More explanation...
Your user agent: CCBot/2.0 (http://commoncrawl.org/faq/)
Other HTTP headers
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding: x-gzip, gzip, deflate
Accept-Language: en-us,en-gb,en;q=0.7,*;q=0.3
Host: duckduckgo.com
User-Agent: CCBot/2.0 (http://commoncrawl.org/faq/)