About: http://webisa.webdatacommons.org/400437721

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Posts 1,159 You can check the 'document.referrer' in javascript to get the previous page, from which you can then check to see if this page was on your site or an external URL such as google.
http://www.w3.org/ns/prov#wasQuotedFrom	webdeveloper.com