About: http://webisa.webdatacommons.org/340486837

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	Detecting Firewalls and WAFs is also simple; just send a well-known attack using a remote host or an anonymous proxy such as Tor and see if the connection is terminated or if future connection attempts are blocked.
http://www.w3.org/ns/prov#wasQuotedFrom	linux-magazine.com