Throwaway sites are almost always doorway sites. They are web sites built by spammers
to provide a short-term and artificial boost to traffic. Once their traffic objectives are
achieved they are often switched off or left to decay – hence throwaway. Throwaway
sites are stuffed with links and keywords to attract and then re-direct traffic to a target
web site. Typically, the spammers retain ownership of the throwaway domain. The
spammers’ clients initially receive large amounts of traffic. But once the throwaway site
is switched off – or thrown away – the traffic comes to an abrupt halt and the clients
business suffers. The clients are then effectively blackmailed into spending vast sums to
retain traffic. The target web site receives no long term ranking benefits.