Version 4.2 of the program allows businesses to interact with visitors to their website via a live chat facility.

Businesses can also watch visitors to their site in real time, ChannelInfo.net reported.

Stephen Parker, developer at Parker Software, said of the product:

"Most website visitors are like ghosts, they are invisible to you whilst they are on your website.

"This software enables companies to invest in pay-per-click marketing, for instance Yahoo! and Google Adwords, to see exactly what visitors are looking for on their website - even down to the specific term used in the search."

A free trial of the new software is available.