How many people who reach your web page leave again before the page even finishes loading? To find out you need a way of counting both how many people start downloading your page and also how many people finish downloading the page. You are never going to be able to obtain complete figures for this but here is one way that at least makes sure that the subset of your visitors that it can count is the same for both counts.

Counting Lost Visitors

Tags: count, html, javascript, visitor