Following a short Q&A Session on Webforumz.com, Google explained a little more about bounce and what it means and how it is calculated. In summary:
Bounce has no bearing on time. A person can visit your site and leave the one page open for a week. If they then close the browser window having not made another click – that visitor has bounced.
The definition of a bounce from Google is ‘where a visitor lands on a page and completes no other action’. By this definition, a visitor can land on your page and immediately click through to another page then leave your site – they are not recorded as a bounce.
Where many web owners may fall into a trap is if they have use the ‘open in new tab/window’ option in their links. A click on this link will generally not register so although a visitor has seen several of your pages, the first page will still register as a bounce.
If your unlucky, they may visit ten of your pages, opening each in a new window. Each page will then register a new visitor and if they leave, that page will register another bounce. Ten pages, ten bounces.
Do bounces affect your rankings. Simple reading would have you thinking no – they wont affect your rankings. I still have my doubts in this department. However;
really don’t have specific guidance on bounces per se; rather, the key for webmasters is to make users happy so they find your site useful, bookmark your site, return to your site, recommend your site, link to your site, etc. Pretty much everything we write algorithmically re: web search is designed to maximize user happiness, so anything webmasters do to increase that is likely to improve their site’s presence in Google.
That is the word from Google.- Make your site better for your visitors and and you will rank well.