The bounce rate, in web analytics, is the percentage of visitors who enter and leave a single page, e.g. a Landing page, without any further action.
In Piwik PRO, you calculate bounce rate by taking the number of bounces divided by the number of sessions in a given period. However, if the visitor completes a set goal or buys a product (completes a conversion), the bounce will not be counted, even though the visitor viewed only one page.
Bounce rate = (Bounces / Sessions) * 100%
Bounce: is a session during which a visitor viewed an entry page but didn’t continue to another page view, goal conversion, or ecommerce conversion.
The bounce rate gives you information about the success of a single web page as a landing page. High bounce rates indicate the landing page might need some improvement. This metric helps to verify if the visitor’s intent was met when they came to the website via a search engine. It can also tell you ifad campaigns match the expectations created by the message on the landing page.
High bounce rate can also be a good sign. For instance, a visitor could find the phone number they were looking for on the first page and leave it right away. In this case, the visitor would have achieved their goal, but the bounce rate for a group of such visitors would be 100%.
More about bounce rate on the Piwik PRO blog and help center: