Bounce rate is an Internet marketing term used in web traffic analysis. It represents the percentage of visitors who enter the site and then leave ("bounce") rather than continuing to view other pages within the same site. Bounce rate is calculated by counting the number of single page visits and dividing that by the total visits. It is then represented as a percentage of total visits.
Bounce rate is a measure of "stickiness." The thinking being that an effective website will engage visitors deeper into the website thus encouraging visitors to continue with their visit. It is expressed as a percentage and represents the proportion of single page visits to total visits.
Bounce rate (%) = Visits that access only a single page (#) ÷ Total visits (#) to the website.[1]