Bounce rate is a matter of determining the amount to which visitors are abandoning with your site. Analytics give you result of your website's bounce rate in percentage of total visits. High bounce rate means visitors aren't able to find out the information for which they visit your website, but is doesn't mean that always high bounce rate down your site in the SE, it depends on number of visits on your website. You can also determine any errors on specific pages with high bounce rate by evaluating the reasons why they are leaving from that specific page.
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