The percentage of users who visit your website and leave without visiting any other page on your site.
User bounce rate as a metric can be used to evaluate landing page and content quality and relevance, as users will leave pages that don’t meet their needs or expectations. Search engines use bounce rate as a ranking signal when evaluating whether a page meets the user’s search intent or not.
High bounce rate is not always bad for SEO, however. Users on some pages, like blog articles, will leave after consuming the content.