Renouncement – SEO WIKI
A opt-out is a visit in which the user viewed only one page and / or spent no more than 15 seconds on it.
To view failures in the Metric, click on the corresponding tile on the main page:
To find out the bounce rate in Google Analytics, you need to look at the audience overview:
The normal failure rate (in both Metric and Analytics) is determined separately for each niche.