Branching is page based. You can configure your survey so that you decide what page respondents see after they click Next on each survey page. You can branch to specific question pages in your survey, the thank-you page, the alternative thank-you page, or a URL. If you branch to a URL, you can send respondents to other surveys or websites.
A branch consists of one or more conditions. A condition is a set of criteria. If the criteria are met, then the condition is true. If the conditions of a branch are met, then the branch is true and respondents will be sent to target pages set in the branch.