What is Direct Traffic according to Google?

In Google Analytics, "direct traffic" is referred to as website visits that resulted from users typing your URL into their browser directly or through bookmarks. Google Analytics will classify your traffic as direct traffic if it is unable to identify the source of it.

• "No information about the referral source is available, or when the referring source or search query has been specified to be ignored," according to Google, is considered direct traffic. It is, in other words, traffic that originates from a source that is difficult to trace.