You could see urls like "/b/app-preview?token=xx", "/b/app-mobile/preview" in google analytics pages visited column. What does these URLs mean ?
Actually these are the URLs executed by the blogger (one who blogs) itself.
When he/she clicks on "Preview" option to see their blog post preview before publishing, these URLs are executed !!!
These URLs are NOT EXECUTED by any bots, or any other crawlers..