Moreover, anyone who has looked at advice on proper citation form since the mid-1990s knows that it's standard in many citation rules to include the download date (file access date) when the author saw the online source in the citation. That is precisely because online documents are particularly likely to change over time.
http://www.chicagomanualofstyle.org/tools_citationguide.html
Come to think of it, that's also how I look for the good startup companies amidst all the bad: When you find the ones run by people who understand what they're doing, you find a satisfaction in their output that you don't find elsewhere. 280North comes to mind, as does Contrast.io.
Does not compare in anyway to an interview and previous knowledge.