Update: Read our latest article on impression testing from June 2016 The five-second test (clueapp, fivesecondtest) is a very simple method for capturing a user’s first impressions about the website.  We did a few experiments with this test on various websites (some ours, some not).  In our experiments, five seconds was really not much time to register a value proposition – it was just enough for the brain to register.. Read More