Most visitors decide within a few seconds whether a page is worth their time. A five-second test checks whether your hero section (the first section visitors see) gets its message across in that short window.
Show your hero to someone for five seconds, then hide it and ask them what you do. If they can’t say, or they describe something different, the headline probably needs work. It’s a quick way to check your copy and your design’s hierarchy before launch, and you can run it with anyone who hasn’t seen the page before.
