Eye-tracking studies have argued for two decades that visitors decide whether to stay or bounce inside the first viewport. Whatever happens in the body copy, in the case studies further down, in the pricing table — none of it matters if the H1 didn’t earn a second glance. So the most read sentence on any landing page is usually a phrase the founder wrote in fifteen minutes, never changed, and assumes is fine.
We wanted to know what separates the H1s that earn the second glance from the ones that don’t. So we pulled 1,200 H1 headlines from the roast.page dataset — every page our analyzer had scored 35 or higher (filtering out broken pages) across six industries — and hand-classified them along three axes. Two reviewers per page, third reviewer breaks ties, 87% agreement. Then we matched each H1 to its corresponding page score.
Four patterns emerged. The first is the one most landing-page writers think they already know.