Someone reads your page properly, closes the tab, and is gone for good. It happens on every website, including yours. Most of those visitors were not saying no, they were saying not yet, and without a way to stay in touch, not yet usually means never. There is one small, specific change that turns not yet into a name on your list. It costs nothing, takes about a week to test, and works whether you are just starting out or have been running your business for years.