Yes, exactly. Or let's say I make middleware for a particular piece of software. I can use BuiltWith to find companies that might buy my middleware because they

Yes, exactly. Or let's say I make middleware for a particular piece of software. I can use BuiltWith to find companies that might buy my middleware because they're using that software. Or when I'm choosing between adding support for Software X versus Software Y, I can ballpark the market size for each and factor that into my decision. It's basically market research for me.