Last 7 days, Airframes (https://airframes.io) has had almost 1 million unique visitors.
This isn't page views, it isn't sessions, it is unique visitors to the site in the last week.
Of course, it's not from efforts in the last week, or even the last year. This is a site that I've been working on for many years. And it has had plenty of press organizations writing about it (especially recently) and in a world as chaotic as it is right now, it has presented a unique opportunity.
The site isn't really just a site either. It's a platform. A community hand built on Discord and some on X, and a LOT of late hours and frustrations over the years. Members of the community contribute data, but also sometimes their time, and it really make it an effort of many.
I'm sharing this because your app, product, site, or effort could also turn into this. You could also have this kind of traffic with enough attention, effort, care and love. But I will say, as someone with a lot of things that I work on, most things won't end up this way if you don't do those things.
The things you put the most attention, time, effort, and passion into will succeed.
Don't do things just because they can make money. Do things that you care about, and you'll put more effort in than a normal person would.
If the stars align, you'll have success. Probably more than I do with Airframes!