Traffic is not like the high-score on a video game where you push a couple of buttons and numbers automatically generate. Think of your site like a store. Just because you build by the road, doesn't mean you'll get lots of shoppers. If you've got boxes and junk blocking the door and the aisles, how can they get in? If you have next-to-nothing on your shelves from never restocking or buying much in the first place, you probably won't have those shoppers return. And if you're selling prom dresses, don't advertise your products in a biker bar!
So, like they said:
- Code it right, so people and bots can navigate easily.
- Have good content and update often.
- Advertise appropriately.