What DFW actually means for your website
Not civic pride. There are real, practical consequences to operating in a metro shaped like this one, and they change what your website has to do.
It is polycentric, and that changes the search
Dallas-Fort Worth is not a city with suburbs around it. It is a sprawl of centres, and there is no single downtown that everything orbits. The practical effect: your customers are not searching for a place, they are searching for whoever can get to them. Proximity is doing a lot of the work in local results, and in a region this size, proximity to a point on a map is a much weaker fact about you than the area you actually cover.
Most businesses here serve several suburbs, not one
The high street model, where a business belongs to one town, barely describes this place. A trades business or a professional service here typically covers a spread of suburbs across a long drive. That is a mismatch with how a lot of small business websites are written, because they are written as though the business belongs to one town. If your customers are spread out, your site needs to be honest and clear about the actual footprint, rather than nominating a headquarters and hoping.
"Near me" is doing something specific
When somebody types "near me" out here, the distances involved are not walking distances. They mean "whoever is close enough to actually turn up". If you are a service-area business, that is a question about your service area, not your address, which is exactly why the service-area configuration matters more here than it would somewhere compact.
Your competitors are close, and there are a lot of them
The upside of a large metro is a large market. The downside is that so does everybody else have one. In a small town you might rank because you are the only option. Here you are being compared, on a phone, against a list. That raises the bar on the boring things: whether your profile and site agree, whether the site loads, whether it works with one thumb. The differences that decide it are unglamorous.
The growth cuts both ways
Plenty of new customers arrive here who have no idea who is any good, which is genuinely a chance to be found by people with no existing loyalty. It also means new competitors, and the ones arriving now generally arrive with a website already sorted. Being the established business with the neglected site is not the position it once was.