The idea of “good SEO” differs from business to business.
The simplest answer is if your organic traffic is improving over time, then you have good SEO.
If you have Google Analytics setup on your site, you can easily track how much organic traffic is coming into your site. At it’s most basic level, SEO’s primary goal is to improve the amount of organic traffic visiting your site.
But there are other considerations to take into account. For instance, maybe you’re driving traffic but no one is buying anything or submitting contact information. Maybe you’ve got good content but your site is taking forever to load so everyone is bouncing.
In my experience, even high performing sites still have pain points that can be solved with improving SEO. Chances are, if you’re asking the question, you might need some SEO assistance, so feel free to get in touch today.