Yup! In fact, you're reading this because you probably searched "are keywords relevant to seo in 2018" or something similar and since there's almost no other sites with that search phrase in the title and url this page ranks.
This is the power of keyword research. Long tail KW is the key to getting great rankings and driving real traffic to not only your clients sites but to your PBN sites are well.
I'm adding a random gif below so there is more rich content on this page. That also helps.
Want to learn how to rank your website using less links while getting real fast results? Focus on search and finding what people are searching for.