Google’s PageRank is one of the metrics that started it all. It was present in that very first research.
Google is now relying on behavioral data that it gets from searchers, Chrome users, Android, etc. as the primary way.
For better or worse, the number and quality of your backlinks are still one of the most important ranking.
Over the past few years, local SEO has become one of the biggest buzzwords in the marketing world. Studies.