Change is the only constant. If we talk about SEO (Search Engine Optimization), there have been a lot of changes as well. PageRank is now dead. Google is not going to update Toolbar PageRank, but the important point is the usage of good keywords and trust flow. Created by Majestic SEO, trust flow determines the quality of the site based on its links with other sites. For Google, it is very important to have great content and quality links. But currently, it is more focused on providing high quality linking and topical rankings. Topical ranking appeals to value- based search system. To summarize, trust flow has following characteristics: Page Rank may be dead, but keywords live on, Quality is more important than quantity, Trust flow needs to be measured. Read more: https://www.entrepreneur.com/article/269574