If you wish to be a well-trained web marketer, you should learn how to utilize the metrics of your on-page SEO. This is a way to evaluate how customers reflect on your website and the services or products that you offer. It determines the impact of the website towards your potential clients. 

At the start of the SEO era, you can easily rank key phrases with a bunch of exact match anchor texts in your list. But when Panda and Penguin algorithmic changes began to arise, it became difficult for webmasters to rank their keyword phrases on top of the search engine ranking positions.