SEO is a fast changing discipline.
What worked 5 or 10 years ago might be completely unnecessary these days or even bad for your site’s ranking.
Thus leading search industry publications publish the most probable Google ranking factors each year. Nonetheless many webmasters prefer to stick to the past or follow wrong advice from bloggers who just repeat SEO myths.
In recent years, Google has not only included lots of new media types into Universal search results; it has also added numerous ranking factors while rethinking many old ones.
I made a list of new or current ranking factors that get underestimated by webmasters and neglected because of this. At the same time, I included those often old school ranking factors webmasters tend to overestimate the power of. These may not work anymore, or may even hurt your site in Google’s search results.