what is the core seo?????

[MarilynHyland]

All of us do SEO for our website and want to rank it top on Google, but all sites do not get a good position in fact some site's stay at bottom. This happens because of bad SEO. So that some marketers use a new technique callsed core SEO to rank their sites. In this type of SEO we do all tasks same as original. Like if we are publish blogs, then use best quality content in the blog like real publishers.