| e-commerce seo | SEO that is focused on increasing traffic and sales for e-commerce related websites that sell products online. |
| unnatural link | Any links Google identifies as suspicious, deceptive, or manipulative. An unnatural link can result in Google taking manual action on your website. |
| uncertainty principle of seo | Noun phrase. The two states of a Web document (indexed and relevance to a given set of queries) cannot be determined at the same time. The more queries to which a page is known to be relevant, the less information about the pages indexing status can be determined. The more information about a pages indexing status that is known, the fewer queries to which the page is relevant. |
| bad neighbor | A bad neighbor, in SEO context, is a site with low quality and/or illegal content. Link to bad neighbors adversely affect the rank of a website. |
| pagerank | A component of Googles core algorithm. It is a link analysis program that estimates the importance of a web page by measuring the quality and quantity of links pointing to it. |
