Backlink functionality is what counts here. Backlinks are incoming links to a website or web page. In the search engine optimization world, the number of backlinks is one indication of the popularity or importance of that website or page. Outside of SEO, the backlinks of a webpage may be of significant personal, cultural or semantic interest: they indicate who is paying attention to that page. In basic link terminology, a backlink is any link received by a web node from another web node. Backlinks are also known as incoming links, inbound links, inlinks, and inward links.
Search engines often use the number of backlinks that a website has as one of the most important factors for determining that website's PR or search engine ranking. Websites often employ various techniques,search engine optimization to increase the number of backlinks pointing to their website. There are several factors that determine the value of a backlink. Backlinks from authoritative sites PR7 or hgher on a given topic are highly valuable. If both sites have content geared toward the keyword topic, the backlink is considered relevant and believed to be have strong influence on the search engine rankings of the webpage granted the backlink. A backlink represents a favorable vote for the receiving webpage from another granting webpage.
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