HISTORY SEO

According to Danny Sullivan, search engine optimization is a term first used on July 26, 1997 by a spamyang message posted on Usenet. At that time the search engine algorithms have not terlalukompleks so easily manipulated.

The early versions of the search algorithm is based entirely on information supplied by webmasters through the meta tags on their website kodehtml. Meta tags provide information about the content contained on a web page with a set of keywords (keyword). Most webmasters do manipulation by writing the keyword that does not correspond to the actual site content, so that search engines seem to have misplaced and rank those sites. This causes the search results to be inaccurate and have caused losses for both search engines as well as for Internet users expect information and quality yangrelevan.

Larry Page and Sergey Brin, two Stanford University computer science mahasiswadoktoral, trying to overcome these problems by building BackRub, a simple search engine that relies on mathematical calculations to rank web pages. The algorithm, called PageRank, a complex mathematical function is a combination of counting the number of links that point to a web page with the analysis of the quality of each of those links.

Based on the working principle of PageRank, in general it can be said that the web pages that rank high are a lot of web pages linked to by other web pages. PageRank value will also be higher if a web page that leads to him also has a high quality. The value of a link from high quality sites such as Yahoo! or DMOZdapat higher value than the combined value of links from low-quality websites hundred.

BackRub only a beginning. In 1998, Page and Brin founded Googleyang is an advanced version of BackRub. In a short time Google gained reputation and trust of the public internet users for successfully serving quality search results (not manipulated), fast, and relevant. PageRank then became a good standard for other search engines as well as for webmasteryang try to make the website gain PageRank score as high as possible so that the highest position in the search results.