Wednesday, July 30, 2008

Google's search index one trillion page

Google announced on July 25 that its search engine has indexed over 1 trillion unique web pages from all over the globe. Google, known as a popular international search engine, has servers all around the world to index web pages. With the rapid development of the Internet, the number of web pages with unique URL (Uniform Resource Locator) is growing by several billion per day. In 1998, Google had an index of only about 26 million pages. Within 10 years, that number has increased by 38 thousand times.

In the early years of the competition of search engines in the 90s, comparing the number of indexed pages was thought to be the best way to compare the engines, while today, users tend to find it more important for a search engine to return pages better related to their searches. Though many search engine competitors exist, Google boasts more patented technology than most, such as PageRank and text-analyzing, and services like the well-known Gmail, WAP search, Blogger, Google Earth, Google Moon, and range-specialized and customized search.