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Google's Caffeine Now Live

Google's new web indexing system Caffeine is now live. According to a company blog post, Google built the new search indexing system over a year ago to keep up with the evolution of the Web and to meet rising user expectations. Caffeine offers 50 percent fresher results for web searches than Google's last index and boasts the largest collection of web content the company has ever offered.

In comparison to the old index, Caffeine allows Google to index web pages on a much larger scale, making it possible for users to find new pages or information faster than before. The old index, which was comprised of several layers, refreshed at a much slower rate than Caffeine because Google would have to analyze the entire web before a page could be made available to the searcher. With Caffeine, Google is able to analyze the web in small portions and update the search index on a regular basis.

According to the announcement, "Caffeine takes up nearly 100 million gigabytes of storage in one database and adds new information at a rate of hundreds of thousands of gigabytes per day."

What does this mean for searches and content owners? Vanessa Fox of Search Engine Land writes, "Caffeine is a revamp of Google's indexing infrastructure. It is not a change to Google's ranking algorithms."

-Melanie Saxe


Jun 09, 2010