Internet search services provider Google, Inc., US, recently announced the completion of a new web indexing system called Caffeine. According to Google, Caffeine will provide 50 percent fresher results for web searches than the company's previous index. Also, users can now find links to relevant content much sooner after it is published than was possible before.
Google's old index had several layers, some of which were refreshed at a faster rate than others; the main layer would update every couple of weeks. Content was not added to the Google search index until a layer was refreshed. This caused a significant delay between publishing content and having it show up on the search engine.
Caffeine is projected to analyse the web in small portions and update the search index on a continuous basis, globally. As it finds new pages, or new information on existing pages, it can add these straight to the index. Caffeine is projected to allow for indexing of web pages on an enormous scale. According to the company, it 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.
Google reportedly opted for a new search indexing system because content on the web is expanding significantly. It is growing not just in size and numbers but with the advent of video, images, news and real-time updates, the average webpage is richer and more complex. In addition, people's expectations for search are higher than they used to be. Searchers want to find the latest relevant content and publishers expect to be found the instant they publish.
Google recently went live with Caffeine, and the service is now being used in all Google searches. A regular Internet-trolling search-engine user may start seeing different search results, hopefully more up-to-date, relevant news stories and blog posts, according to the company.
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