As online search becomes more competitive and innovate, Google is upping the ante by developing new technology which will speed up indexing new search results and create a larger index.

Google promises that the new search tool - codename “Caffeine” - will improve the speed, accuracy, size, and comprehensiveness of Google search.

For those businesses that rely heavily on Google-generated traffic, this could be a very big deal for them as they may need to change their search engine optimization (SEO) to protect their Google ranking.

For the last several months, a large team of Googlers has been working on a secret project: a next-generation architecture for Google's web search, software engineer Sitaram Iyer and principal engineer Matt Cutts wrote in the company's official blog.

It's the first step in a process that will let us push the envelope on size, indexing speed, accuracy, comprehensiveness and other dimensions. The new infrastructure sits 'under the hood' of Google's search engine, which means that most users won't notice a difference in search results. But web developers and power searchers might notice a few differences, so we're opening up a web developer preview to collect feedback.

Caffeine is currently available as a sandboxed web-developer preview, but is open to any user who wants to try it. 

Martin McNulty, director of search marketing specialist, Trafficbroker, who has tried the new version, said: Google's caffeine is undoubtedly faster, almost twice as fast at times. It's like a Google GTi.
Caffeine may be 'under the hood' but with this noticeable injection of speed it won't remain under the radar for long.

The search engine market has seen a steady increase in terms of competition in the past months. Wolfram Alpha launched a new search engine which performs searches based on computational knowledge. Then, Microsoft released its revamped new search engine, Bing, which was formerly called Live, and claimed it performs more intuitive searches.