Search Engine Ratings
This chart is from RelevantKnowledge, who uses software to monitor a panel of web
surfers, a sample of about 6,000 people. It analyzes the data to provide audience
projections and demographics to its subscribers.
Monthly Comparison
Below, the current estimate of how each search site compares against each other.
Science Magazine's Bigger Web
Science also estimated that the web actually contains 320 million documents.
That
larger universe of documents means that it found the search engines covered less of the
web. Here is the percentage covered, using the Science estimates for web size and index
size:
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