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So Google has 66.3% of all searches conducted in October says comScore an increase of 0.2%. Does that mean Instant Search is working?
ComScore has gone to some lengths to scrub the data, reporting only on "Explicit Core Search" which they say excludes "contextually driven searches that do not reflect specific user intent to interact with the search results."
User actions that qualify an explicit query include those where a user hits "enter," clicks on an algorithmic or sponsored result, clicks one of the various refinement links (such as past 24 hours, etc.) or clicks on a vertical search tab to execute the query in a different channel (such as News or Image Search).
Any query with such explicit action is counted in Explicit Core Search. Query result pages without explicit user action, but with a pause of at least 3 seconds, are considered as indicating ‘implicit’ engagement and will count towards Total Core Search.