Most of the search engines attempt to suggest a correct spelling for a query in case a typo is suspected. The quality of such hints is an important addition to the overall quality of the search. This analyzer looks for the correct hint in the search results for a query with a deliberate typo and estimates the number of occurrences of a 'correct' query contained in the hint.

The evaluation is based on the same set of queries containing typos that is used for the typo resistance analyzer. The more correct hints have been given, the higher is the search engine's index for this analyzer.