Devices and techniques are generally described for ranking of search results. In some examples, a query may be received. A first ranked list of content items may be determined for the query ranked based on a first optimization objective. A second ranked list of the content items may be determined for the query ranked based on a second optimization objective. A first rank product may be determined for a first content item based at least in part on multiplication of a rank of the first content item in the first ranked list with a rank of the first content item in the second ranked list. A third ranked list of the content items may be determined based at least in part on the first rank product. At least a portion of the third ranked list of the content items may be displayed on a display.