Microsoft is adjusting how it ranks Bing search results for mobile users, prioritizing sites that display better on smaller screens to accommodate the increased use of mobile search.

The changes, announced Thursday, come less than a month after Google started prioritizing mobile-optimized sites in its search results. Both companies are looking to attract more users by providing a better search experience on smartphones and tablets.

Microsoft said it expects to roll out the changes in the coming months. Sites that display well on smaller screens will also be flagged with a new “mobile friendly” tag. In the U.S. last year, Bing had roughly 6 percent of the mobile search market, compared with Google’s 83 percent, according to figures from StatCounter.

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