matchMedia polyfill for testing media queries in JS.
https://github.com/paulirish/matchMedia.js/
JavaScript Libraries and Functions · Compatibility
Get access to data on 5,319,386 websites that are matchMedia Customers. We know of 1,428,586 live websites using matchMedia and an additional 3,890,800 sites that used matchMedia historically and 697,449 websites in the United States.
Get a list of 5,319,386 websites using matchMedia which includes location information, hosting data, contact details, 1,428,586 currently live websites and an additional 1,653,734 domains that redirect to sites in this list. 3,890,800 sites that used this technology previously and 697,449 websites in the United States currently using matchMedia.
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