WebFont Loader gives you added control when using linked fonts via @font-face, from Typekit.
https://github.com/typekit/webfontloader
JavaScript Libraries and Functions
Get access to data on 7,361,111 websites that are WebFont Loader Customers. We know of 1,284,566 live websites using WebFont Loader and an additional 6,076,545 sites that used WebFont Loader historically and 559,105 websites in the United States.
Get a list of 7,361,111 websites using WebFont Loader which includes location information, hosting data, contact details, 1,284,566 currently live websites and an additional 1,323,360 domains that redirect to sites in this list. 6,076,545 sites that used this technology previouslyand 559,105 websites in the United States currently using WebFont Loader.
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