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 7,445,860 websites WebFont Loader Customers. We know of 1,782,387 live websites using WebFont Loader and an additional 5,663,473 sites that used WebFont Loader historically and 770,431 websites in the United States.
Get a list of 7,445,860 websites using WebFont Loader which includes location information, hosting data, contact details, 1,782,387 currently live websites and an additional 1,531,168 domains that redirect to sites in this list. 5,663,473 sites that used this technology previouslyand 770,431 websites in the United States currently using WebFont Loader.
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