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 7,436,622 websites WebFont Loader Customers. We know of 1,607,239 live websites using WebFont Loader and an additional 5,829,383 sites that used WebFont Loader historically and 685,584 websites in the United States.
Get a list of 7,436,622 websites using WebFont Loader which includes location information, hosting data, contact details, 1,607,239 currently live websites and an additional 1,358,366 domains that redirect to sites in this list. 5,829,383 sites that used this technology previouslyand 685,584 websites in the United States currently using WebFont Loader.
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