Forces browsers to only communicate with the site using HTTPS.
https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security
SSL Certificates
Get access to data on 63,877,178 websites that are HSTS Customers. We know of 42,493,489 live websites using HSTS and an additional 21,383,689 sites that used HSTS historically and 4,729,044 websites in the United States.
Get a list of 63,877,178 websites using HSTS which includes location information, hosting data, contact details, 42,493,489 currently live websites and an additional 5,855,549 domains that redirect to sites in this list. 21,383,689 sites that used this technology previouslyand 4,729,044 websites in the United States currently using HSTS.
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