Let’s Encrypt is a free open Certificate Authority.
https://letsencrypt.org
SSL Certificates · Root Authority
Get access to data on 131,302,390 websites LetsEncrypt Customers. We know of 78,389,390 live websites using LetsEncrypt and an additional 52,913,000 sites that used LetsEncrypt historically and 7,361,524 websites in the United States.
Get a list of 131,302,390 websites using LetsEncrypt which includes location information, hosting data, contact details, 78,389,390 currently live websites and an additional 4,051,959 domains that redirect to sites in this list. 52,913,000 sites that used this technology previouslyand 7,361,524 websites in the United States currently using LetsEncrypt.
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