Let’s Encrypt is a free open Certificate Authority.
https://letsencrypt.org
SSL Certificates · Root Authority
Get access to data on 136,746,595 websites that are LetsEncrypt Customers. We know of 54,629,999 live websites using LetsEncrypt and an additional 82,116,596 sites that used LetsEncrypt historically and 5,372,371 websites in the United States.
Get a list of 136,746,595 websites using LetsEncrypt which includes location information, hosting data, contact details, 54,629,999 currently live websites and an additional 5,011,692 domains that redirect to sites in this list. 82,116,596 sites that used this technology previouslyand 5,372,371 websites in the United States currently using LetsEncrypt.
Countries
Financial
Group
Region