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Let's Encrypt
Let's Encrypt is a non-profit certificate authority operated by the Internet Security Research Group that provides free TLS certificates to enable HTTPS encryption for websites.
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Let's Encrypt competitors
A few of Let's Encrypt's closest competitors — see the full list of competitors and alternatives →
Internet Security Research Group operates Let's Encrypt, a free, automated, and open certificate authority that provides digital certificates for secure HTTPS connections.
LiteSSL is a free, automated TLS/SSL certificate service and public welfare project provided by TrustAsia to help websites enable HTTPS encryption.
GeoTrust is a digital certificate authority providing SSL/TLS certificates and website security solutions, powered by DigiCert.
ZeroSSL provides a cloud-based platform for issuing, managing, and automating SSL certificates for websites and domains. It serves developers, startups, and enterprises by offering tools such as one-step validation, ACME integrations, a management console, and a REST API for automated certificate renewals.
RapidSSL provides TLS/SSL and Wildcard certificates through a global network of resellers to secure websites and encrypt data. The company targets businesses and organizations seeking trusted website security alternatives to free providers, and it facilitates upgrades to GeoTrust certificates for enhanced warranties, tools, and support.
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