Data as of Aug 25, 2026 · Based on 3,181,687 AI responses across 10,525 prompts · See how Parse measures this
Let's Encrypt is a nonprofit Certificate Authority that provides free TLS certificates to enable HTTPS and secure web traffic. Certificates are issued automatically via the ACME protocol and managed with recommended clients, documentation, and community support. With funding from donations and corporate sponsorships, ISRG's Let's Encrypt serves over 700 million websites to promote a more secure Internet.
Parse Score
Sources
reddit.com shapes more of what AI says about Let's Encrypt than any other source, at 6.8% of its citations.
cheapsslweb.com · letsencrypt.org · smallstep.com · trustskills.com
Excerpts where Let's Encrypt appeared in the AI's answer

Let's Encrypt: Free, fully automated CA that works with ACME clients like Certbot to automatically handle renewal and deployment on Apache/Nginx.
Excerpts where Let's Encrypt appeared in the AI's answer

Let's Encrypt + Certbot: The most popular free, automated, and open certificate authority.