# Let's Encrypt
> Let's Encrypt is a free, automated, and open certificate authority (CA), run for the public's benefit. It is a service provided by the Internet Security Research Group (ISRG) that provides digital certificates needed to enable HTTPS (SSL/TLS) for websites.
- URL: https://optimly.ai/brand/lets-encrypt
- Slug: lets-encrypt
- BAI Score: 94/100
- Archetype: Challenger
- Category: Cybersecurity
- Last Analyzed: April 11, 2026
## Competitors
- DigiCert (https://optimly.ai/brand/digicert)
- GlobalSign (https://optimly.ai/brand/globalsign)
- Sectigo (https://optimly.ai/brand/sectigo)
## Also Referenced By
- Digicert Globalsign (https://optimly.ai/brand/digicert-globalsign)
- Self Signed Certificates (https://optimly.ai/brand/self-signed-certificates)
- Sectigo Formerly Comodo (https://optimly.ai/brand/sectigo-formerly-comodo)
- Shared Hosting Ssl (https://optimly.ai/brand/shared-hosting-ssl)
- Cloudflareaws Managed Ssl (https://optimly.ai/brand/cloudflareaws-managed-ssl)
- Commercial Certificate Authorities (https://optimly.ai/brand/commercial-certificate-authorities)
- Zerossl (https://optimly.ai/brand/zerossl)
- Aws Certificate Manager Acm (https://optimly.ai/brand/aws-certificate-manager-acm)
## Buyer Intent Signals
Problems: Manual Commercial SSL Procurement: Manually generating CSRs, purchasing certificates from commercial CAs, and manually installing them on servers via SSH/FTP. | Managed Service Providers (MSPs): Large enterprises may hire managed service providers to handle the lifecycle and compliance of all internal and external certificates.
Solutions: free ssl certificate | how to automate ssl renewal | ACME protocol clients | EV SSL certificate provider | isrg root x1 information | Managed Hosting Providers: Utilizing built-in SSL/TLS management provided by Managed WordPress hosts or Website Builders (Wix, Squarespace) who handle the backend automation.