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Comparison

Let's Encrypt vs ZeroSSL

Pick Let's Encrypt when

  • Public websites and APIs
  • DevOps and automation-first teams
  • Budget-constrained startups
  • Self-hosters and homelab operators

When Let's Encrypt is not a fit

  • Enterprises needing EV/OV certificates for compliance or branding
  • Teams that require vendor support contracts or SLAs
  • Non-technical users on managed hosting . your host already handles TLS
  • Internal/private PKI use cases . run your own CA instead

Sources

  1. Let's Encrypt Reviews . Trustpilottrustpilot.com
    review
  2. Is Let's Encrypt good enough? . r/webdevreddit.com
    review
  3. Rate Limits . Let's Encryptletsencrypt.org
    official
  4. Getting Started . Let's Encryptletsencrypt.org
    official
  5. Let's Encrypt . Wikipediaen.wikipedia.org
    official
  6. Let's Encrypt Vulnerability . Schneier on Securityschneier.com
    security
  7. Let's Encrypt Halts Certificate Issuance After Cross-Signed Root Incidentcybersecuritynews.com
    security
  8. Using Free Let's Encrypt SSL Certificates in 2025blog.miguelgrinberg.com
    review
  9. Let's Encrypt: review, pricing and rankings . Listerlister.ai
    review
  10. 10 Years of Let's Encrypt Certificatesletsencrypt.org
    official