ZeroSSL
Free SSL alternative to Let's Encrypt
ZeroSSL provides free SSL certificates as an alternative to Let's Encrypt. Also offers paid OV and EV certificates. REST API, ACME support, and monitoring. 90-day free certs.
Pros
- Alternative CA to Let's Encrypt — diversification
- REST API for certificate management
- Paid OV/EV available
Cons
- Free tier limited to 3 certificates
- Less established than Let's Encrypt
Best For
Developers who want a Let's Encrypt alternative for CA diversification or need OV/EV certificates
Pricing
Free
- Core features included
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Alternatives to ZeroSSL
DigiCert
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GlobalSign
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Sectigo (Comodo)
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acme.sh
Free ACME client for automated SSL/TLS certificate management
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