Let's Encrypt
Open certificate authority providing free TLS certificates.
Let's Encrypt is a free, automated, and open certificate authority run by the Internet Security Research Group, democratising web encryption.
| Pricing from | $0/year |
| Best for | Developers and blogs |
| Website | letsencrypt.org |
Strengths and trade-offs
- Completely free of charge
- Automated renewal process via ACME protocol
- Only offers Domain Validated certificates
- Short ninety day validity period requires frequent automation
Appears in
Alternatives to Let's Encrypt
 DigiCertThe gold standard in digital trust. | #1 in Top 10 SSL Certificate Providers | 95.0 |
 SectigoWeb security made accessible. | #2 in Top 10 SSL Certificate Providers | 92.7 |
 GlobalSignIdentity and security solutions for the connected world. | #3 in Top 10 SSL Certificate Providers | 90.3 |
 GeoTrustHigh value SSL security without the hassle. | #5 in Top 10 SSL Certificate Providers | 85.7 |
 ThawteGlobal trust and local support. | #6 in Top 10 SSL Certificate Providers | 83.3 |
 SSL.comYour secure connection to the digital world. | #7 in Top 10 SSL Certificate Providers | 81.0 |
Questions about Let's Encrypt
How much does Let's Encrypt cost?
Lister lists Let's Encrypt's pricing as: $0/year.
Is Let's Encrypt free?
Yes. Its pricing reads: $0/year.
Who is Let's Encrypt best for?
Let's Encrypt is best for developers and blogs.
Where does Let's Encrypt rank?
Let's Encrypt is ranked #4 in Top 10 SSL Certificate Providers (Lister Score 88.0).
What are the best alternatives to Let's Encrypt?
The closest alternatives on Lister are DigiCert (#1 in Top 10 SSL Certificate Providers), Sectigo (#2 in Top 10 SSL Certificate Providers) and GlobalSign (#3 in Top 10 SSL Certificate Providers).
Is this your company?
Claim Let's Encrypt to suggest corrections to its listing (pricing, features, details) or ask about an enhanced profile. We review every claim before anything changes.