Let's Encrypt
Free, automated TLS certificates for HTTPS
What founders should know about Let's Encrypt
Let's Encrypt is a nonprofit Certificate Authority that provides free, automated TLS/SSL certificates to enable HTTPS encryption on websites. It uses the ACME protocol for automatic certificate issuance and renewal, serving hundreds of millions of sites.
Best for
Free, automated TLS certificates for HTTPS
Probably not for
Teams that need requirements this record cannot verify yet.
About Let's Encrypt
Let's Encrypt is a nonprofit Certificate Authority that provides free, automated TLS/SSL certificates to enable HTTPS encryption on websites. It uses the ACME protocol for automatic certificate issuance and renewal, serving hundreds of millions of sites.
Common use cases
- enabling HTTPS
- automated certificate renewal
- securing domains
- wildcard certificates
Integrations
Certbot, Netlify, SiteGround, Shopify, ACME clients.
Decision criteria
- Team fit and workflow maturity
- Pricing model and free-tier constraints
- Deployment, API, and integration requirements
Verified facts and evidence
| Claim | Value | Source | Confidence |
|---|---|---|---|
| Verification date | 2026-06-30 | StartupToolbox | high |
| Pricing model | free | StartupToolbox | medium |
| Starting price | USD 0 | StartupToolbox | medium |
Methodology and freshness
A founder should be able to bookmark this page, compare the record with related options, and act without reopening scattered source tabs.
Use this record to narrow fit, pricing, and integration risk before starting trials.
Last reviewed: Jun 30, 2026
Who should consider Let's Encrypt?
Free, automated TLS certificates for HTTPS
How current is this tool record?
Startup Atlas last checked this record on 2026-06-30.