What is Let's Encrypt?
Turkish: Let's Encrypt
Let's Encrypt is a nonprofit certificate authority that issues free, automated SSL/TLS certificates through ACME for HTTPS.
What is Let’s Encrypt?
Let’s Encrypt is a certificate authority that verifies control of a domain and issues free SSL/TLS certificates for it. Its main value is automation: certificate issuance and renewal are handled through the ACME protocol.
Let’s Encrypt certificates are typically valid for 90 days. A server or hosting panel proves domain control through an HTTP-01 or DNS-01 challenge, receives the certificate, and installs it on the web server. If automatic renewal fails, HTTPS can expire, so the cron job, hosting integration, or CDN configuration should be monitored.
Operational Notes
- Certificate renewal should be monitored and alert on failure.
- Wildcard certificates usually require DNS validation.
- Correct TLS configuration matters as much as obtaining the certificate.
- CDN or reverse proxy setups may have separate edge and origin certificates.
Let’s Encrypt makes HTTPS accessible, but it does not secure the whole application by itself. Certificate management relates to SSL certificates, connection security to SSL/TLS, web delivery to HTTPS, and CDN deployments to Cloudflare.