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SSL / HTTPS
SSL / HTTPS
fast.site automatically issues and renews free SSL/TLS certificates for every domain. Powered by Let's Encrypt and CertMagic for zero-maintenance security.
How automatic SSL works
1
DNS Routing
You route your domain DNS to the fast.site network.
2
First Request
The first HTTPS request arrives at our global Edge Server.
3
ACME Challenge
CertMagic initiates a challenge with Let's Encrypt automatically.
4
Instant Issue
Certificate is issued and installed in a matter of seconds.
5
Auto-Renewal
Certificates are renewed 30 days before they expire.no action needed.
SSL Modes
| Mode | Description | Use Case |
|---|---|---|
| None | HTTP only. No HTTPS support. | Not recommended |
| Auto (Default) | Automatic Let's Encrypt certificate issuance. | All production domains |
| Custom | Upload your own certificate and private key. | Commercial / Wildcard certs |
Custom Certificates
If you use a certificate from a commercial CA (DigiCert, Sectigo, etc.), you can upload it directly to fast.site.
Certificate File
.pem, .crt, .cer
Private Key
.pem, .key
Note: You are responsible for monitoring and renewing custom certificates before they expire. fast.site cannot auto-renew third-party certificates.