Sslmate
Automate SSL certificate buying, deployment, and expiry monitoring from the command line
| What is it | Automate SSL certificate buying, deployment, and expiry monitoring from the command line |
|---|---|
| Pricing | Paid — from $15/mo |
| Free tier | No |
| Platform | Web Application |
| API | Yes |
| Works with | n8n |
| Best for | buying and deploying SSL certificates for websites, monitoring for unauthorized certificate issuance to prevent domain impersonation |
| Domain registered | 2013 |
Data updated Aug. 1, 2026
What does Sslmate do?
Sslmate is a command-line tool and web service that automates the entire lifecycle of SSL/TLS certificates. Instead of manually generating private keys, creating CSRs, validating domain ownership, and assembling certificate bundles, you run a single command like `sslmate buy www.example.com` and Sslmate handles the rest. It also monitors Certificate Transparency logs through its Cert Spotter feature, alerting you if an unauthorized certificate is issued for your domain or if one of your own certificates is about to expire.
What makes Sslmate stand out is its focus on automation and simplicity. The tool installs renewed certificates directly on your servers before the old ones expire, so you don't have to worry about downtime from expired certificates. Cert Spotter gives you early warning of security problems — over 100 certificate authorities can issue certificates for your domain, and Sslmate watches all of them. The founder, Andrew Ayer, is a respected security researcher who has presented at Apple and Google on Certificate Transparency, and he personally answers support emails.
Sslmate is built for system administrators, DevOps engineers, and security professionals who manage multiple websites or services. It's especially useful for teams that want to eliminate manual certificate renewal tasks and reduce the risk of outages or domain hijacking. The command-line interface fits naturally into automated deployment pipelines, and the monitoring features provide peace of mind that your certificate infrastructure stays secure and up to date.
Key features
What makes it stand outWho is Sslmate for?
Who benefits most from this toolPricing
SSL Certificates
Cert Spotter
Trust & presence
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