Let's Encrypt 45-Day Certificate Expiration: Monitoring & More
The move by Let’s Encrypt from 90-day certificates to 45-day certificates is more than a policy shift. It changes how teams must manage renewals, detect failures, and validate that certificates are deployed consistently across distributed systems. A shorter lifecycle compresses the margin of error. Automation that previously limped along unnoticed now breaks on a far tighter schedule. And every misconfiguration hits users faster.