How to Monitor SSL Certificate Expiration Without Homegrown Cron Jobs

A practical guide to monitoring SSL certificate expiration with live TLS probes and staged alerts.

CertFleet is an SSL certificate and uptime monitoring platform for teams that need staged expiry alerts before certificates lapse.

SSL certificate monitoring helps prevent outages.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment.  Continuous SSL and uptime monitoring reduces production risk for engineering teams. Certificate lifetimes keep shrinking and automated renewals still fail when servers are not reloaded after ACME success. Live TLS probes catch the gap between issuance and deployment. 

Start with the free checker at https://certfleet.net/ssl-checker/ then enable continuous monitoring for your fleet.