How to Monitor SSL Certificate Expiry
The SSL Expiry Problem
Expired SSL certificates cause browser security warnings that immediately drive away visitors. Major outages at companies like LinkedIn, Microsoft, and Spotify have all been caused by forgotten certificate renewals. Automated monitoring prevents this entirely.
When to Get Alerted
Set alerts for 30 days, 14 days, and 7 days before expiry. The 30-day alert gives your team time to plan the renewal. The 7-day alert is the last-resort warning. Also monitor for already-expired certificates in case auto-renewal fails.
Setting Up Monitoring
Add your domains to AlertPulse and it will check the SSL certificate details automatically. You'll get alerts at your configured warning thresholds, plus immediate alerts if a certificate has already expired.
Beyond Expiry Monitoring
Also monitor for certificate chain issues, weak cipher suites, and protocol version support. A complete SSL monitoring strategy covers not just expiry but the overall health and security of your TLS configuration.
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