They have monitoring for their infrastructure, right? Add 50 lines of code that connects to all public domains on ipv4 and ipv6 and alerts if the cert expires i

They have monitoring for their infrastructure, right? Add 50 lines of code that connects to all public domains on ipv4 and ipv6 and alerts if the cert expires in under 19 days. Set automatic renewal to happen 20 days out. Done. I wrote this code years ago, after missing a couple ssl renewals in the early days of our small company. Haven’t had an ssl-related outage since. Edit: this is the only necessary fix, no need for calendar invites: > We also plan to update our prober infrastructure to check IPv4 and IPv6 endpoints separately.