Author name: Akslin_crtmgr

It’s 3 AM. PagerDuty fires. Your checkout page is down. You SSH in, check Nginx — it’s running fine. Then you notice it: NET::ERR_CERT_DATE_INVALID. The certificate expired six hours ago. Everyone’s been asleep. Sales have been zero for six hours. Sound familiar? Certificate problems are among the most common causes of unexpected downtime, and they’re […]

You’ve set up certificate monitoring, you have alerts configured, and everything looks good on your side. Now your client calls asking whether their certificate is still valid. You either go look it up and relay the information, or — if you’re thinking ahead — you already have a link ready to send them that shows