I ran deep checks on 50 production sites. 23 had silent failures their uptime monitors missed. Here's every failure type, why it happens, and how to check yourself
1. Expired or Misconfigured SSL Certificates (8 sites)
The most common failure — and the most avoidable.
Eight sites had SSL issues. Three had certificates that had expired...
🛡️ VERIFIED CYBER INTELLIGENCE ID: #3379157