Operations | Monitoring | ITSM | DevOps | Cloud

When GitHub goes down, everything stops. Your developers can't push code. CI/CD pipelines hang indefinitely. Pull requests pile up. Deployments freeze. And if you're like most engineering teams, you find out about it when your Slack channel explodes with "Is GitHub down for everyone?" The average GitHub outage could cost teams 2-4 hours of developer productivity. For a 50-person engineering org, that's 100-200 hours of lost work — assuming you catch the outage immediately. Most teams don't.

When systems fail, the instinct to find someone to blame runs deep. But what if assigning fault actually makes your systems less reliable? A blameless postmortem culture transforms how teams learn from incidents, creating stronger systems and more effective incident response processes.

Modern applications rely on dozens of third-party services to function properly. When these services fail, your application fails too. DevOps teams need to identify and monitor the top SaaS vendors that could impact their infrastructure and user experience. This guide covers the essential SaaS vendors DevOps teams should monitor, organized by category and criticality. We'll explore why each vendor matters and what specific aspects require monitoring.