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99.9 uptime articles.

Browse MarionetteOps articles on 99.9 uptime — practical guides for engineering teams running uptime monitoring, server agents, and status pages.

June 26, 2026

Uptime Percentage Explained: What Does 99.9% Actually Mean?

Understand uptime percentages, downtime budgets, SLA math, and what 99.9%, 99.95%, and 99.99% availability mean for real customers.

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