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Monitor uptime
CalculatorGuidesUpzillaMonitor uptime

SLA & uptime guides

What the nines mean, what downtime costs and how to measure uptime honestly.

How-to

How to calculate uptime from incident logs

A step-by-step method to turn a list of incidents into an honest monthly uptime percentage.

October 16, 2026 · 4 min readRead →
Business

The cost of one hour of downtime

A simple way to estimate what an hour offline really costs your business, beyond lost sales.

October 14, 2026 · 4 min readRead →
Basics

SLA vs SLO vs SLI: what is the difference?

Three similar acronyms, three different jobs. A plain explanation with a worked example.

October 12, 2026 · 5 min readRead →
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