← Site Reliability Engineering

SLOs, SLIs & Error Budgets

Define what 'reliable enough' means in numbers — then balance speed against stability.

Reliability is a spectrum, and chasing 100% wastes money you could be spending on features. I define SLIs that track what users actually feel, set honest SLO targets, and turn the gap into an error budget.

That budget becomes a shared, numeric way to decide when to push new work and when to slow down and harden — so reliability stops being an argument and starts being a measurement.

What's included

Related articles

SLOs that don't lie: measuring what users actually feel

Most SLOs are green while users suffer — they measure the system, not the person. How to build SLIs from real user journeys, give each journey the target it deserves, turn the gap into a team-owned error budget, and wire alerts that drill straight to the cause.

Site Reliability Engineering

Let's talk about your project.

Tell me about your system and what you're trying to achieve — I'll tell you honestly how I can help.

Start a conversation

Find me on social media