What percentage of traffic should a canary receive?

Start with 1-5% for high-risk changes. Use 10-20% for routine updates. Progress: 1% -> 5% -> 25% -> 50% -> 100% with observation periods between each step.

How long should I observe a canary before promoting?

Need enough traffic for statistical significance. At 1% canary with 1,000 req/sec = 10 req/sec to canary. Need 1,000 canary requests = 100 seconds minimum observation.

What signals indicate a canary is failing?

Watch: error rate increase >0.1%, latency p99 increase >20%, CPU usage increase >30%, custom business metrics. Any regression triggers automatic rollback.

Canary Deployment Success Threshold Calculator

Calculate statistically significant success thresholds for canary deployments. Determine minimum traffic percentage and observation period needed to detect regressions with confidence.

AI & SaaS Tools

SaaS Metrics

AI Compute

AI ROI

LTV:CAC Ratio

ARPU ($/month)

Monthly Churn %

CAC ($)

Gross Margin %

LTV

$3500

LTV:CAC

11.67

Payback

2.9 mo

Health

Healthy ✓

Benchmark: LTV:CAC ≥ 3 is healthy. Payback under 12 months is excellent. Under 1 means you lose money on each customer.

How to Use

Enter the values for the scenario you are assessing. Calculate statistically significant success thresholds for canary deployments. Determine minimum traffic percentage and observation period needed to detect regressions with confidence. Use the canary deployment result to inform your calculation.

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Canary Deployment Success Threshold Calculator

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Frequently Asked Questions

What percentage of traffic should a canary receive?

How long should I observe a canary before promoting?

What signals indicate a canary is failing?