What makes a metric meaningful?

A time range and a basis for comparison. “12,400 sessions” without “versus last week” is a raw number.

Count metric vs. ratio metric?

A count tells volume (sessions); a ratio tells quality (bounce rate). Good decisions usually need both.

Metric

Beginner

Updated Jul 11, 2026 Shahin editorial 2 min read

Pronunciation

A metric is a number that quantifies a measurable aspect of user behavior or system performance over time.

Metrics are either counts (number of sessions), ratios (bounce rate) or averages (average session duration). A metric only means something next to a time range and a basis for comparison.

FAQ

Sources:Wikipedia — Performance metric