What is a good bounce rate?

There's no universal "good" — it depends on the page type. Blog posts: 70-90% bounce is normal (people read and leave). Landing pages: under 40% is great. Service pages: under 60% is good. The bigger signal is whether time-on-page is reasonable — a 5-second visit + bounce is bad; a 3-minute visit + bounce can be fine if the page answered their question.