Metrics That Really Matter for Your Startup

Hopefully these metrics are not "news" to any "hackers" on HN.

1. Bounce% & time on page 2. CPA (cost per acquisition) 3. Growth

But of course this is a broad solution, and your startup will care about different metrics.

If I'm Google, and I run PPC in search engines, my "time viewing an ad" is far less useful/important of a metric than a simple click through rate.