At Google we're obsessed with speed. We've seen time and time again how an increase in apparent speed leads to a direct increase in user happiness and engagement. Instant Pages helps visitors arrive at your site faster. When we trigger Instant Pages for your site, users can start interacting with your site almost immediately, without having to wait for text and images to load. We'll only trigger Instant Pages when we have very high confidence that your site is the exact result users are looking for. Search traffic will be measured in Webmaster Tools just like before this feature, with only results the user visited counted. We'll take the time this summer before the feature launches in stable versions of Chrome to collect your feedback.
The vast majority of sites will automatically work correctly when prerendered in Chrome. Check out the prerendering post on the Chromium blog if you want to learn more about how prerendering works in Chrome or how you can detect that your site is being prerendered.
