I believe this is the "Chrome Instant" feature as discussed here: http://www.google.com/chrome/intl/en-GB/webmasters-faq.html#instant http://www.google.com/chro

I believe this is the "Chrome Instant" feature as discussed here: http://www.google.com/chrome/intl/en-GB/webmasters-faq.html#instant http://www.google.com/chrome/intl/en-GB/webmasters-faq.html#... You can use the "X-Purpose: instant" HTTP header to detect these requests. If you're really paranoid, you can return those requests with "403 Forbidden" responses, or your analytics company will have to take these headers into account.