I found a "4 second" rule in one of Google's Learning Center's multimedia files http://services.google.com/awp/en_us/breeze/2979222/index.html [services.google.com]. #4 "Making Landing Pages Easy To Navigate. I was wondering if anyone knew if that was a completely rendered page or not. What if the images are pulled from the css?
Thanks in advance!
please note that landing page load time is evaluted from Adsbot, a Google bot dedicated to test (you'll see in Google webmaster tools the possibility to test a second bot after GoogleBot. One of them bot is Adsbot).
Please also note that rapid load time is always a quality factor for Google, also in organic results.
Thanks for the feedback!