I think this is just a work-around for the sloppiness of the web. If all the resources for a page were compiled into a single file and sent all at once, this wouldn't be necessary, but that'd be inefficient to for subsequent page requests.
Sites that want to get the same speedup can make sure they don't have any secondary resources that block page rendering.
Finally, the particular mechanism, link rel="prefetch" is used by Bing and IE 11 [1]. Google has just found a way to prefetch even earlier than normal, by inserting the prefetch links into the search page as soon as the user clicks.
I think this is just a work-around for the sloppiness of the web. If all the resources for a page were compiled into a single file and sent all at once, this wouldn't be necessary, but that'd be inefficient to for subsequent page requests.
The benefit of the web was that you didn't have a fat GUI locally. With the push to aggregate assets together and get the entire UI/logic into the client browser, cached, and read off of remote services, we're slowly making our way back to local GUI apps. This time, the browser is the OS (forgive the poor analogy).
Comments
I think this is just a work-around for the sloppiness of the web. If all the resources for a page were compiled into a single file and sent all at once, this wouldn't be necessary, but that'd be inefficient to for subsequent page requests.
Sites that want to get the same speedup can make sure they don't have any secondary resources that block page rendering.
Finally, the particular mechanism, link rel="prefetch" is used by Bing and IE 11 [1]. Google has just found a way to prefetch even earlier than normal, by inserting the prefetch links into the search page as soon as the user clicks.
[1]: http://blogs.msdn.com/b/ie/archive/2013/12/04/getting-to-the...
The benefit of the web was that you didn't have a fat GUI locally. With the push to aggregate assets together and get the entire UI/logic into the client browser, cached, and read off of remote services, we're slowly making our way back to local GUI apps. This time, the browser is the OS (forgive the poor analogy).
What was old is new again.