I entered http://www.tumblr.com http://www.tumblr.com and it took around 5 seconds to come up with a result, this is because tumblr uses "endless scrolling". I

I entered http://www.tumblr.com http://www.tumblr.com and it took around 5 seconds to come up with a result, this is because tumblr uses "endless scrolling". Is this by design?