Yes it does. See this example of the nytimes: http://url2picture.com/Picture/Png/?apikey=6101EE5C99B145ECB...
Of course there are limits to this as some websites have "endless" scrolling (like pintrest)
Of course there are limits to this as some websites have "endless" scrolling (like pintrest)
And using 400x400 viewport: http://www.url2picture.com/Picture/Png/?apikey=6101EE5C99B14...