I just realized that Stack Exchange websites becomes a bit slow and accidentally I saw
"Waiting for graph.facebook.com ..." in the loading massage box in the bottom of the browser. What is the role of this link here and why should it be loaded?
I am asking this because
facebook.com is banned in my country by default and any webpage that uses its contents will be slow or half-loaded.
So is this the reason of Stack Exchange being slow for me? What other sub websites are loaded when I open