Well, looking at the graph, it shows a 365 day record. And if you look back at last July, we were at exactly the same amount of ice then as we are now.

Looks to me like seasonal melt, nothing more than usual, or very slightly increased at most. (I am not a numbers junkie. This is just an observation from the graph.)

The place to look on that site is the archive of daily maps
http://arctic.atmos.uiuc.edu/cryosphere/archive.html
You can see there that while the whole Arctic is not going to melt in six days, what is happening now is unprecedented.
Hudson Bay will be entirely ice free in a couple of days, that never happens till late August. The White Sea was ice free already in mid May, never happens until mid July. And so on.
Their sums of area melted from the graphs don't add up for some reason.