From 3:00am to 9:00am Paris time, on Tuesday 17 July, we will be conducting maintenance on some of our websites. You won’t be able to access the World of Warcraft website, Account Management, the Forums, the Armory, or the StarCraft II site. You will still be able to access our Blizzard website. We apologise for any inconvenience during this downtime.
Original post by World of Warcraft Community Site