Retrieving Data from the BattleNet

I have seen sites like "sc2ranks.com" and I totally wonder how they get information I could only access when being ingame. I mean how can I access for example the StarCraft II EU Ladder? Is this just an URL we have to access / download or does this require hooking t开发者_开发百科he client in some way with injections?

Every region has an armory associated with it, which you can find on http://battle.net. Global rankings like on sc2ranks and other sites cannot be found on battle.net as they only show division rankings.

If you want to pull information, it has to be done purely with HTML scraping.