A Sergio Ramos penalty 11 minutes from time secured a vital win for Los Blancos in a nervy game in which Madrid struggled to deal with the visitors' high intensity and pressing game.
Courtois remarked after Thursday's win, "We know what kind of game they play. Each team has their style and it works for them.
"The key against Getafe is not to get carried away by the fouls that make you talk to the referee because they try to take you out of the game and you need to focus on your game which is what we did.
"They play a very intense game, putting pressure on you and they don't let you develop your game.
"They do that very well, that's why they're having a good year, they play with their style, they win points with their pressure and crossing, that's their game."