The 25-year-old impressed against the Eagles and there has been a notable improvement in his performances of late after a difficult beginning to life on Merseyside.
But he has stressed the importance of maintaining a steady run of form after the disappointment of last week's heavy defeat against Arsenal.
"My confidence is always growing,” Keane told evertontv. “It took a dent last week [following the Arsenal match]. I think that happened to the whole team. I need to find more consistency and play like that week in, week out.
“I know that and will be doing everything I can to achieve that. I was happy with how it went against Palace. I thought we were really solid as a team, there was a lot of communication [across the pitch], and I was really pleased.
“I thought I did well. I enjoy the battles. I knew there would be a lot of aerial balls against Benteke and the new guy [6ft 4in Palace debutant forward Alexander Sorloth] and I worked on that in training.