E2Guardian - Web filtering solution
ManageEngine Log360 - Comprehensive SIEM solution
NxFilter - Best performance. You don't want to slow down your network by installing a network security software. NxFilter is a light-weight DNS filter. It doesn't cause any latency issue in your network.
EventSentry - EventSentry is a real-time log management, network and server health monitoring solution.
Qustodio - Free parental control software. Monitor and track your child's online activity. Block dangerous sites and protect kids from online bullying.
Humio - Humio is log management without limits.