Splunk is a software platform that allows users to search, monitor, and analyze machine-generated big data for security, IT and business intelligence. It collects data from sources like servers, networks, sensors and applications. Splunk can scale from analyzing data from a single computer to very large enterprises handling terabytes of data per day. It provides real-time operational intelligence through universal data ingestion, schema-on-the-fly indexing, and an intuitive search process.