Splunk Inc. is an American public multinational corporation based in San Francisco, California, that produces software for searching, monitoring, and analyzing machine-generated big data via a Web-style interface. Splunk (the product) captures, indexes, and correlates real-time data in a searchable repository from which it can generate graphs, reports, alerts, dashboards, and visualizations. Splunk makes machine data accessible across an organization by identifying data patterns, providing metrics, diagnosing problems, and providing intelligence for business operations. Splunk is a horizontal technology used for application management, security and compliance, as well as business and web analytics. As of early 2016, Splunk had over 10,000 customers.
Splunk's core offering collects and analyzes high volumes of machine-generated data. It uses a standard API to connect directly to applications and devices.It was developed in response to the demand for comprehensible and actionable data reporting for executives outside a company's IT department. Splunk Enterprise Security (ES) is a security information and event management (SIEM) solution that provides insight into machine data generated from security technologies such as network, endpoint, access, malware, vulnerability and identity information. It is a premium application that is licensed independently from Splunk core. In 2011, Splunk released Splunk Storm, a cloud-based version of the core Splunk product. Splunk Storm offered a turnkey, managed and hosted service for machine data. In 2013, Splunk announced that Splunk Storm would become a completely free service and expanded its cloud offering with Splunk Cloud. In 2015, Splunk shut down Splunk Storm.