Gartner published the 2021 Magic Quadrant for Application Performance Monitoring (APM), positioning vendors based on their ability to execute and vision completeness. Datadog, a unified platform used by customers worldwide, moved from "Visionary" to "Leader" quadrant due to its robust feature set and customer feedback. Its APM tools help users quickly identify and remediate system bottlenecks or errors for optimal user experience. Gartner's research publications do not endorse vendors, products, or services and disclaims all warranties.