INTERMAGNET (International Real-time Magnetic Observatory Network) is a global network of over 100 magnetic observatories, working with the International Association of Geomagnetism and Aeronomy (IAGA). Its one-minute measurement data undergo a strict two-stage review by expert teams, ensuring high accuracy and consistency. Verified data are published online and as DOI. This gives researchers and practitioners fast access to reliable data for science and practical applications.