Whether it is a delivery van, a trailer in a storage yard, or a dog on a hike, Traccar is the GPS tracking server that puts it on one live map you host and control. Every position and event lands in your own SQL database. Over 200 protocols covering 2000+ tracker models decode out of the box, so a Teltonika fleet unit and a budget dongle share one device list. Pick a device to see speed, address, ignition, and total distance. Routes replay on a timeline slider, and a ruler tool measures distances. Geofences can be polygons, polylines, or circles, linked to devices or groups, colored as you like, and limited by calendar schedules. Alerts for overspeed, fuel drops, offline devices, alarms, and maintenance arrive by web, email, push, SMS, Telegram, or WhatsApp. Reports cover trips, stops, summaries, charts, events, and positions, with Excel export and scheduled email delivery. Commands go out over the tracker's own connection or by SMS, queued for offline devices. Computed attributes derive ignition or fuel values from raw inputs using expressions. Resellers get admin, manager, user, and read-only roles with device limits, plus white-label branding. Traccar Client lets a smartphone report as a tracker, and Traccar Manager monitors devices from mobile. Teams who want AI assistants to query their devices can add the MCP endpoint, which is optional. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.