Phạt Nguội GT is a Vietnamese traffic-information service that helps vehicle owners check for recorded traffic violations across the country. Its online lookup supports cars, motorbikes, and electric bicycles: users enter a license plate, select the vehicle type, and can receive results within seconds. The site presents its data as sourced from the Traffic Police Department and explains that the service makes official violation information easier to access; it also directs users to government websites for independent checks.

In addition to vehicle searches, Phạt Nguội GT offers an app advertised as free, with notifications about newly recorded violations and access on mobile devices. The website provides news, answers to common questions, and guidance on checking violations and paying fines. Its educational content covers topics such as vehicle inspection, data updates, and scam warnings, including fraudulent messages promising reduced fines. The service notes that records may not appear immediately while local authorities verify and upload information, and encourages users to confirm any alleged violation through reliable channels before taking action.