NOX is an online information-search service operated by NOX INTERNATIONAL, a company registered in Lebanon. It helps users compile reports about people using details such as a name, phone number, email address, photograph, vehicle information, or social media nickname. According to the service, searches draw on more than 400 open sources and can identify social media and messaging accounts, contact details, and other digital traces.

NOX also offers photo-based searches and reports covering areas such as financial information, debts, court cases, travel records, vehicle and property details, and possible data leaks or fake accounts. The site presents these tools for checking acquaintances, reviewing personal information, and researching vehicles before purchase. Customers can buy individual reports or subscriptions, with listed payment options including bank cards, instant transfers, cryptocurrency, and payments through Telegram.

NOX also provides a Telegram bot, publishes news and articles, and offers partner and referral programs. The website states that using the service is anonymous and secure