ntop is an engineering-driven company that develops both open source and commercial high-speed traffic monitoring applications. The core products include:
ntopng (a web-based traffic monitoring application),
nProbe (a Netflow/IPFIX sensor), and
n2disk (a packet-to-disk application).
All products are based on home-grown technology that includes PF_RING (a high-speed packet processing framework for Linux) and nDPI (a deep packet inspection toolkit). Today ntop is the recognised leader in its domain, and has become an industry-standard application being used by thousands of users across the Internet.