If speed is your only goal, Masscan is known as the fastest port scanner available, capable of scanning the entire internet in under six minutes. Conclusion
Quickly finding which devices on a network are hosting web servers or database services.
Do you have a specific or operating system where you're looking to run these scans?
KPortScan 3.0 is often distributed through third-party "grey market" websites or forums rather than an official developer portal. Because of this, many versions found online have been bundled with .