Masscan vs Smap
GitHub Stats
About Masscan
Masscan is the fastest Internet port scanner. It can scan the entire Internet in under 6 minutes, transmitting 10 million packets per second from a single machine. It produces results similar to Nmap but operates asynchronously, transmitting packets without waiting for responses. The internal architecture is more similar to scanrand and unicornscan than traditional scanners. It uses a custom TCP/IP stack to avoid the overhead of the operating system's networking stack.
About Smap
Smap is a passive port scanner that replicates Nmap's interface and output format while using Shodan's internet-wide scan data instead of actively probing targets. It accepts the same command-line arguments as Nmap, making it a drop-in replacement for reconnaissance scenarios where stealth is critical. Since Smap queries Shodan's existing database rather than sending packets to targets, it leaves zero network footprint on the target infrastructure. Results include open ports, service banners, and version information that Shodan has previously collected.
Platform Support
Tags
Masscan only
Smap only