Scan an IP or network subnet for port 80

masscan

  • Network scanner for scanning as fast as possible.
    Best run with elevated privileges. Nmap compatibility run `masscan --nmap` to find out more.
    More information: <https://github.com/robertdavidgraham/masscan>.
  • Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

masscan {{ip_address|network_prefix}} --ports {{80}}

click the source code to copy install masscan on any operating system with command-not-found.com