Whatoblock is described as 'Real-time cybersecurity threat intelligence platform with global botnet tracking, scanner detection, interactive threat search, and a live threat map' and is an website in the security & privacy category. There are more than 10 alternatives to Whatoblock, not only websites but also apps for a variety of platforms, including Linux, Mac, Windows and BSD apps. The best Whatoblock alternative is Nmap, which is both free and Open Source. Other great sites and apps similar to Whatoblock are Angry IP Scanner, Shodan, Censys and Criminal IP.