Censys on a Mac
Internet-wide host & certificate search (cloud API) · Security Tools
Censys is the other major internet-wide scan index alongside Shodan, with particularly strong certificate data; useful for finding every host presenting a certificate for your domain, including ones you'd forgotten. Use it for external attack-surface review of your own estate: which of my addresses answer, on what ports, with which certificates. Cloud API (API ID + secret); store the credentials below.
Run Censys with FrontierStack
Install or connect Censys; then check its status, ports and certificate from FrontierStack. The same screen links to firewall checks, Malware Audit and backups where they apply.
Run it from your Mac.
FrontierStack installs, monitors and secures services on this Mac and on linked servers.
Download FrontierStack