Censys

Censys is an internet intelligence platform that maintains an authoritative, continuously updated map of global internet infrastructure, scanning every accessible asset daily. Security teams use Censys to discover unknown internet-facing assets, identify misconfigurations and vulnerabilities, and hunt for threats before attackers exploit them. The platform covers hosts, services, websites, cloud buckets, and ICS/IoT devices across all providers and networks, giving defenders the same visibility as adversaries. Censys also offers an open-source Python SDK and integrations with major security tools including Qualys and recon-ng.