Technology and tools
What is Censys?
An internet scanning and search platform, similar to Shodan, with detailed data on hosts, services and certificates.
Censys scans the public internet and indexes hosts, services and certificates. Like Shodan, it lets analysts search by software, port, certificate fields and network, but it has a strong focus on certificate data and structured, queryable records.
Infrastructure hunters often use both, because their scan coverage and data fields differ. A query that finds nothing in one may find the server in the other.