Censys, Ten Years Later: Evaluating Censys’ Performance

This Censys analysis evaluates its scanning platform versus peers using random IPv4 scans, independent verification, and honeypots, finding Censys achieves higher true coverage, 92% accuracy, fresher data, broader port and ICS protocol visibility, and much faster time-to-discovery; the report attributes these advantages to aggressive pruning of stale results, deduplication, full 65K port coverage, and layer-7 protocol verification that reduces false positives.