Infrastructure & Network Reconnaissance

Tools that map internet-facing infrastructure — hosts, devices, certificates, DNS and WHOIS history.

Search engine for internet-facing hosts, certs, and services.

Labels internet background scan and attack traffic to separate noise from real threats.

Internet-scale TCP port scanner able to sweep huge address ranges very fast.

Internet-wide scanning and attack-surface search platform.

Free network scanner for host discovery, port scanning and service/OS detection.

All-in-one web toolkit: DNS history, reverse IP, WHOIS.

Search engine for internet-connected devices, servers, and IoT.

Automates threat-intel and reconnaissance gathering.

Identifies the technology stack (CMS, frameworks, analytics) a website runs.

Cyberspace search engine mapping internet-exposed devices, services and components.

Collects emails, subdomains, and names from public sources.