Find the right starting point for your research.
Explore how Profundis brings hosts, DNS, certificates and domain registration into one workflow.
Shodan alternative
Shodan is widely known as one of the original search engines for internet-connected devices and exposed services.
Explore the comparison →02 · COMPARISONCensys alternative
Censys is widely known for certificate-centric internet scanning and attack-surface management.
Explore the comparison →03 · COMPARISONSecurityTrails alternative
SecurityTrails is widely known for DNS and WHOIS history and subdomain data.
Explore the comparison →04 · COMPARISONBinaryEdge alternative
BinaryEdge is widely known for internet scanning and internet-wide exposure data.
Explore the comparison →05 · COMPARISONFOFA alternative
FOFA is widely known as a cyberspace search engine with a powerful query syntax, including favicon icon-hash search.
Explore the comparison →06 · COMPARISONZoomEye alternative
ZoomEye is widely known as a cyberspace / asset search engine.
Explore the comparison →07 · COMPARISONNetlas alternative
Netlas is widely known as a newer internet-intelligence and attack-surface platform.
Explore the comparison →Inside Profundis
A unified internet-intelligence engine - exposed hosts and services, DNS (live + historical/passive), WHOIS (with reverse/registrant lookups), TLS certificates and virtual hosts - all searchable in one place with a field:value syntax (wildcards, AND/OR/NOT).
Favicon perceptual-similarity search (MMH3 + visual similarity) that finds visually similar favicons, not just exact icon-hash matches - Profundis’s signature differentiator.
An official MCP (Model Context Protocol) server, so AI agents like Claude can call Profundis search as native tools - AI-agent-native distribution.
A full OSINT tools suite: typosquatting scanner, subdomain enumeration, registrant explorer (reverse-WHOIS corporate recon), analytics-ID lookup, domain portfolio analyzer, entity-intelligence flow graph, ASN details and reverse-IP.
A free tier with an anonymous hosts and DNS preview, plus individual Solo and Professional plans. Teams and Business add shared organization workspaces and credits.