Find SSL/TLS certificates from an IP address

Censys

Internet asset and certificate search engine

FOFA

Internet asset search and mapping engine

Shodan

Search exposed internet-connected services

VirusTotal

Analyze files, URLs, domains, and IPs

urlscan.io

Scan and analyze URLs safely

BinaryEdge

Paid internet-scan and asset discovery API

Driftnet

Internet-scan intelligence for domains and IPs

Hunter.how

Search engine for internet-exposed hosts and devices

JA3 Fingerprint

Salesforce TLS client-fingerprint standard

JARM Fingerprint Hash

Salesforce TLS server-fingerprint tool

Microsoft Defender Threat Intelligence

Microsoft passive DNS and TI graph

Netlas.io

Internet scan search engine for hosts, DNS, certs and WHOIS

ONYPHE

ONYPHE internet-wide scanning platform

OpenGraph Intel

Visual OSINT framework that enriches entities via transforms into graphs

Quake

Qihoo 360 internet-asset search engine

Threat Intelligence Platform

Domain/IP threat profile: WHOIS, DNS, SSL, reputation

Validin

Infrastructure-pivot TI platform

ZGrab2

Internet-scale application-layer scanner

abuse.ch SSL Blacklist

SSL/TLS certificate fingerprint blacklist

isMalicious

Reputation lookup for IPs, domains, URLs and hashes

sn0int

Modular semi-automatic OSINT framework with a sandboxed module registry