Directory
Published directory entries matching your search.
Phonebook.cz is a lookup tool from Intelligence X that lists domains, email addresses, or URLs for a given input domain. Access requires login through an intelx.io account and a paid license. The service states that it searches 313 billion records.
Robtex offers free DNS lookup and network intelligence. It gathers public information about IP numbers, domain names, host names, autonomous systems and routes, indexes it in a database, and provides lookup tools including reverse DNS, Whois and AS macros.
OSINT.sh tool for discovering subdomains connected to a target domain.
ViewDNS.info is a site offering free DNS and IP tools, including Reverse IP Lookup, WHOIS, DNS Records, Subdomain Finder, Port Scanner, IP Location and DNS Propagation Checker. It also provides API documentation for domain, IP and network intelligence, with a Sandbox plan of 250 free trial queries and paid plans from $49 per month for 2,500 monthly queries.
Wappalyzer is a website technology checker that identifies the technologies a site is built with, including CMS and ecommerce platforms, analytics tools, frameworks and infrastructure services. It supports single-domain lookups or bulk analysis of thousands of sites, and can also be used in the browser, in a CRM, or through an API.
OSINT Toolkit Website Information is a collection of tools for researching websites, IP addresses, domains, emails and MAC addresses. It lists lookups including Ping Website, Whois, reverse Whois, network and TLD lookup, IP history and geolocation, MAC vendor lookup, DNS report and header and source code search. The page states that some tools require the IP address, email address, domain name or MAC address of the target.
Google certificate transparency search for checking certificates and HTTPS records.
Python OSINT crawler for extracting URLs, files, endpoints, and related website data.
Cipher387's large OSINT tool collection covering social media, domains, people, maps, and more.
Abusech helps search threat intelligence, IP reputation, domains, and security investigation data.
Abuseipdb helps search threat intelligence, IP reputation, domains, and security investigation data.
Website information page for traffic estimates, site metadata, and audience insights.
Basic Knowledge 101 is a public domain education knowledge base that compiles 18 years of research into a downloadable, constantly updated resource for students, teachers, tutors and self-directed learners. It provides high-quality educational content focused on developing human intelligence, real-life skills, and free thinking. The decentralized, people-funded project plans to launch an AI teaching assistant for student guidance and a 24/7 operational school in the future.
BrightCloud helps search threat intelligence, IP reputation, domains, and security investigation data.
Internet asset search engine for domains, hosts, certificates, and exposed services.
Censys certificate search for exploring TLS certificates, domains, issuers, and transparency logs.
Censys IPv4 search for finding exposed hosts, ports, services, and internet infrastructure.
Searchable archive of exposed panels and misconfigurations found across domains by continuous internet-wide scanning; look up the exposure findings on
OSINT.sh certificate search for finding TLS certificates, domains, and certificate history.
Internet asset search engine for discovering exposed services, hosts, domains, and technologies.
CentralOps collection of DNS, WHOIS, traceroute, email, and network lookup tools.
FullHunt is an internet intelligence infrastructure service that supplies internet asset, service, vulnerability and exploit data through REST APIs, data feeds and an MCP server. It also offers an enterprise platform for external exposure monitoring and a multi-tenant workspace for MSSPs. Pricing is listed for API, Enterprise and OEM access.
OSINT.sh SSL check for testing whether a host appears vulnerable to Heartbleed.
IANA database listing top-level domains, registry operators, and root zone delegation data.
