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OSINT.sh tool for discovering subdomains connected to a target domain.

Tools

intelx.io

Intelligence X VIN tools page for vehicle lookup, VIN search, and car-related investigation workflows.

Technology lookup tool for detecting frameworks, CMS platforms, analytics, and website software.

One-plus website information page for checking domains, technology, DNS, and site details.

Free and open-source domain and infrastructure research toolkit combining DNS, RDAP, WHOIS, passive subdomain discovery, IP and ASN data, email authen

Free DNS, WHOIS, DKIM discovery, SPF/DMARC analysis and blacklist checks with plain-English results, no signup.

Retrieve DNS records, subdomains, SSL certificates and WHOIS / RDAP data for a given website.

Is a free platform offering network diagnostic tools (ping, traceroute, MTR, DNS, WHOIS, HTTP, etc.) tailored for ISPs and infrastructure professional

Who.is is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.

Arkvoters.com helps search voter-registration records, voter databases, or public election-related data.

Vehicle history report service for checking VIN records, title events, accidents, and market data.

Vehicle history report service for checking VIN records, damage, mileage, photos, and title data.

Online car model recognition tool for identifying vehicles from uploaded images.

Coloradovoters.info helps search voter-registration records, voter databases, or public election-related data.

Connvoters.com helps search voter-registration records, voter databases, or public election-related data.

Threat intelligence search service for checking IPs, domains, hashes, and security indicators.

Facebook search tool for finding public posts, profiles, places, and people using targeted filters.

Google certificate transparency search for checking certificates and HTTPS records.

Python OSINT tool that checks whether a phone number is linked to accounts on popular online services.

Public PGP key server for searching and retrieving encryption keys by email, name, or key ID.

US national sex offender public website for searching registries by name, location, or jurisdiction.

People-search service for looking up phone numbers, addresses, names, and public contact records.

Hash recovery service for checking password hashes and related encrypted password formats.

Python OSINT crawler for extracting URLs, files, endpoints, and related website data.