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Hash lookup service for checking password hashes against large precomputed cracking databases.

Domain intelligence tool for researching WHOIS data, ownership patterns, and connected domains.

Fortinet threat intelligence portal for security updates, IP reputation, malware, and web filtering data.

Guide to free and open source privacy tools, safer apps, and alternatives to data-heavy services.

Python package for collecting public GETTR data for research and monitoring workflows.

Google notebook environment for running Python code, experiments, data analysis, and research workflows.

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

Abuseipdb helps search threat intelligence, IP reputation, domains, and security investigation data.

Internet intelligence tool for looking up ASN details, IP information, and BGP routing data.

Threat map from FireEye/Mandiant showing cyber activity and attack visualization data.

Calculator for converting and evaluating infix, postfix, and prefix expressions.

Searchable public database related to suspected terrorism records and security research references.

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

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

A database of IP addresses that have been part of the Tor network. It answers the question whether there was a Tor relay running on a given IP address

Security research toolkit for extracting, transforming, and analyzing data during investigation workflows.

Hash search database for looking up password hashes and contributed recovery results.

IANA database listing top-level domains, registry operators, and root zone delegation data.

Research database covering Russian aggression, military activity, and related open-source evidence.

Research paper and dataset about internet-wide scanning and host discovery from 2012.

Shodan InternetDB lookup for checking open ports, vulnerabilities, tags, and host data by IP.

NERD IP reputation search for checking network entities, abuse data, and security signals.

IP geolocation API providing city, country, timezone, ASN, and currency data from IP addresses.

A comprehensive IP intelligence database and API for accurate geolocation, ASN mapping, and VPN/Tor/Proxy detection.