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

Online disassembly tool for reviewing binaries, shellcode, and low-level code snippets.

Online HTML editor for writing, testing, and previewing web markup directly in the browser.

Online checksum tool for calculating hashes from text or files for verification and security checks.

Online editor for building and previewing Vega and Vega-Lite data visualizations.

Online assembler for testing x86 and x64 assembly code and viewing machine-code output.

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

ANY.RUN sandbox for interactive malware analysis, behavior monitoring, and file investigation.

Searchable archive of Discord leaks used for research into extremist networks and online communities.

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

Python package template for building command-line OSINT tools with a reusable project structure.

uses advanced search operators (Google Dorks) to find juicy information about target websites.

Digital Methods tool for scraping search engine results and collecting web research data.

Columbus Project is an advanced subdomain discovery service with fast, powerful and easy to use API.

Russian-language guide for reducing online exposure and understanding counter-OSINT practices.

Searchable archive of exposed panels and misconfigurations found across domains by continuous internet-wide scanning; look up the exposure findings on

Maps who links to any domain using the open Common Crawl hyperlink graph. Free, no-signup referring-domain and competitor link-footprint lookups for d

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.

A fast and multi-purpose DNS toolkit from ProjectDiscovery for running DNS probes, resolving records and filtering DNS responses.

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

Threat Intelligence API that detects if a IP address is associated with a VPN, Proxy, TOR or Bots.

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