Search results

National Academies chapter explaining deep-web content, discovery limits and information retrieval.

Explains federated searching across government science databases often described as the deep web.

Analyst posts on deep- and dark-web activity, threat actors and underground communities.

Explains how metadata and structured access affect discovery of database-backed and deep-web content.

Identity Theft Resource Center database documenting publicly reported US data compromises.

DARPA research program that developed domain-specific search methods for hard-to-index web content.

Guide to search tools and databases that surface information outside conventional web indexes.

Federated search portal querying science databases and repositories across many countries.

University guide to finding databases and information that ordinary search engines do not index.

RAND study of illicit online markets and the operational lessons they present for public policy.

Research article cataloging ransomware leak sites and explaining how their status is tracked.

Search engine for finding indexed Tor onion services, with abuse filtering and public documentation.

Open-source command-line tool that queries multiple onion search engines and exports results.

Open-source interface and API project for searching indexed onion content.

Research study on identifying and understanding search interfaces that expose hidden-web databases.

Leak-awareness search page for checking whether identifiers appear in exposed datasets.

Python package that queries several search engines to find indexed Tor onion pages.

Searchable timeline of publicly reported breaches with affected organizations, dates and data types.

Research paper on integrating data from web databases that are not directly indexed by search engines.

Research and explainers on dark-web investigations, criminal forums and threat-intelligence methods.

WikiLeaks archive for searching the Sony email release and related historical documents.

ERIC record for a guide to finding specialized databases and other web content missed by search engines.

Public-health research measuring harmful-content availability and searches on the Tor network.

Official interface for exploring public Tor relay and bridge metadata from Onionoo.