Search results

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

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

Checker for seeing whether an email appears in the historical Ashley Madison breach dataset.

Official Tor archive providing recent and historical network descriptors for reproducible research.

Public-interest archive preserving leaked and released datasets for journalism and historical research.

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

Tor Project hub for technical reports, open research questions, datasets and research safety guidance.

Research archive containing dark-web authorship verification datasets and baseline models.

Official Tor service distributing bridge relay addresses to users facing network blocking.

National Transportation Library record for research on discovering and cataloging hidden-web resources.

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

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

Open-source research crawler for collecting links and metadata from reachable onion pages.

Tor add-on that helps onion-service operators reduce guard-discovery and related attacks.

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