challenges.re
challenges.re is a developer resource for coding, documentation, communities, security research, or software tools.
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hashmob.net
Community hash-recovery platform for searching, submitting, and discussing password hash challenges.
github.com
Awesome List is a GitHub repository or organization with source code, releases, documentation, or project resources.
no-fly-list.com
Search page for checking names against a published no-fly-list style dataset.
sanctionssearch.ofac.treas.gov
OFAC search tool for checking sanctions lists, entities, individuals, and compliance records.
rempe.us
Password generator that creates strong passphrases from Diceware-style word lists.
iana.org
IANA database listing top-level domains, registry operators, and root zone delegation data.