Ahmia Dark Web Tor Search
The only (only?) search engine indexing Tor sites … that is accessible on a normal www site: Ahmia is a
Search
Search engines and search tools, from the most famous ones to very specialized. Note that searches for standards and regulations have their dedicated Standards category and are therefore not included here.
The category lists specialized search engines, scientific paper and preprint search, patent search and clinical trial search. Reverse image search, free image search engines, material, chemical and electronic component databases and web archives cover other kinds of content. Darknet search engines, blockchain explorers, IoT device search, FTP file search and plagiarism checkers complete it.
Clinical Trials Database
Search the database of privately and publicly funded clinical studies in US and around the world: ClinicalTrials.gov is a centralized registry
PubMed Central Medicine Library
Search the 10.4+ million full-text medical archives of the National Library of Medicine: PubMed Central (PMC) is a digital repository
IRC Channel and Topic Search
Simple but effective tool to search for an IRC channel, on more than 500 IRC networks, on any topic: Netsplit.de
Access Structures, CCDC and FIZ Karlsruhe Crystal Databases
World biggest cristal structures repository. For each organic crystal, get its chemical diagram and an interactive 3D model view of
Internet Archive: archive.ph
In a very similar way to the well known Wayback Machine, it will save any given URL you provide and
Bitcoin Address Lookup
Provide any Bitcoin address and it will return any related information, such as last transactions, email, attached URL and other
Blockscan: 25+ Blockchain Explorers
Inspect and explore more than 25 different blockchains to view users, portfolios and transactions: Blockscan functions as a comprehensive search engine
Napalm FTP Search
Search public FTP repository. Direct link to download is then provided: SearchFTPS, also known as the NAPALM FTP Indexer, is
Academic Torrents Search & Repository
Torrent files repository and directory of scientific and educational resources: Academic Torrents is a community-maintained distributed repository that facilitates the scalable