yago
Search operators
  • "quoted phrase" — prefer results where the words appear adjacently
  • -word — exclude a word
  • site:example.org — one host only
  • inurl:blog — URL must contain text
  • tld:de — top-level domain
  • filetype:pdf — document type
  • language:ru — page language
  • author:name — page author metadata
  • near — all words close together
  • /date — newest results first
YaGoSeek — free software under the GNU AGPL v3.
Searches fan out to peers in the YaCy network, which see your query terms; results are labelled by where they came from (local this node's index, peer another node, web an external provider that receives your query, whose pages may be queued for this node to crawl).