vocabulary: duckduckgo
version: '0.1'
description: >-
  Domain vocabulary for DuckDuckGo - covering the Instant Answer API, Duck.ai
  chat proxy, !bang redirect system, Tracker Radar dataset, Email Protection,
  and Privacy Pro.
terms:
  - term: Instant Answer
    definition: >-
      Zero-click "answer box" returned at the top of DuckDuckGo search
      results, sourced from Wikipedia and other structured providers.
  - term: Abstract
    definition: Free-text topic summary in an Instant Answer response.
  - term: AnswerType
    definition: Type discriminator on the Answer field (e.g. calc, color_code, ip).
  - term: '!Bang'
    definition: >-
      Query-prefix shortcut (since 2008) that 302-redirects to another site's
      own search. Example: !w filter bubble -> Wikipedia search for
      "filter bubble". Thousands of registered bangs.
  - term: Redirect
    definition: >-
      Field in the Instant Answer response populated when the query resolves
      to a !bang; contains the destination URL.
  - term: Disambiguation
    definition: Response shape (Type == 'D') listing multiple possible meanings of an ambiguous term.
  - term: Tracker Radar
    definition: >-
      DuckDuckGo's open dataset of third-party domains observed on the web,
      with prevalence, fingerprinting score, cookie behavior, ownership, and
      privacy-policy metadata. Distributed under CC BY-NC-SA 4.0.
  - term: Duck.ai
    definition: >-
      Anonymous chat proxy at duck.ai routing prompts to third-party LLMs
      (Claude, GPT, Llama, Mistral). DuckDuckGo strips identifiers and
      enforces "no retention / no training" on user prompts.
  - term: Email Protection
    definition: >-
      Free DuckDuckGo service issuing @duck.com forwarding addresses that
      strip trackers from inbound mail before delivering it to the user's
      real inbox.
  - term: Privacy Pro
    definition: >-
      Paid bundle - DuckDuckGo VPN, Personal Information Removal, and
      Identity Theft Restoration.
  - term: Scam Blocker
    definition: >-
      Browser feature (expanded June 2025) protecting against phishing
      sites, malware, and other common online scams.
  - term: Tracker
    definition: A third-party domain that loads on a website to collect user data.
  - term: Fingerprinting
    definition: Browser-fingerprinting score (0-3) assigned in Tracker Radar to indicate fingerprinting behavior.
  - term: Prevalence
    definition: Fraction (0-1) of crawled sites on which a tracker domain appears.