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is-duckduck\n\n[![NPM Version](https://img.shields.io/npm/v/is-duckduck.svg)](https://www.npmjs.com/package/is-duckduck)\n[![Build Status](https://travis-ci.org/roccomuso/is-duckduck.svg?branch=master)](https://travis-ci.org/roccomuso/is-duckduck)\n![node](https://img.shields.io/node/v/is-duckduck.svg)\n[![Dependency Status](https://david-dm.org/roccomuso/is-duckduck.png)](https://david-dm.org/roccomuso/is-duckduck)\n[![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)\n\n\u003e Verify that a request is from DuckDuckBot, the Web crawler for DuckDuckGo\n\nThis library implements DuckDuckGo's own verification steps [outlined here](https://help.duckduckgo.com/duckduckgo-help-pages/results/duckduckbot/).\n\n## Install\n\n`npm install --save is-duckduck`\n\n## Example\n\n```javascript\nconst isDuckDuck = require('is-duckduck')\n\nlet ip = '72.94.249.34'\nisDuckDuck(ip).then((outcome) =\u003e {\n  if (outcome) {\n    // it's duckduck.\n  }\n}).catch(console.error)\n```\n\n### Example with express\n\n```javascript\napp.enable('trust proxy')\n\napp.use((req, res, next) =\u003e {\n  let ip = req.ip || req.connection.remoteAddress\n  isDuckDuck(ip).then(outcome =\u003e {\n    if (outcome) {\n      res.status(404).text('Nothing to scan') // block duckduck crawler\n    } else {\n      next() // it's a user\n    }\n  })\n})\n```\n\n## Tests\n\n`npm test`\n\n## License\n\nMIT\n\n## Author\n\nRocco Musolino [@roccomuso](https://twitter.com/roccomuso)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Froccomuso%2Fis-duckduck","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Froccomuso%2Fis-duckduck","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Froccomuso%2Fis-duckduck/lists"}