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is-google\n\n[![NPM Version](https://img.shields.io/npm/v/is-google.svg)](https://www.npmjs.com/package/is-google)\n[![Build Status](https://travis-ci.org/roccomuso/is-google.svg?branch=master)](https://travis-ci.org/roccomuso/is-google)\n![node](https://img.shields.io/node/v/is-google.svg)\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 Google crawlers using Google's DNS verification steps\n\nYou may wish to verify that a web crawler accessing your server is Googlebot (or another Google user-agent) and not spammers or other bots scraping your site while claiming to be Googlebot. Since you cannot rely on the `User-Agent` header which is easily spoofed, you need to use DNS look up to verify that the IP address belongs to Google.\n\nThis library implements Google's own verification steps [outlined here](https://support.google.com/webmasters/answer/80553?hl=en).\n\n## Install\n\n`npm install --save is-google`\n\n## Example\n\n```javascript\nconst isGoogle = require('is-google')\n\nlet ip = '66.249.66.1'\nisGoogle(ip).then((outcome) =\u003e {\n  if (outcome) {\n    // it's google.\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  isGoogle(ip).then(outcome =\u003e {\n    if (outcome) {\n      res.status(404).text('Nothing to scan') // block google 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-google","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Froccomuso%2Fis-google","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Froccomuso%2Fis-google/lists"}