funnelweb

Detect search engine crawlers by their User-Agent strings.

npm install funnelweb
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funnelweb

Tries to detect if a request is coming from a machine or a person using a regular expression. Bot and browser User-Agent strings sourced from useragentstring.com.

Installation

$ npm install funnelweb

Usage

Funnelweb just takes a user agent string and returns "true" if it's probably a bot, or "false" otherwise.

var funnelweb = require('funnelweb')

funnelweb('GoogleBot') // true
funnelweb('Google Chrome') // false

If you pass it an HTTP request object, it'll read the User-Agent header and do the same:

var funnelweb = require('funnelweb')
  , http = require('http')

http.createServer(function(req, res) {
  var response = funnelweb(req)

  if (bot) {
    res.end('you are a bot')
  } else {
    res.end('you are not a bot')
  }
}).listen(3000)
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