Package Exports

isbot

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Readme

isbot 🤖/👨‍🦰

Detect bots/crawlers/spiders using the user agent string.

install

Usage

const isbot = require('isbot');

Simple detection

// Nodejs HTTP
isbot(request.getHeader('User-Agent'))

// ExpressJS
isbot(req.get['user-agent'])

// User Agent string
isbot('Googlebot/2.1 (+http://www.google.com/bot.html)') // true
isbot('Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36') // false

Add crawler user agents

Add rules to user agent match RegExp

isbot('Mozilla/5.0') // false
isbot.extend([
    'istat',
    'httpclient',
    '^mozilla/\\d\\.\\d$'
])
isbot('Mozilla/5.0') // true

Remove matches of known crawlers

Remove rules to user agent match RegExp (see existing rules in list.json file)

isbot('Google Page Speed Insights') // true
isbot.exclude([
  'Google Page Speed Insights',
  'Chrome-Lighthouse'
])
isbot('Google Page Speed Insights') // false

Verbose result

Return the respective match for bot user agent rule

isbot.find('Googlebot/2.1 (+http://www.google.com/bot.html)') // 'bot'

Data sources

Crawlers user agents:

Non bot user agents:

Manual list (source: whatismybrowser.com)