npm install isbot --save
isBot(req.headers['user-agent'])
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
:computer: Node.js module that detects bots/crawlers/spiders via the user agent
JavaScript