metrics = require('./Metrics') module.exports = log: (req)-> if req.headers["user-agent"]? userAgent = req.headers["user-agent"].toLowerCase() if userAgent.indexOf("google") != -1 metrics.inc "crawler.google" else if userAgent.indexOf("facebook") != -1 metrics.inc "crawler.facebook" else if userAgent.indexOf("bing") != -1 metrics.inc "crawler.bing"