tobie/ua-parser — pull request #377 by yurigorokhov (2014-04-14 22:26:54+00:00)
Title: Adding Googlebot/2.1 as spider

Adding the following UserAgent Header as a Spider:

Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)

Source: https://support.google.com/webmasters/answer/1061943?hl=en