m.facebook.com / referrals for Safari in Google Analytics Improperly Tracked - Stack Overflow
Default Report 7
How to recognize Facebook User-Agent - Stack Overflow
How to know if someone I have been talking to on Hangouts who is in the military is real or a scammer - Quora
GitHub - jiusanzhou/surferua: Surfer User-Agent (surferua) is a lightweight and high performance Golang package that generate HTTP User-Agent strings with particular attention to device type. 高性能 Golang 爬虫浏览器随机库。