Detect Mobile User Agent in Nginx

You might notice that some website have 2 different URL for mobile view and desktop view like Facebook. Facebook has m.facebook.com for mobile view and facebook.com for desktop view. Usually, the main website, they don’t care about responsive design. If customer want to well fit the in mobile view, just use the another website which only for mobile view like m.facebook.com (with subdomain of m indicate mobile).

In my opinion, for some reason why developers or companies separate their website responsiveness because building a responsive website is quite painful where need…