Checking your User Agent

Checking your User Agent string from your browser is quite simple:

navigator.userAgent;
// returns UA string, eg 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36'

You can actually notice your User Agent string change by querying navigator.userAgent after enabling responsive mode in your browser. For me, toggling on the responsive toolbar in Arc switched my user agent to the following:

'Mozilla/5.0 (iPhone; CPU iPhone OS 16_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.6 Mobile/15E148 Safari/604.1'