Do you track QR codes' data for your own URLs in Google Analytics?

To ensure you are tracking the traffic taken to your website from a QR code, it's important to add UTM parameters to the URLs you are using to create your QR codes.

This will allow you to see users, bounce rate, sessions, events, conversions and more in Google Analytics.

The UTM parameters in a URL identify the campaign that refers traffic to a specific website, and attributes the browser's website session and the sessions after that until the campaign attribution window expires to it. The parameters can be parsed by analytics tools and used to populate reports.

Source: Wikipedia

Important: this only works for your own domain or domains that you have access to in your Google Analytics account.

Google's Campaign URL Builder is a free tool that allows you to easily add campaign parameters to URLs so you can measure Custom Campaigns in Google Analytics.