Track tags in Google Analytics? [closed]

Take a look at custom variables for Google Analytics. In that case you would need to parse all used tags as one string (maybe separated by | for example), because it’s better to use one variable name and each variable can take one value per pageview.

Another option would be using events, using a category (named tags for example), which you could repeat for all tags used on a page. I think that is the best solution, since you can fire the same event category multiple times in one pageview. And this way you can search and compare the values within GA easily.