We'll create fresh WordPress site with WP Which Fonts? installed. You have 20 minutes to test the plugin after that site we'll be deleted.
This WordPress plugin outputs a list of fonts used on any front end page in the javascript console in case you are logged in as an admin user.
v2.0 – User interface will be added where admins will be able to highlight elements of a selected font family.
V3.0 – More CSS properties besides font-family will be included in the plugin.