No matter if you want to use the Google gtag or the Google Tag Manager:
Open your DragDropr page, click on “Page Settings” and go to “Add Scripts” menu.
Put the gtag.js Script which you find in your Analytics account (Settings > Property > Tracking-Information > Tracking Code) in the head section.
Important: remove the comment line (<!-- Global site tag (gtag.js) - Google Analytics --> ) or the gtag will not work properly as any script added to DragDropr has to start with <script> and finish with </script>.
Click on SAVE, then on PUBLISH and choose your preferred option.
Google Tag Manager
Copy the GTM code you can find in your Google Tag Manager account (Admin > Install Google Tag Manager)
2. Put the <script> part in the head section. Leave out the comments (<!-- Google Tag Manager --> and <!-- End Google Tag Manager --> ) so that <script> is at the beginning and</script> is at the end.
3. Put the <noscript> part in the body start section. Again, leave out the comments so that everything starts with <noscript> and finishes with </noscript>.
Click on SAVE, then click on PUBLISH and choose your preferred option.
Bonus: What’s the <noscript> part of GTM doing?
A <noscript> always has to be placed in the <body> section of a page or not be placed on a page at all. Since <noscript> initiates an iFrame and iFrame is not supported in the <head>, your website’s code will become invalid.
Most of the functions of GTM do not work with <noscript>. In fact, only some of the most prominent built-in-variables like Page Hostname, Page Path, Page URL will work. You can find a full list of supported built-in and user-defined variables at Analyticsmania.