we all know the fact that without having admin access we can not add the tag manager container snippet. But in this guide, I will show you how you can deploy your google tag manager code snippet on any website and for testing.
Step1: Install the Injector Chrome Extension. This extension runs your code snippet on any website.
Step2: Open any website you want to test your GTM code. For instance, We want to test the scroll tracking tags just created in my new tag manager container.
Step3: Click on the injector icon to open this extension.
Step4: On the injector window, click on the plus(+) icon below the snippets text. On the pop up box, enter the domain name(i.e marketlytics.com just the domain name not the full url) and click on create button.
Step6: From your tag manager account enter the preview mode and open the website in a new tab.
In the preview mode, you can see which tags are firing and which are not.
You can see the scroll tracking tags are fired on a website to which we don't have access to backend code.