What is Google Tag Manager?
We’ve already written elsewhere about the wonderful tool that is Google Analytics. Google Tag Manager (GTM), by contrast, is something most people haven’t even heard of. And even those who have heard of it often confuse it with Google Analytics.
But the two tools are very different beasts.
Before the rise of GTM, you would have needed to hire a developer with an extensive knowledge of coding to enable your website pages to collect this data. GTM makes this process easier. But even GTM requires some technical knowledge to use safely and effectively.