An Introduction to Google Tag Manager

[Shaha Noor]

An Introduction to Google Tag Manager
By: Angela Petteys

Digital marketing thrives on data. No matter what type of site you have, whether it's a large e-commerce site, a personal website, or a site for a small business, it's essential to understand how people interact with your site. Google Analytics can provide a lot of the important insights you're looking for, but when used alone, it does have its limitations. But by tagging your site and using Google Tag Manager in conjunction with Google Analytics, you're able to collect much more data than you can otherwise.

Tags are snippets of code which are added to a site to collect information and send it to third parties. You can use tags for all sorts of purposes, including scroll tracking, monitoring form submissions, conducting surveys, generating heat maps, re-marketing, or tracking how people arrive at your site. They're also used to monitor specific events like file downloads, clicks on certain links, or items being removed from a shopping cart.

Sites commonly use several different tags and the amount of code needed to create them all can be pretty overwhelming, especially if you're trying to add or edit tags by going directly into the site's source code. Google Tag Manager is a tool with a user-friendly, web-based interface that simplifies the process of working with tags. With GTM, you're able to add, edit, and disable tags without having to touch the source code.

While GTM is, obviously, a Google product, it's hardly limited to just working with tags for other Google services like AdWords or Analytics. You can use it to manage many different third-party tags, including Twitter, Bing Ads, Crazy Egg, and Hotjar, just to name a few. If there's another tag which doesn't have a template in GTM, you can add your own custom code. There are only a few types of tags GTM doesn't work well with.

Source: MOZ