It is something web developers use to manage all the trackers and libraries that they use. When you look at certain things or do certain things on a page (move mouse, scroll, some typing and clicks) the developer wants to record that as an event so that they can analyze what users do. Google Analytics, Omniture, Amplitude and a bunch of other systems collect and store these events for different kinds of analysis. Rather than do everything several times (once for each type of analysis they want), they can just use the tag manager and have it sort everything out so it all works neatly. As a user it makes little difference, you are still being watched and tracked as much as ever, just the web page code is cleaner! (I think this is correct but please correct me if I got it wrong - it had been almost a decade since I touched this stuff). Answer from Deleted User on reddit.com
Google Support
support.google.com › tagmanager › answer › 12811173
Your guide to Google Tag Manager - Tag Manager Help
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments (aka tags) on your website or mobile app. These guides wil
Google
marketingplatform.google.com › about › tag-manager › benefits
Benefits of Website Tag Management - Google Tag Manager
Tag Manager gives you the ability to add and update your own tags for conversion tracking, site analytics, remarketing, and more. There are nearly endless ways to track activity across your sites and apps, and the intuitive design lets you change ...
Videos
01:09:03
Google Tag Manager tutorial for beginners (2025) || GTM Course ...
12:52
Google Tag Manager Tutorial for Beginners 2025 (GTM Tutorial + ...
06:37
What is Google Tag Manager? - YouTube
01:01:26
Google Tag Manager Tutorial for Beginners (2024) with New Google ...
01:33:28
Google Tag Manager Tutorial for Beginners (2022) - YouTube
Google Tag Manager Explained in 100 seconds
Reddit
reddit.com › r/explainlikeimfive › eli5 what is google tag manager ? does it track everything i do on my phone and can i disable it ?
r/explainlikeimfive on Reddit: ELI5 What is Google Tag Manager ? Does it track everything I do on my phone and can I disable it ?
March 23, 2022 - It is something web developers use to manage all the trackers and libraries that they use. When you look at certain things or do certain things on a page (move mouse, scroll, some typing and clicks) the developer wants to record that as an event ...
Voluum
voluum.com › blog › google-tag-manager-tracking
Google Tag Manager Tracking: The Complete 2023 Guide for Marketers | Voluum Blog
September 18, 2025 - Google Tag Manager also enables Google Analytics to gather more detailed data. With it, you can set up custom events and track custom dimensions. Additionally, if you use a performance ad tracker such as Voluum, it can help you manage Voluum ...
Google
tagmanager.google.com
Google Analytics
Google Analytics lets you measure your advertising ROI as well as track your Flash, video, and social networking sites and applications.
Orbit Media Studios
orbitmedia.com › home › what is google tag manager and why use it? the truth about google tag manager.
What Is Google Tag Manager and Why Use It? The Truth About Google Tag Manager. | Orbit Media Studios
May 2, 2024 - Although it is “easy” to manage multiple tags in GTM, there is a learning curve. Once you’re over the hump, GTM is pretty slick about what you can track. ... Tags are snippets of code or tracking pixels from third-party tools. These tags tell Google Tag Manager what to do.
Adjust
adjust.com › glossary › what is google tag manager?
Google Tag Manager explained for app marketers | Adjust
In short, marketers use Tag Manager to specify what information to send to Google Analytics, such as track type, event tracking parameters, action taken by user, etc. In Tag Manager, marketers need organizational buckets to put different groups ...
Google
developers.google.com › tag platform › tag manager
About Google Tag Manager | Tag Platform | Google for Developers
Unify Google's ads and marketing site measurement tools under a single implementation.
Whotracks
whotracks.me › trackers › google_tag_manager.html
Google Tag Manager | WhoTracks.Me | Ghostery
Owned by Google https://marketingplatform.google.com/about/tag-manager/ Tracker Rank · 1 / 850 · Dangerously prevalent · Operates Under · googletagmanager.com googletagservices.com · Suggest a change · 36.91% of web traffic is tracked by Google Tag Manager ·
Google
marketingplatform.google.com › about › tag-manager
Website Tag Management Tools & Solutions - Google Tag Manager
Tag Manager supports and integrates with all Google and third-party tags.
Informaticsinc
informaticsinc.com › blog › march-2021 › 5-web-metrics-you-should-be-tracking-google-tag-manager
5 Metrics to Track in Google Tag Manager | Informatics Inc.
January 11, 2024 - Google Tag Manager can also track how far down a page a user scrolls, providing insight into users’ interest and engagement with your content. This functionality can even be combined with tags tracking time on site to eliminate users who land on your page and then ignore the computer, helping you zero in on the most valuable user interactions. Page Scroll Depth is even more useful when combined with third-party services like Hotjar (used here at Informatics), which uses heat maps to visualize how users travel down a page.
Google Support
support.google.com › tagmanager › answer › 6102821
Introduction to Tag Manager - Tag Manager Help
Google Tag Manager is a tag management system that allows you to set up and manage tags on your site without changing your website's code. To use Tag Manager, you add 2 snippets of code to each page of your website.
Semrush
semrush.com › blog › what is google tag manager & how does it work?
What Is Google Tag Manager & How Does It Work?
January 4, 2024 - Easy configuration of many popular tools: Easily add tools and tracking tags to your website code using code snippets or existing templates (e.g., for Google Analytics, Pinterest, Google Ads, etc.) from the Community Template Gallery · Tag storage and management: Google Tag Manager consolidates marketing tags and tracking codes in one place and injects them into website code as needed.
Oberlo
oberlo.com › ecommerce-wiki › google-tag-manager
What is Google Tag Manager (GTM)? - Key benefits of using GTM
Instead, the two work harmoniously to give marketers an easy-to-manage, flexible system of tracking various analytics. Google tag manager enables users to deploy tracking code on chosen pages and Google analytics uses that code to track various ...
Analytics Mania
analyticsmania.com › post › reasons-why-you-should-use-google-tag-manager
12 Reasons Why You Should Use Google Tag Manager in 2025
April 4, 2025 - Google Tag Manager is free software from Google that allows you to install various types of code (tags) to your website. Good examples of tags are Google Analytics tracking codes, Google Analytics event codes, Google Ads conversion scripts, ...
MeasureU
measureu.com › home › 7 “must have” google tag manager tracking tags
7 "Must Have" Google Tag Manager Tracking Tags - MeasureU
July 10, 2024 - As you're probably aware, Google Tag Manager (GTM) simplifies the often difficult (but necessary) task of adding tracking tags to your website.
Dynomapper
dynomapper.com › blog › 21-sitemaps-and-seo › 476-what-is-google-tag-manager-and-how-does-it-work
What is Google Tag Manager and How Does It Work?
Google Tag Manager (GTM) is an online tool that can help you with the tracking codes and collecting analytics on your website. It can also be used in conjunction with Google Analytics to make collecting this information so much easier.
Fillout
fillout.com › help › google-tag-manager
Track data with Google Tag Manager
Track activity and monitor data across your web pages with Google Tag Manager and Fillout forms. Check conversions and ROI through form responses in your website.
mParticle
mparticle.com › blog › how-does-google-tag-manager-work
How does Google Tag Manager work? - mParticle
Tags are the actual pieces of code that allow you to track user behavior on your web pages and mobile apps. Google Tag Manager offers built-in tag templates that help you set up tracking quickly.
Analytics Mania
analyticsmania.com › post › google-tag-manager-click-tracking
Google Tag Manager Click Tracking with GA4 (2025)
October 16, 2025 - For example, is anyone actually using the main navigation links, or do they prefer using the search bar? Are promotional banners getting attention, or are they being ignored? These insights can guide your website design, improve your user experience, and help you place your most important calls to action where they will have the most impact. With Google Tag Manager, you can track virtually any click (except some edge cases, like iframes), but some of the most popular and valuable use cases include: