Google Tag Manager for WordPress

Google Tag Manager for WordPress | Thomas Geiger


Google Tag Manager (GTM) is Google’s free tool for everyone to manage and deploy analytics and marketing tags as well as other code snippets
using an intuitive web UI. To learn more about this tool, visit the official website.

This plugin places the GTM container code snippets onto your wordpress website so that you do not need to add this manually.
Multiple containers are also supported!

The plugin complements your GTM setup by pushing page meta data and user information into the so called data layer.
Google’s official help pages includes more details about the data layer.

You can also add your Google Optimize container with the recommended code setup

Some parts of the plugin require PHP 5.6 newer.
PHP 7.0 or newer is recommended.

Please note that PHP 5.6 is nearing its end of life cycle thus it is recommended to upgrade. If you are not sure which version you are using, please contact
your hosting provider for support.

GTM container code placement

The original GTM container code is divided into two parts: The first part is a javascript code snippet that is added to the <head>
section of every page of the website. This part is critical to enable all features of GTM, and this plugin helps to place this part
correctly on your site. The second part is an iframe snippet that acts as a failsafe/fallback should users’ JavaScript be disabled.
Google recommends – for best performance – to place this code snippet directly after the opening <body> tag on each page.
Albeit not ideal, it will work when placed lower in the code. This plugin provides a code placement option for the second code snippet.
Inherently, WordPress does not offer a straight-forward solution to achieve this, however Yaniv Friedensohn showed me a solution
that works with most themes without modification:

I added this solution to the plugin, currently as an experimental option.

Sites using the Genesis Framework should choose the “Custom” placement option. No theme modification is needed for this theme
however, the Google Tag Manager container code will be added automatically.

Basic data included

  • post/page titles
  • post/page dates
  • post/page category names
  • post/page tag names
  • post/page author ID and names
  • post/page ID
  • post types
  • post count on the current page + in the current category/tag/taxonomy
  • logged in status
  • logged in user role
  • logged in user ID (to track cross device behaviour in Google Analytics)
  • logged in user email address (to comply with GTM terms of service do not pass this on to Google tags)
  • site search data
  • site name and id (for WordPress multisite instances)

Browser / OS / Device data


  • browser data (name, version, engine)
  • OS data (name, version)
  • device data (type, manufacturer, model)

Data is provided using the WhichBrowser library:

Weather data


Push data about users’ current weather conditions into the dataLayer. This can be used to generate weather-related
audience/remarketing lists on ad platforms and allows for user segmentation in your web analytics solutions:

  • weather category (clouds, rain, snow, etc.)
  • weather description: more detailed data
  • temperature in Celsius or Fahrenheit
  • air pressure
  • wind speed and degrees

Weather data is queried from Open Weather Map. Depending on your websites traffic, additional fees may apply:

An (free) API key from OpenWeatherMap is required for this feature to work. is used to determine the site visitor’s location. A (free) API key from is required for this feature to work:

Media player events


Track users’ interaction with any embedded media:

  • YouTube
  • Vimeo
  • Soundcloud

DataLayer events can be chosen to fire upon media player load, media is being played, paused/stopped and optionally when
the user reaches 10, 20, 30, …, 90, 100% of the media duration.

Tracking is supported for embedded media using the built-in oEmbed feature of WordPress as well as most other media plugins
and copy/pasted codes. Players injected into the website after page load are not currently supported.

Scroll tracking

Fire tags based on how the visitor scrolls from the top to the bottom of a page.
An example would be to separate “readers” (who spend a specified amount of time on a page) from “scrollers”
(who only scroll through within seconds). You can use these events to fire Analytics tags and/or remarketing/conversion tags
(for micro conversions).

Scroll tracking is based on the solution originally created by

  • Nick Mihailovski
  • Thomas Baekdal
  • Avinash Kaushik
  • Joost de Valk
  • Eivind Savio
  • Justin Cutroni

Original script:

Google Ads remarketing

Google Tag Manager for WordPress can add each dataLayer variable as a Google Ads remarketing custom parameter list.
This enables you to build sophisticated remarketing lists.

Blacklist & Whitelist Tag Manager tags and variables

To increase website security, you have the option to white- and blacklist tags/variables.
You can prevent specific tags from firing or the use of certain variable types regardless of your GTM setup.

If the Google account associated with your GTM account is being hacked, an attacker could easily
execute malware on your website without accessing its code on your hosting server. By blacklisting custom HTML tags
and/or custom JavaScript variables you can secure the Tag Manager container.


Google Tag Manager for WordPress integrates with several popular plugins. More integration to come!

  • Contact Form 7: fire an event upon successful form submission
  • WooCommerce:
    • Classic e-commerce:
      • fire an event when visitors add products to their cart
      • capture transaction data to be passed to your ad platforms and/or Analytics
      • capture necessary remarketing parameters for Google Ads Dynamic Remarketing
    • Enhanced e-commerce (beta):
      • implementation of Enhanced E-commerce
      • Does not support promotions since WooCommerce does not have such a feature (yet)
      • Does not support refunds


  1. Upload duracelltomi-google-tag-manager-for-wordpress to the /wp-content/plugins/ directory
  2. Activate the plugin through the ‘Plugins’ menu in WordPress
  3. Go to Settings / Google Tag Manager and enter your Google Tag Manager container ID and set additional options

Plugin author

Thomas Geiger

Plugin official website address
If you encounter problems in using the Google Tag Manager for WordPress plugin, you can comment below, and I will try my best to help you solve the problem

Leave a Comment

Your email address will not be published. Required fields are marked *