How can I extract the GA4 Measurement ID from the Google data layer?

[Addison]

Yes, you can get the GA4 Measurement ID by inspecting the website’s source code similar to how you would with the Google Universal Analytics Tracking ID. Open the source code of the website (CTRL+U in most browsers), then search (CTRL+F) for “G-“. The GA4 Measurement ID usually starts with “G-” followed by a series of numbers and letters. However, this may not work if the website has chosen to hide the ID or is loading it dynamically. You could also use Google Tag Assistant, a Chrome plugin, to identify Google tags, including GA4 Measurement ID, used on the webpage.

[Jose]

Yes, there is a simple way to get the GA4 Measurement ID. You can use the Google Tag Assistant, a free Chrome extension, to quickly find this information. Once installed, browse to the website you want to get the GA4 Measurement ID from and simply click the Tag Assistant icon. It will display all Google tags found on the site, including Analytics, Google Tag Manager, and others. Then find the Google Analytics 4 tag mentioned in the displayed list and click on it, your GA4 measurement ID will be visible there. Note that it usually starts with “G-“. Keep in mind, however, that this method works only if the website does not block or restrict the visibility of these tags.