Auto-tagging: Definition

A feature that automatically adds a parameter to your URLs to help you track offline conversions and report on your ad performance using website tracking programs like Google Analytics.

  • Auto-tagging will attach the 'Google Click Identifier' (GCLID) parameter to the URL that your customers click, and that will help you tell which ad was clicked for each visit to your site.
  • Google Analytics and similar programmes can use the information from auto-tagged URLs to tell you which Google Ads keywords brought a visitor to your site, which campaign that keyword was from and how much that click cost. You can also use this information to import complex conversions into Google Ads, whether online or offline.


If you use an API, the GCLID parameter can also send more information from each click to the Click Performance report of the Google Ads API.

How to check if auto-tagging is turned on

The new Google Ads experience is now the exclusive way for most users to manage their accounts. If you’re still using the previous AdWords experience, choose Previous below. Learn more

Auto-tagging is turned off by default. You can check whether auto-tagging is on, as well as turn it on or off, by clicking the 'Billing, Account settings and Help' menu (), selecting 'Account settings' then looking at the 'Tracking' section of the 'Preferences' page.


Note: When you create a new conversion action, auto-tagging will be activated automatically if you’re not already using cross-account conversion tracking. If you're using cross-account conversion tracking, you’ll need to enable auto-tagging in each of your child accounts manually according to the steps above.

See Google Analytics data within your Google Ads account
Link Google Analytics and Google Ads
Learn about the benefits of auto-tagging
Import offline or complex conversions

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