What is Gclid



Auto-tagging or Gclid (Google Click IDentifier) is a setting that is activated from Google Analytics that adds a parameter to each URL that is loaded from a PPC ad.

How does it work?

The Gclid is formed by a code of numbers and letters that serves so that Google can identify each visitor who clicks on a Google Ads ad and lands on the web. This is recorded in different dimensions:

  • Fountain
  • Campaign
  • Ad group
  • Keyword
  • Search term
  • Concordance
  • Device

Advantages of automatic labeling

These are the biggest advantages when using Gclid or automatic labeling.

  • It saves a lot of time since you don’t have to manually tag all the final URLs.
  • Avoids URL tagging errors that can occur when manually tagging URLs with UTMs.
  • Goals and transactions can be easily imported from Google Analytics into Google Ads conversion tracking.
  • You have the possibility of havingmore detailed Google Analytics reports.

How do I activate the Gclid?

The steps to follow are:

  1. Sign in to Google Ads.
  2. Click Settings,which is located in the menu on the left.
  3. Enter the tab called Account Settings.
  4. Click on the “Auto-tagging” section.
  5. Select “tag my ad’s destination URL”. Disabling auto-tagging leaves that action disabled.
  6. Save the settings.


These are the most outstanding features that the Gclid or automatic labeling has:

  • You can import conversions registered in Google Ads into Google Analytics.
  • Data from Google Ads campaigns to Google Analytics such as costs, clicks, CTR, among many others, are synchronized.
  • You can even measure conversions in all browsers.
  • With automatic tagging you can import metrics and conversions from Google Analytics to Google Ads such as revenue, bounce rate, average session duration, attribution, etc …

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