Its function is to automatically add a unique parameter, called the GCLID (Google Click Identifier), to your website URL every time a user clicks your ad.
For example, with auto-tagging enabled, your URL will look like this after a click: www.yourwebsite.com/?gclid=Cj0KCQj...
Without auto-tagging, this crucial gclid=
parameter will be missing.
It is the only 100% reliable way to connect a specific ad click to the resulting visitor session on your website.
This connection is essential for:
Accurate Fraud Detection: Without the GCLID, we cannot definitively link suspicious on-site behavior back to a specific paid click. This severely limits our ability to detect fraud accurately.
Detailed Reporting: All of our detailed reports—which break down traffic by campaign, ad group, and keyword—rely on the data passed by the GCLID.
Seamless Integration: Our entire system is built around the presence of the GCLID to ensure perfect data integrity between our platform and your Google Ads account.
Sign in to your Google Ads account.
Navigate to Admin > Account Settings.
Ensure the box for "Auto-tagging" is checked.