Ads link to error pages

Check if your website allows URL parameters.

When you link Analytics and AdWords, destination URL auto-tagging is turned on automatically. This feature allows Analytics to track information about clicks on your AdWords ads by tagging your AdWords keyword destination URLs with a gclid= parameter. This parameter is displayed in your landing page URL.


A small number of websites don't allow URL parameters, and consequently serve an error 404 page when a URL contains those parameters. If your site doesn't allow URL parameters, you can lobby your webmaster to allow them, or you can turn off auto-tagging.

To turn off auto-tagging:

  1. Sign in to your AdWords account at
  2. Click the gear icon, and select Account settings.
  3. Make sure you're on the Preferences tab, and click Edit in the Tracking section.
  4. Clear (disable) the Destination URL Auto-tagging checkbox.
  5. Click the Save changes button.

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