There are a number of reasons why you may want to remove Marketo’s tracking code on links. Sometimes the tracking code interferes with other websites and other times you may not want to track native template unsubscribe links.
It is very simple to remove the Marketo tracking code. Simply select the link that you want to edit and select Insert/edit link in the HTML editor bar.
In the Insert/edit link window, select the Advanced tab. Then enter in “mktNoTrack” in the Class field. Click Apply. By doing this, your link will no longer contain the Marketo tracking code.
If your link lives within an email template, simply insert class=”mktNoTrack” in the tag.
Example: (your link text)
Remember: Removing the Marketo Tracking Code disables cookie identification for a lead and form auto-completion when they click that link.
Source: Marketo Community