How to provide option to opt out of Marketo Tracking cookie for website?

[Anonymous]

Hi,

We are trying to find a good way to provide site visitors the ability to opt out of the Marketo tracking cookie. What is the recommended way to stop/disable the Marketo tracking cookie from our website? We are exploring different options to provide a button to a user to allow for opting out of the Marketo tracking cookie.

The goal is to allow a site visitor an option to click a button/link and even if there is already a Marketo tracking cookie, to basically stop tracking any more page visits, clicks, etc for Marketo.

[Anonymous]

I found this in some documentation.  Does anyone know how to configure this?

Opt Out from a Specific Website

Even if a visitor doesn't choose Do Not Track for all websites, the marketer can offer them the ability to opt out from a specific website.

1. The marketer adds a link on the website to enable users to opt out from Marketo tracking. It's normally placed under Privacy Settings.

2. The user is directed to Marketo's opt-out page.

3. The user fills out a form (like the one below), adding the URL of the website they don't want tracking them, and clicks the link.

This activates JavaScript that tells Marketo not to track the user for that website.

[SanfordWhiteman]

This activates JavaScript that tells Marketo not to track the user for that website.

It doesn't, though.

The way to turn off setting the Munchkin cookie is to wrap Munchkin.init() in a condition that checks for another cookie that is only used for opting out (you always must persist something in the browser or else there's no way to remember across pages and sessions). 

Before running init() the very first time, you prompt the user to opt in or out and save that choice to a cookie with a far-distant expiration date. Check the value of that cookie on subsequent page views.

[SanfordWhiteman]

Raj Ruprai curious why you marked as Helpful something that expressly doesn't work...

[Anonymous]

Sanford Whiteman​ I marked it useful because the information provided was helpful to better understand the items that the community has brought up and the feedback provided. If what i deem as helpful is confusing the community i can remove the "helpful", but i did want to provide a way to give feedback that both posts were helpful as we continue to explore options.

[SanfordWhiteman]

You might as well mark every post as Helpful using that logic, though.

[Robert_Kelen3]

I'm wondering has anyone successfully done the reverse (marketo_opt_out=false)? If so, what's the trick. We were able to turn off tracking, but would like the user to be able to opt back in as well.

[SanfordWhiteman]

That doesn't really work because of the cookie domain problem. You can, however, manually set and manually delete the corresponding no-tracking cookie (mkto_opt_out).

[Robert_Kelen3]

Is deleting that cookie something that can be embedded in a link, the same way the initial opting out was (marketo_opt_out=true)? Or does this become a developer-only type challenge?

[SanfordWhiteman]

It requires a small amount of precision JS, yes.