: Is there a way to protect against some other site copying your Facebook pixel tracking id and messing up your targeting? A Facebook pixel helps to build a narrow / targeted custom audience

@Murphy175

Posted in: #Advertising #Facebook

A Facebook pixel helps to build a narrow / targeted custom audience focused on people who visited my website (this is really important).

The things is: everyone can see my FB pixel ID on my webpage (it's in the source!).

Now what if someone wants to ruin my custom audience by using this script with my own FB pixel ID on a crappy website that has lots of visitors?

<script>
!function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod?
n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n;
n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0;
t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window,
document,'script','https://connect.facebook.net/en_US/fbevents.js');
fbq('init', '<MYKEY>'); // Insert your pixel ID here.
fbq('track', 'PageView');
</script>


Then my custom audience (using my FB pixel ID) will be "polluted" by lots of visits to the crappy website.

Then any retargetting campaign will be focused on these random visitors (who didn't visit my website but the crappy website). Then I will get a low conversion rate, causing the lost of ads-money.

Is there really no way to protect against this?

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