The __oppref cookie
__oppref is a cookie set by ChatGPT Ads (OpenAI Pixel), from OpenAI. Stores the ChatGPT ad reference (oppref) from the landing page URL, so a later purchase or sign-up on the site can be attributed to the ad.
Duration
30 days
Category
Advertising
Needs consent
Yes
Does the __oppref cookie require consent?
__oppref is used for advertising, so under the GDPR and the ePrivacy rules it may only be set after the visitor has agreed. Showing a banner is not enough on its own: the cookie must not be set before the visitor clicks accept.
Does your site set __oppref before consent?
A free scan loads your site the way a new visitor sees it and lists every cookie that is set before anyone has said yes, __oppref included.
How to put __oppref behind consent
Remove the ChatGPT Ads (OpenAI Pixel) snippet from your site and add your ChatGPT Ads (OpenAI Pixel) ID under Integrations in Consentify instead. Consentify then loads ChatGPT Ads (OpenAI Pixel) only after the visitor has accepted advertising, so __oppref is never set before consent.
View all integrationsNot sure what's running on your ChatGPT Ads (OpenAI Pixel) site?
Scan it first and you'll know exactly which scripts need consent before you set up the banner. Takes about ten seconds.
- Results in about 10 seconds
- No account needed
- Shareable report link