Browser identifier set by facebook.com. On third-party sites that embed Meta widgets (Like button, comments, Login) it enables Meta to recognise the browser across sessions — a cross-site tracking signal that requires consent.
2 years
Meta Platforms Ireland Ltd.
datr is a social media cookie. Under Art. 5(3) ePrivacy Directive and the GDPR, it must not be set before the visitor has given prior, informed, freely-given consent.
If your scanner finds datr on a page before the visitor interacts with your consent banner, that's a violation — the cookie loaded without a legal basis.
Fix: gate the script that sets this cookie behind your CMP, so it only fires after the relevant consent category is accepted.
Run a free CookieSentry scan to find every cookie set before consent — including datr — and get a downloadable evidence PDF.
Run a free scan →