What is the _fbp cookie?
Used by Facebook to deliver a series of advertisement products such as real time bidding from third party advertisers.
Our October 2026 scan found it on 195 sites (8% of the 2,450 we scanned), set before any consent.
- Purpose
- Advertising
- Belongs to
- Set as
- First-party (under the site's own domain)
- Typical lifetime
- 3 months (vendor says: 4 months) — shorter than the vendor documents
Sites that set _fbp before consent
The highest-ranked 30 of 195 sites.
- harvard.edu4 tracking companies
- dell.com12 tracking companies
- media.net6 tracking companies
- globo.com24 tracking companies
- mediatek.com7 tracking companies
- techcrunch.com38 tracking companies
- optimizely.com4 tracking companies
- oxylabs.io11 tracking companies
- shopee.co.id3 tracking companies
- fiverr.com7 tracking companies
Show 20 more sites
- prnewswire.com13 tracking companies
- liftoff.io6 tracking companies
- usps.com24 tracking companies
- pexels.com4 tracking companies
- worldbank.org9 tracking companies
- washington.edu12 tracking companies
- character.ai5 tracking companies
- shopee.ph3 tracking companies
- infobae.com6 tracking companies
- olx.com.br10 tracking companies
- bidmachine.io13 tracking companies
- instructure.com17 tracking companies
- tabelog.com6 tracking companies
- lanacion.com.ar14 tracking companies
- hotpepper.jp13 tracking companies
- clarin.com13 tracking companies
- itmedia.co.jp9 tracking companies
- litnet.com9 tracking companies
- psu.edu4 tracking companies
- jstor.org2 tracking companies
How to stop it
Declining non-essential cookies in a site's consent banner should stop _fbp being set on later visits. Blocking third-party cookies in your browser settings stops the third-party kind everywhere, and clearing cookies for a site removes any it already set.
Description from the Open Cookie Database (Apache 2.0).
Understanding this page
- How cookie lifetimes work, and why a 13-month _ga matters
What a cookie's "expires" field actually controls, why Google Analytics ships a 2-year default that many sites cut down to 13 months, and how Safari's 7-day cap on script-set cookies changes the picture.
- First-party vs third-party cookies (and why "first-party" still tracks you)
What the distinction actually means technically, why browsers only block one of the two, and how CNAME cloaking, server-side tagging and cookies like _ga let sites keep tracking under their own domain.
- How to block or limit trackers
Browser privacy settings, content blockers, Global Privacy Control and clearing cookies compared honestly — what each one actually stops, what it doesn't, and what it costs you in return.