What is the permutive-id cookie?
This ID is the same within a domain (not publisher-specific). The Permutive ID exists in all environments, including 3P cookie-blocked environments like Safari and Firefox. The ID is persistent for a user as long as the local storage isn’t refreshed on the user's device.
Our October 2026 scan found it on 8 sites (0% of the 2,450 we scanned), set before any consent.
- Purpose
- Functional
- Belongs to
- Permutive
- Set as
- First-party (under the site's own domain)
- Typical lifetime
- 6 months (vendor says: 1095 Days) — shorter than the vendor documents
Sites that set permutive-id before consent
The highest-ranked 8 of 8 sites.
- globo.com24 tracking companies
- uol.com.br17 tracking companies
- lanacion.com.ar14 tracking companies
- clarin.com13 tracking companies
- cronista.com9 tracking companies
- kooora.com13 tracking companies
- ctvnews.ca38 tracking companies
- globalnews.ca10 tracking companies
Related cookies
Other cookies from Permutive.
- pxid8 sites
How to stop it
Declining non-essential cookies in a site's consent banner should stop permutive-id 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.