What is the _pinterest_ct_ua cookie?
This cookieis a third party cookie which groups actions for users who cannot be identified by Pinterest.
Our October 2026 scan found it on 12 sites (0% of the 2,450 we scanned), set before any consent.
- Purpose
- Advertising
- Belongs to
- Set as
- Third-party (under another company's domain)
- Typical lifetime
- 12 months (vendor says: session)
Sites that set _pinterest_ct_ua before consent
The highest-ranked 12 of 12 sites.
- verizon.com20 tracking companies
- ford.com17 tracking companies
- starbucks.com5 tracking companies
- intelbras.com.br10 tracking companies
- ning.com10 tracking companies
- hepsiburada.com6 tracking companies
- dish.com18 tracking companies
- teacherspayteachers.com5 tracking companies
- poshmark.com9 tracking companies
- ana.co.jp16 tracking companies
Show 2 more sites
- ebay.com.au7 tracking companies
- washingtontimes.com21 tracking companies
Related cookies
Other cookies from Pinterest.
- _pin_unauth15 sites
How to stop it
Declining non-essential cookies in a site's consent banner should stop _pinterest_ct_ua 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.