What is the RT cookie?
This cookie is used to identify the visitor through an application. This allows the visitor to login to a website through their LinkedIn application for example.
Our October 2026 scan found it on 92 sites (4% of the 2,450 we scanned), set before any consent.
- Purpose
- Functional
- Belongs to
- Tripadvisor
- Set as
- First-party on 90% of sites, third-party on 10%
- Typical lifetime
- 7 days (vendor says: 399 days) — shorter than the vendor documents
Sites that set RT before consent
The highest-ranked 30 of 92 sites.
- samsung.com4 tracking companies
- webex.com4 tracking companies
- oracle.com2 tracking companies
- cisco.com2 tracking companies
- avast.com5 tracking companies
- dell.com12 tracking companies
- mi.com2 tracking companies
- washingtonpost.com12 tracking companies
- paloaltonetworks.com2 tracking companies
- mcafee.com0 tracking companies
Show 20 more sites
- mdpi.com1 tracking company
- nike.com1 tracking company
- linode.com1 tracking company
- viber.com3 tracking companies
- asus.com1 tracking company
- mailchimp.com4 tracking companies
- mckinsey.com0 tracking companies
- lenovo.com1 tracking company
- infobae.com6 tracking companies
- instructure.com17 tracking companies
- amd.com1 tracking company
- lanacion.com.ar14 tracking companies
- canada.ca1 tracking company
- dw.com0 tracking companies
- lecturas.com5 tracking companies
- choiceadvantage.com0 tracking companies
- norton.com1 tracking company
- bls.gov4 tracking companies
- earthlink.net10 tracking companies
- hpe.com10 tracking companies
Related cookies
Other cookies from Tripadvisor.
- tt10 sites
How to stop it
Declining non-essential cookies in a site's consent banner should stop RT 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.