What is the 6suuid cookie?
A visitor identifier set by 6sense, an account-based marketing platform, used to recognize a visitor's company for targeting and retargeting.
Our October 2026 scan found it on 6 sites (0% of the 2,450 we scanned), set before any consent.
- Purpose
- Advertising
- Belongs to
- 6sense
- Set as
- Third-party (under another company's domain)
- Typical lifetime
- 13 months
Sites that set 6suuid before consent
The highest-ranked 6 of 6 sites.
- trendmicro.com8 tracking companies
- box.com8 tracking companies
- qualtrics.com7 tracking companies
- geocomply.com7 tracking companies
- redis.io12 tracking companies
- island.io17 tracking companies
How to stop it
Declining non-essential cookies in a site's consent banner should stop 6suuid 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 written by CookieTosser, for a cookie the Open Cookie Database doesn't cover.
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.