What is the ttcsid* cookie?
The TikTok cookie ttcsid likely serves as a session identifier, helping to maintain user sessions and track interactions across the platform. Its purpose is probably to manage user authentication or personalize content based on activity, similar to other session-related cookies used by TikTok.
Our October 2026 scan found it on 48 sites (2% of the 2,450 we scanned), set before any consent.
- Purpose
- Advertising
- Belongs to
- TikTok
- Set as
- First-party (under the site's own domain)
- Typical lifetime
- 13 months (vendor says: 1 year) — about what the vendor documents
- Name
- A family of cookies: the part after ttcsid varies by site or account.
Sites that set ttcsid* before consent
The highest-ranked 30 of 48 sites.
- curseforge.com9 tracking companies
- olx.com.br10 tracking companies
- hotpepper.jp13 tracking companies
- jalan.net27 tracking companies
- tenki.jp27 tracking companies
- carsensor.net31 tracking companies
- mechacomic.jp13 tracking companies
- piccoma.com25 tracking companies
- ucsd.edu8 tracking companies
- vice.com14 tracking companies
Show 20 more sites
- earthlink.net10 tracking companies
- colorado.edu8 tracking companies
- suno.com9 tracking companies
- aarp.org30 tracking companies
- utah.edu11 tracking companies
- heylink.me7 tracking companies
- ventraip.net.au8 tracking companies
- goguardian.com8 tracking companies
- brevo.com10 tracking companies
- xero.com18 tracking companies
- mountain.com11 tracking companies
- bybit.com6 tracking companies
- sfu.ca8 tracking companies
- guard.io14 tracking companies
- unep.org10 tracking companies
- tokopedia.com8 tracking companies
- 123rf.com7 tracking companies
- olx.ua9 tracking companies
- acorns.com20 tracking companies
- rochester.edu11 tracking companies
Related cookies
Other cookies from TikTok.
- _ttp55 sites
- _tt_enable_cookie47 sites
- ttwid6 sites
How to stop it
Declining non-essential cookies in a site's consent banner should stop ttcsid* 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.