Cookie Policy
Last updated: 2026-05-08
What are cookies?
Cookies are small text files stored on your device when you visit a website. We also use similar technologies such as localStorage. This policy uses "cookies" to refer to all of them.
The categories we use
Essential
Required for the site to work — sign-in, security (CSRF), and storing your consent choice. These cannot be disabled.
Analytics
Help us understand how the site is used — page views, contest funnels, drop-off points. Includes our own first-party analytics and Google Analytics 4.
Marketing
Used by ad platforms (Google Ads, TikTok) to attribute campaigns and personalize ads. Set only after you accept marketing cookies.
Cookies we set
| Name | Purpose | Duration | Category | Provider |
|---|---|---|---|---|
| tc_consent | Stores your cookie consent choice (which categories you allow). | 1 year | Essential | TierContest |
| __Secure-authjs.session-token / authjs.session-token | Authenticated session for signed-in users. | Session | Essential | TierContest (NextAuth) |
| __Host-authjs.csrf-token / authjs.csrf-token | CSRF protection for sign-in flows. | Session | Essential | TierContest (NextAuth) |
| __Secure-authjs.callback-url / authjs.callback-url | Stores the URL to return to after sign-in. | Session | Essential | TierContest (NextAuth) |
| tc_attr_first / tc_attr_last | Records the first and most recent ad campaign or referrer so we can attribute conversions. | 90 days | Marketing | TierContest |
| tl_sid | First-party analytics session identifier used to deduplicate page views and contest events. | 30 days | Analytics | TierContest |
| _ga, _ga_* | Google Analytics 4 — distinguishes users and measures engagement. | 2 years | Analytics | |
| _gcl_au | Google Ads — links ad clicks to conversions. | 90 days | Marketing | |
| _ttp, _ttclid | TikTok Pixel — attributes ad clicks to actions on the site. | Up to 13 months | Marketing | TikTok |
Managing your choices
You can change your cookie choices any time using the button below or the "Cookie settings" link in the footer.
You can also block or delete cookies directly through your browser settings. Disabling essential cookies will break sign-in and consent storage.
Third parties
Analytics and marketing cookies are set by services we integrate with. Their own privacy policies cover how they use the data:
- Google (Analytics, Ads) — Google Privacy Policy
- TikTok — TikTok EEA Privacy Policy
- OAuth providers (Google, Discord, Twitch) set their own cookies during sign-in.
Changes to this policy
When we add, remove, or materially change cookie categories, we update this page and re-prompt you for consent.
Contact
Questions about cookies? privacy@tiercontest.com