Cookie Policy
SellerSlice LLC — Mission Control
| Document version | v1.0 |
| Effective date | June 1, 2026 |
| Last updated | June 1, 2026 |
| Owner | SellerSlice LLC privacy team — privacy@sellerslice.com |
| Companion documents | Privacy Policy (v2.0) · Data Retention Policy · Sub-processors · Terms of Service · Legal Hub |
📌 TL;DR — The plain-language version
- What this covers. The cookies and similar device-storage technologies Mission Control uses, and how you control them.
- Essential only by default. The only technologies that run before you choose are the ones strictly required to log you in and remember your settings. Nothing non-essential — including analytics — runs until you say yes.
- Real choices. Our banner offers "Reject all" with the same prominence as "Accept all," plus per-category toggles. You can change your mind any time via Cookie settings in the footer.
- We set no advertising or marketing cookies, and we do not sell or share your data.
- We honor Global Privacy Control — if your browser sends a GPC signal, we treat analytics as declined automatically.
Table of Contents
- What cookies and similar technologies are
- The categories we use
- The full inventory
- How we ask for consent
- How to change or withdraw your choice
- Global Privacy Control and Do Not Track
- How long consent lasts
- Third-party providers
- Changes and contact
1. What cookies and similar technologies are
A cookie is a small text file a website stores on your device. We also use related technologies — local storage, session storage, and SDK identifiers — that read from or write to your device. In this Policy, "cookies" means all of these. Some are first-party (set by Mission Control) and some are third-party (set by a provider we use). They can be session (deleted when you close your browser) or persistent (kept for a set period).
Under the EU ePrivacy Directive (Art. 5(3)), UK PECR, and EDPB Guidelines 2/2023, the rule is triggered by storing or accessing information on your device — so consent is required before any non-essential storage or access, even where no traditional "cookie" is set.
2. The categories we use
| Category | What it does | Runs without consent? |
|---|---|---|
| Strictly Necessary | Logs you in, keeps your session secure, remembers your cookie choice, and enables core functions. The Service cannot work without these. | Yes (exempt) |
| Functional | Remembers preferences such as your light/dark theme. | No — off until you allow it |
| Analytics | Helps us understand performance and usage (page views, Web Vitals) so we can improve the Service. | No — off by default |
| Advertising | Targeted advertising. We do not use this category and set no advertising cookies. | N/A — not used |
3. The full inventory
| Name / pattern | Provider | Purpose | Category | Duration |
|---|---|---|---|---|
sb-<project-ref>-auth-token (and related Supabase auth/session entries) | Supabase (1st-party) | Authentication and session security | Strictly Necessary | Session / refresh-token lifetime |
theme (next-themes) | First-party | Remembers your light/dark/system theme preference | Functional | Persistent |
| Cookie-consent record | First-party | Stores the consent choice you made (so we don't ask repeatedly) | Strictly Necessary (exempt) | Per re-consent period (≈6 months) |
| Vercel Web Analytics + Speed Insights device identifier | Vercel (3rd-party) | Aggregate page-view and Web-Vitals analytics | Analytics (off by default) | Per Vercel's retention |
We set no third-party advertising or marketing cookies.
4. How we ask for consent
When you first visit, we show a consent banner that:
- presents "Accept all" and "Reject all" as options of equal prominence (same size, color, and contrast) on the first layer, alongside "Manage preferences";
- defaults all non-essential categories (Functional, Analytics) to off — no pre-ticked boxes;
- loads analytics and other non-essential technologies only after you opt in; and
- records your choice (the categories you accepted or refused, the banner/policy version, and a timestamp) so we can demonstrate consent.
Strictly Necessary cookies are always on because the Service cannot function without them; you are informed of them but they are exempt from the consent requirement.
5. How to change or withdraw your choice
You can change or withdraw your consent as easily as you gave it, at any time, via the "Cookie settings" link in the site footer (and in your account/portal menu). Withdrawing consent stops the relevant technologies going forward. You can also delete cookies through your browser settings; doing so may sign you out or reset your preferences.
6. Global Privacy Control and Do Not Track
We honor Global Privacy Control (GPC). If your browser or extension sends a GPC signal, we treat it as a valid opt-out of any sale or sharing of personal information and of targeted advertising — and, because we set no advertising cookies, we also treat it as declining the Analytics category by default. You can still affirmatively re-enable analytics in Cookie settings; that explicit choice overrides the GPC default for analytics only (GPC continues to bind sale/sharing). We otherwise do not respond to legacy "Do Not Track" headers, which lack a common standard.
7. How long consent lasts
We ask you to renew your cookie choice approximately every 6 months, and we will re-prompt sooner if this Policy or our cookie use changes materially (the banner will note what changed). We retain the proof-of-consent record for at least 24 months for compliance, separate from the re-prompt cycle — renewing your choice does not erase the proof record.
8. Third-party providers
Some technologies are operated by providers we use to run the Service. Their own privacy practices apply to the data they process:
- Supabase — privacy policy
- Vercel — privacy policy
The complete list of our processors is at /subprocessors.
9. Changes and contact
We maintain a dated version history of this Policy. Questions about cookies: privacy@sellerslice.com. For how we handle personal data generally, see the Privacy Policy.
| Version | Effective | Summary |
|---|---|---|
| v1.0 | 2026-06-01 | Initial Cookie Policy: four-category model, full inventory, equal-prominence reject, GPC honoring, 6-month re-consent, no advertising cookies. |