Cookie Policy
Why Mart uses cookies
A cookie is a small value stored by your browser. Mart uses an essential cookie to identify your signed-in session so you can access your account securely. This policy covers mart.dev and its account app. Our Privacy Policy explains how we handle the related personal information.
Browser storage
The live account app uses its session cookie for authentication. Passwords and session tokens are not stored in local storage. Lookup input and results remain in the current page while you use it. Downloaded CSV files are saved to the location you choose on your device.
Signup source
Public pages can pass the referring domain, first Mart page and campaign labels through internal navigation for up to eight hours. This uses temporary page history and internal links, with no attribution cookie, local storage, session storage or persistent visitor identifier. The context is saved to your account when you sign up and can appear in internal Slack alerts. We skip this capture when your browser sends Global Privacy Control or Do Not Track.
Analytics, advertising, and checkout
The Mart site currently loads no advertising or third-party analytics scripts. Optional tracking will require an updated policy and applicable consent controls before it is introduced. When you open Stripe’s hosted checkout or customer portal, Stripe may use its own cookies for payment, security, and fraud prevention. Those pages are covered by Stripe’s Cookie Policy.
Your controls
You can delete or block cookies in your browser settings. Deleting the sign-in cookie signs you out; blocking it prevents the account app from working. Browser controls apply separately on each browser and device. Questions about cookies or storage can be sent to support@mart.dev.
Date Last Reviewed: September 23, 2026