Last Updated: October 10, 2026

Cookie Policy

This policy explains how Concolabs uses cookies and tracking technologies to optimize drawing tools and verify your sign-in status.

1. What Are Cookies

Cookies are small text fragments sent to your web browser when visiting web instances. They enable site databases to recognize your browser, save regional settings (such as currency displays), and verify active user sessions.

2. How We Use Cookies

We use cookies and local storage tokens to:

  • Verify your session ID and prevent forgery risks (CSRF).
  • Store your light or dark mode theme selection.
  • Remember your active workspace parameter views and drawing scales.
  • Analyze system performance metrics, network latency, and rendering speeds.

3. Types of Cookies We Use

Our site uses both first-party and third-party cookies:

  • Strictly necessary: Required to sign in, keep your session secure and remember your cookie choice (the concolabs_consent cookie, kept for 180 days). These are always on.
  • Analytics and performance (optional): PostHog (usage analytics and anonymised session recordings), Vercel Analytics and Vercel Speed Insights help us understand how the site is used and how fast it loads. These load only if you accept them.

4. Controlling Preferences

You hold direct authority over how cookies are utilized:

  • Browser Settings: You can edit browser parameters to clear all cookies or warn you before they are saved. Refer to your browser's Help page for details.
  • Cookie Settings: You can accept, reject or customise optional cookies at any time, and withdraw consent as easily as you gave it.

If you have queries regarding our cookie preferences, please contact our support desk: support@concolabs.com