Legal

Cookie Policy

The cookies and similar storage QuantumStack uses, what each one does, and how to control them.

Last updated: October 2026

About this policy

This Cookie Policy explains the cookies and similar technologies used on the QuantumStack website and platform, what they do and how you can control them. It sits alongside our Privacy Policy.

What cookies are

Cookies are small text files a website saves in your browser. Local storage is a similar feature that lets a site remember things on your device. In this policy, "cookies" covers both.

How we use them

We don't use advertising cookies, and this website doesn't currently use analytics cookies.

We use a small number of cookies the site needs to work, to remember your choices, and to connect a form you send us to your visit. When you sign in to the QuantumStack platform, cookies also keep you signed in.

Cookies on this website

Name
__vibe_sid
Set by
QuantumStack (website platform)
What it does
Connects forms you send, like a call booking, to your visit so we can follow up properly.
How long
Set by our hosting platform
Name
__cf_bm
Set by
Cloudflare, for the service that hosts our images
What it does
Tells real visitors apart from bots to keep the service secure.
How long
30 minutes
Name
Sign-in cookies
Set by
QuantumStack platform
What it does
Keep you signed in to your account and remember your settings.
How long
While you're signed in

Third-party services

  • Payments: when you open checkout, Stripe, PayPal, Square or GoCardless may set their own cookies for security and fraud prevention, under their own policies.
  • Fonts: our fonts load from Google Fonts, which receives your IP address to deliver them. It doesn't set cookies on this site.
  • Videos: customer videos are streamed from Mux when you play them.
  • Forms: details you send through our forms, such as booking a call, go to our customer-management provider, LeadConnector, so we can reply.

Managing cookies

You can block or delete cookies and local storage in your browser settings. Blocking the cookies the site needs may stop parts of it working, such as checkout or staying signed in.

Changes to this policy

We'll update this policy when we change the cookies we use. The date at the top of this page shows when it was last updated.

Contact us

If you have questions about cookies or this policy, email hello@quantumstack.pro.

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