Cookie Policy
Last Updated: 1st January 2026
1. What Are Cookies?
Cookies are small text files that are placed on your device (computer, smartphone, or tablet) when you visit a website. They are widely used to make websites work more efficiently and to provide information to website owners about how users interact with their sites.
Cookies contain information about your browsing activity and preferences. They can remember your settings, keep you logged in, and help personalise your experience on our platform.
This Cookie Policy explains how QuantumHarbor B.V. ("we", "us", "our") uses cookies and similar tracking technologies on our marketplace platform and website.
2. Why We Use Cookies
We use cookies for several important purposes that help us provide and improve our services:
Essential Functionality
- Keep you logged in to your account as you navigate our platform
- Remember your shopping cart contents
- Ensure website security and prevent fraud
- Remember your cookie consent preferences
Performance and Analytics
- Understand how visitors use our website
- Identify and fix technical issues
- Measure the effectiveness of our services
- Improve website performance and user experience
Personalisation and Marketing
- Personalise content and product recommendations
- Remember your preferences and settings
- Deliver relevant advertisements
- Measure advertising campaign effectiveness
3. Types of Cookies We Use
We categorise cookies based on their function and the control you have over them:
Necessary Cookies
These cookies are essential for our website to function properly. They enable basic features like page navigation, access to secure areas, and form submissions. The website cannot function properly without these cookies, so they cannot be disabled.
Analytics Cookies
These cookies help us understand how visitors interact with our website by collecting and reporting information anonymously. We use this data to improve our website's performance and user experience. These cookies are provided by Google Analytics.
Functional Cookies
These cookies enable enhanced functionality and personalisation. They may be set by us or by third-party providers whose services we use. They remember your preferences such as language settings, region, and customisation options.
Marketing Cookies
These cookies track your browsing activity to deliver advertisements that are relevant to you and your interests. They also help measure the effectiveness of advertising campaigns. We use Google Ads and other advertising platforms that may set these cookies.
4. Specific Cookies We Use
The following table provides details about the specific cookies used on our platform:
| Cookie Name | Purpose | Duration | Type |
|---|---|---|---|
| cookie_consent | Stores your cookie consent preferences | 1 year | Necessary |
| session_id | Maintains your login session | Session | Necessary |
| _ga | Google Analytics - distinguishes users | 2 years | Analytics |
| _gid | Google Analytics - distinguishes users | 24 hours | Analytics |
| _gcl_au | Google Ads - conversion tracking | 90 days | Marketing |
| _gcl_aw | Google Ads - conversion tracking | 90 days | Marketing |
| IDE | Google DoubleClick - ad targeting | 1 year | Marketing |
| user_preferences | Stores language and region settings | 1 year | Functional |
5. Third-Party Cookies
Some cookies on our website are set by third-party services that we use to enhance our platform's functionality and performance:
Google Analytics
We use Google Analytics to understand how visitors use our website. This service sets cookies to collect information about your visit, including pages viewed, time spent, and how you arrived at our site. This information is used to compile reports and help us improve our website.
Google Ads
We use Google Ads for advertising and remarketing. These cookies help us show relevant advertisements to users who have visited our website and measure the effectiveness of our advertising campaigns.
Google Fonts
We use Google Fonts to display custom fonts on our website. Google may set cookies to optimise font loading and performance. These are considered functional cookies as they improve the visual presentation of our content.
6. Managing Your Cookie Preferences
You have several options for managing cookies on our website:
Cookie Consent Banner
When you first visit our website, you'll see a cookie consent banner that allows you to accept all cookies, reject non-essential cookies, or customise your preferences. You can access these preferences at any time by clicking the cookie settings link in our website footer.
Browser Settings
You can also manage cookies through your browser settings. Most browsers allow you to:
- View and delete cookies
- Block cookies from specific websites
- Block third-party cookies
- Delete all cookies when you close your browser
- Set your browser to notify you when cookies are being set
Third-Party Opt-Out
For Google Analytics and Google Ads cookies, you can opt out by visiting Google's privacy controls or by installing the Google Analytics Opt-out Browser Add-on.
7. Google Consent Mode v2
We implement Google Consent Mode v2, which allows us to respect your cookie preferences while still providing basic functionality. This technology adjusts how Google Analytics and Google Ads behave based on your consent choices.
When you decline marketing or analytics cookies, Google Consent Mode ensures that these services operate in a privacy-friendly manner, collecting only essential information needed for basic functionality whilst respecting your preferences.
This approach allows us to maintain website functionality and measure basic performance metrics whilst honouring your privacy choices and complying with European privacy regulations.
8. Impact of Disabling Cookies
Whilst you can disable cookies, please be aware that this may affect your experience on our website:
Disabling Necessary Cookies
If you disable necessary cookies, some features of our website may not work properly. You may experience issues with logging in, maintaining your session, or using certain platform features.
Disabling Analytics Cookies
Disabling analytics cookies will not affect your browsing experience, but it will prevent us from understanding how you use our website, which may limit our ability to improve our services.
Disabling Marketing Cookies
Disabling marketing cookies will not prevent you from seeing advertisements, but the ads you see may be less relevant to your interests. It will also prevent us from measuring the effectiveness of our advertising campaigns.
9. Updates to This Policy
We may update this Cookie Policy from time to time to reflect changes in our use of cookies, new technologies, or legal requirements. When we make significant changes, we will notify you by posting the updated policy on our website.
We recommend that you review this Cookie Policy periodically to stay informed about our use of cookies and related technologies.
10. Contact Us
If you have any questions about our use of cookies or this Cookie Policy, please contact us:
Company: QuantumHarbor B.V.
Address: Hoofdstraat 226, 9787 GJ Groningen, Netherlands
Privacy Email: privacy@quantumharbor.world
General Contact: contact@quantumharbor.world
Phone: +31 503269071
For more information about our data processing practices, please see our Privacy Policy.