Cookie Policy

This Cookie Policy explains how yelfvarin (operated by Yelfvarin Education s.r.o.) uses cookies and similar technologies on this website. It supplements our Privacy Policy, which describes how we handle personal data more broadly.

Cookies are small text files stored on your device when you visit a website. They help the site function, remember choices, and—when you allow it—measure usage and support advertising. In addition to cookies, we may use pixel tags (small snippets that send events, such as a page view or a form conversion) and server-side event forwarding when consent has been provided.

Cookies can be session cookies (removed when you close your browser) or persistent cookies (stored for a set period). They can also be first-party (set by our site) or third-party (set by service providers such as analytics or advertising platforms).

We group cookies into the following categories. These categories match the preferences you can manage through our cookie banner and the “Manage cookie preferences” link in the footer.

1) Essential cookies (always active)

Essential cookies are required for the website to function. They support basic features such as session continuity, saving your cookie choices, and security protections. These cookies do not require consent because the site cannot operate reliably without them.

• Remembering cookie preferences so we do not repeatedly ask for consent.
• Keeping the site stable and protecting against fraudulent or malicious requests.
• Maintaining short-lived session continuity as you move between pages.

2) Analytics cookies (optional)

Analytics cookies help us understand how visitors use the site—such as which pages are visited and how long people spend reading. We use these insights to improve clarity, lesson descriptions, and navigation. Analytics cookies are only activated if you opt in.

If enabled, we use Google Analytics 4 (GA4) with IP anonymization where available. Typical retention for analytics data is 14 months.

3) Marketing cookies (optional)

Marketing cookies are used to measure advertising performance and to support relevant advertising on platforms such as Google and Meta. They can help with conversion attribution (for example, understanding whether an ad led to a registration request) and with remarketing audiences. Marketing cookies are only activated if you opt in.

If enabled, you may see advertising that is better aligned with the content of this site (for example, educational materials about e-commerce, product sourcing, or online selling workflows). These cookies do not change course outcomes, and the course remains educational.

The table below lists cookies commonly associated with our categories. Some cookies are set only when a relevant service is active and you have provided consent.

When you opt in to analytics or marketing cookies, certain data (such as cookie identifiers, device/browser information, and usage events) may be processed by third-party providers acting as our service partners. The providers commonly used for these purposes include:

• Google LLC (Google Analytics 4, Google Ads, Google Tag Manager)
• Meta Platforms (Meta Pixel and conversion measurement)
• Cloudflare (CDN and security features, where enabled)

We do not permit these providers to use site data for their own independent commercial purposes. Where these services are enabled, they may place or read their own cookies in accordance with their policies.

You can manage cookie categories at any time by using the “Manage cookie preferences” link in the footer. This opens the cookie preference controls so you can accept or reject analytics and marketing cookies.

You can also control cookies through your browser settings. Most browsers let you delete cookies, block third-party cookies, or block all cookies. If you block essential cookies, parts of the site may not function as intended.

In addition, the following tools may be useful:

• Google Analytics opt-out: https://tools.google.com/dlpage/gaoptout
• Google Ads settings: https://adssettings.google.com
• Meta ad preferences: https://www.facebook.com/adpreferences
• Your Online Choices (EU): https://www.youronlinechoices.eu

We may update this Cookie Policy from time to time to reflect changes in technology, legal requirements, or how we operate the website. When we make material changes, we will update the “Last Updated” date above and may provide additional notice on the site.

If you have questions about cookies or privacy on this site, contact:

• Yelfvarin Education s.r.o.
• Zápasnická 881/4, Hostivař, 102 00 Prague, Czech Republic
• Email: [email protected]