# Cookie Policy

## I. Introduction

This Cookie Policy explains how RevTec ("RevTec," "we," "us," or "our") uses cookies and similar technologies when you visit [www.revtec.fi](http://www.revtec.fi) and any other website or interface operated by RevTec (collectively, the "Site"). It explains what these technologies are, why we use them, and your rights with respect to them.

RevTec is incorporated in Austria and this Cookie Policy is designed to comply with applicable EU and Austrian law, including the General Data Protection Regulation (GDPR) and the Austrian Telecommunications Act (TKG). For more details on how we process your personal data more broadly, please see our Privacy Policy.

We may update this Cookie Policy from time to time. If we make changes, we will update the "Last updated" date above. We encourage you to review this policy periodically.

## II. What Are Cookies?

Cookies are small data files placed on your computer or mobile device when you visit a website. They are widely used to make websites function correctly, work more efficiently, and provide useful information to the website operator.

First-party cookies are set directly by RevTec. Third-party cookies are set by parties other than RevTec to provide features or functionality through the Site.

We may also use similar technologies such as local storage — a browser-based mechanism that stores small amounts of data locally on your device. Like cookies, local storage may be used to remember your preferences (such as your wallet connector selection). Local storage data is not transmitted to our servers automatically and is controlled entirely by your browser settings.

## III. What Cookies Do We Use?

RevTec operates a minimal cookie footprint. We do not use advertising cookies, tracking pixels, or analytics cookies. We do not share your browsing data with third-party advertisers. The only cookies and similar technologies we use are those strictly necessary for the Site to function, and a small number of functional cookies that improve your experience.

The table below lists the cookies currently in use on the Site:<br>

| Cookie Name               | Category           | Purpose                                                                                                              | Provider             | Retention                          |
| ------------------------- | ------------------ | -------------------------------------------------------------------------------------------------------------------- | -------------------- | ---------------------------------- |
| session\_id / \_\_session | Strictly necessary | Maintains your session while navigating the site. Required for the site to function.                                 | RevTec (first party) | Session (deleted on browser close) |
| csrf\_token               | Strictly necessary | Protects against cross-site request forgery attacks. Required for security.                                          | RevTec (first party) | Session                            |
| wallet\_preference        | Functional         | Remembers which wallet connector you last used (e.g. Phantom, Solflare) to improve your experience on return visits. | RevTec (first party) | 30 days                            |

\
Note: Wallet connector software (such as Phantom, Solflare, or Backpack) operates as a browser extension installed on your own device. These extensions may store data locally within your browser environment, but this is governed by each extension's own privacy policy — RevTec does not set, read, or control any data stored by wallet extensions.

## IV. Legal Basis for Using Cookies (EU/Austrian Users)

Under EU and Austrian law, we rely on the following legal bases for our use of cookies and similar technologies:

* Strictly necessary cookies: No consent is required. These cookies are essential for the Site to function and cannot be switched off. They do not store any personally identifiable information.
* Functional cookies: We rely on our legitimate interest in providing you with a better experience (e.g. remembering your wallet preference). You may disable these via your browser settings without affecting your ability to use the Site.

We do not use any cookies that require your prior consent under the ePrivacy Directive (i.e. we set no advertising or analytics cookies). As a result, we do not display a consent banner for cookie purposes — however, if our cookie use changes in the future, we will implement appropriate consent mechanisms before doing so.

## V. Your Rights and Controls

You have the following options for controlling cookies and similar technologies:

### Browser settings

Most web browsers allow you to control cookies through their settings. You can typically:

* Delete all cookies already stored on your device.
* Block all cookies from being set.
* Allow only first-party cookies (blocking third-party cookies).
* Set your browser to notify you when a cookie is being set.

Instructions for managing cookies in common browsers can be found at: [www.aboutcookies.org](http://www.aboutcookies.org). Please note that disabling strictly necessary cookies will prevent the Site from functioning correctly.

### Local storage

Local storage data can be cleared via your browser's developer tools or privacy settings. In most browsers this is found under Settings > Privacy > Clear browsing data > Cached images and files / Site data.

### Your data rights

If you are located in the EU or Austria, you have rights under the GDPR in relation to any personal data we process, including the right to access, rectify, erase, or object to processing. To exercise these rights or for any questions about this Cookie Policy, please contact us at:

RevTec / H2O Nodes

Email: <max@h2o-nodes.com>

Website: [www.revtec.fi](http://www.revtec.fi)

You also have the right to lodge a complaint with the Austrian Data Protection Authority (Datenschutzbehörde): [www.dsb.gv.at](http://www.dsb.gv.at).

## VI. Changes to This Policy

We may update this Cookie Policy from time to time to reflect changes in our use of cookies, applicable law, or for other operational reasons. When we do, we will update the "Last updated" date at the top of this document. If we introduce any cookies that require consent, we will implement an appropriate consent mechanism at that time. We encourage you to review this policy periodically.

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