Last updated: February 2026
1. What Are Cookies
Cookies are small text files that are stored on your device when you visit a website. They are widely used to make websites work more efficiently and to provide information to website owners.
This website also uses the browser's localStorage, a similar technology that stores data locally on your device.
2. Cookies Used
The following table describes the cookies and storage technologies used on this website:
| Name | Type | Purpose | Duration | Consent |
|---|---|---|---|---|
| arcoaomeio_cookies | localStorage | Stores your cookie consent preference (level and date of decision) | Persistent (no expiry) | Essential - no consent required |
| _ga | HTTP Cookie | Google Analytics - distinguishes unique users through a randomly generated identifier | 2 years | Requires consent |
| _ga_R4G4W5E9KT | HTTP Cookie | Google Analytics 4 - maintains session state | 2 years | Requires consent |
| _gid | HTTP Cookie | Google Analytics - distinguishes unique users over a 24-hour period | 24 hours | Requires consent |
3. Essential Cookies
The arcoaomeio_cookies key in localStorage is considered essential because it stores your consent decision. Without it, the cookie banner would appear on every visit. This entry does not use traditional HTTP cookies and does not send data to any server - the data remains exclusively in your browser.
The stored value contains only the consent level chosen (all or essential) and the date the decision was made.
4. Analytics Cookies (Google Analytics)
Google Analytics cookies (_ga, _ga_R4G4W5E9KT, _gid) are only placed on your device when you accept analytics cookies through the consent banner. If you decline, the Google Analytics script is not loaded and none of these cookies are created.
These cookies allow us to understand how visitors use the website, including which pages are most visited, how long you stay on the website, and where traffic comes from. The data collected is anonymised and used exclusively for statistical purposes.
5. How to Manage Cookies
You can manage your cookie preferences in several ways:
Consent banner: On your first visit, you can choose to accept or decline analytics cookies. Your preference is saved in localStorage.
Clear browser data: You can delete all cookies and localStorage data through your browser settings. After doing so, the consent banner will appear again on your next visit.
Browser settings: Most browsers allow you to block third-party cookies or all cookies. See your browser's settings:
Google Chrome | Mozilla Firefox | Safari | Microsoft Edge
6. Withdrawing Consent
You can withdraw your consent for analytics cookies at any time. To do so:
1. Open your browser's developer tools (usually with F12).
2. Navigate to the Application tab (Chrome/Edge) or Storage tab (Firefox).
3. Under Local Storage, find the arcoaomeio_cookies entry and delete it.
4. Refresh the page - the consent banner will appear again.
Alternatively, you can clear all website data through your browser's privacy settings.
7. More Information
For more information about how we handle your personal data, please see our Privacy Policy.
If you have questions about the cookies used on this website, contact us at info@arcoaomeio.pt.
You may also consult the Comissão Nacional de Proteção de Dados (CNPD) at www.cnpd.pt for more information about your rights.