Cookie Policy
Last updated: 15 September 2026
1. What cookies are
Cookies are small files that a website stores in your browser to save and retrieve information about your visit. This policy also covers similar technologies, such as browser storage (localStorage and sessionStorage) or tracking pixels.
2. Summary: what this site uses
| ArcaUnion cookies | None. |
|---|---|
| Browser storage | None. The site does not use localStorage, sessionStorage or similar technologies. |
| Advertising or cookie-based analytics | None. |
| Cloudflare security cookies | Only when its protection systems require them (section 3). |
| Visitor statistics | Cloudflare Web Analytics, without cookies (section 4). |
Sending the contact form to Web3Forms does not set any cookies in your browser either.
3. Cloudflare security cookies
Cloudflare, the provider that hosts and protects the site, may set strictly necessary technical cookies for security on the arcaunion.com domain when its systems for protecting against attacks and automated traffic require them (for example, to tell a person from a bot). They are not set on every visit, are not used for advertising or to follow you across other sites, and ArcaUnion does not access their content.
| Name | Provider | Purpose | Duration | Type |
|---|---|---|---|---|
| __cf_bm | Cloudflare | Distinguishes human traffic from bot traffic when bot protection is active | 30 minutes from last activity | Technical (security) |
| cf_clearance | Cloudflare | Remembers that the browser has passed a security check, so it is not repeated | 30 minutes (default value) | Technical (security) |
| _cfuvid | Cloudflare | Distinguishes users sharing the same IP address when limiting abusive requests | Session (deleted when the browser is closed) | Technical (security) |
During a security check, Cloudflare may also use short-lived auxiliary cookies whose names begin with cf_chl_. More information is available in Cloudflare's official cookie list.
4. Cookieless statistics: Cloudflare Web Analytics
To know, in aggregate, how many visits the site receives and how it performs, we use Cloudflare Web Analytics. According to Cloudflare, this tool uses no cookies or browser storage, and does not identify or track visitors through their IP address, browser or any other fingerprinting. It only shows us aggregate statistics (page views, referring site, country, browser type and load times).
The related processing of data is explained in the privacy policy.
5. Why there is no cookie banner
Article 22.2 of Spanish Law 34/2002 (LSSI) exempts from consent cookies that are strictly necessary to provide a service requested by the user. The Spanish Data Protection Agency's cookie guide (updated in July 2023) includes technical security cookies, such as those in section 3, among them.
Since the site uses no other cookies and audience measurement is carried out without cookies, without cross-site tracking and solely for statistical purposes on behalf of ArcaUnion, consent is not required and the site does not display a cookie notice or banner. This policy fulfils the duty to provide information about exempt cookies.
6. How to manage or delete cookies
You can allow, block or delete cookies in your browser settings. These are the official help pages:
If you block Cloudflare's cookies, you can still browse the site, although you may be asked to repeat the security check.
7. Changes to this policy
We will update this policy if the cookies used or the law change. The date of the last update appears at the top of the page. If cookies requiring consent were ever added, consent would be requested before setting them.
This is a translation for information purposes. In case of any discrepancy, the Spanish version prevails.