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LEGAL

Cookie policy.
Four cookies, all of them technical.

What each one does, how long it lasts and how to change your mind. Last updated: October 2026.

The short version

This site sets no advertising cookies, no analytics cookies and no cross-site trackers. We do not profile visitors and we do not sell data.

What we do use is the minimum needed for two things to work: the contact form (protected against bots) and the private area (which has to know it is you).

__cf_bm CLOUDFLARE · TECHNICAL · REQUIRED · 30 MIN Tells a person from a bot on the forms. Without it the Turnstile verification cannot run.
cf_clearance CLOUDFLARE · TECHNICAL · REQUIRED · UP TO 1 YEAR Records that the verification was passed, so you are not asked again on every page.
arca_sesion ARCA.INDUSTRIES · TECHNICAL · REQUIRED · SESSION Keeps you signed in to the private area after the email code. It disappears when you close the browser.
arca_cookies ARCA.INDUSTRIES · PREFERENCE · 12 MONTHS Remembers whether you accepted or rejected, so the banner stops asking.

Cloudflare, in plain terms

The contact form and the private area are protected by Cloudflare Turnstile, which replaces the usual puzzle tests. Cloudflare acts as our provider and processes the request from servers in the United States and the European Union, under a data processing agreement.

Turnstile checks the browser, not the person: it does not read your history and does not build a profile of you.

If you reject them

Your choice is respected and the banner will not ask again. But the required cookies above are what make the form and the private area work: rejecting them means the form may refuse to send and the private area will not let you in.

Reading the public site works perfectly well with everything rejected.

Changing your mind

You can clear the cookies from your browser settings at any time, or ask us again for the banner:

YOUR CHOICE This clears the stored preference and brings the banner back, so you can choose again.

How we count visits

We count visits with Umami, running on our own server at stats.arca.industries. It sets no cookies, stores no IP address and builds no profile: we only see aggregate figures — pages viewed, country, device type and the site you came from. Nothing is shared with third parties.

Related

How we handle the data you send us is explained in the privacy policy. Ownership of the site and brand use are in the legal notice.