Privacy and cookie policy
Short version: this site sets no cookies, asks you for nothing and has no user accounts. What you calculate stays in your browser. That is also why you will never see a consent banner here: there is nothing to consent to.
Data controller
Alex de la Fuente — [email protected]. Further details in the legal notice.
Cookies
This site installs no cookies — none of its own, none from third parties, none for advertising, none for cross-site tracking.
Local storage in your browser
It does use localStorage, which is not a cookie: it is never sent to any server and never leaves your device. The following is stored, all of it strictly functional:
idioma_elegido— so you are not offered the other language version again once you have dismissed it.calc_metricas— a local usage counter (how many times you copied the code, how far down you scrolled). It stays in your browser and is not transmitted.- "My fleet" dashboard data — the miners and settings you enter. There is no server: if you clear your browser they are gone, and no copy exists anywhere.
You can delete all of it at any time from your browser's settings ("clear site data").
Analytics
Cloudflare Web Analytics is used to know how many people visit the site and which pages they see. It was chosen precisely because:
- It uses no cookies and no other persistent identifier.
- It collects no personal data and builds no profiles.
- It does not follow anyone across websites or across visits: there is no fingerprinting.
- It does not store IP addresses for analytics purposes.
The data collected is aggregated and anonymous: number of visits, page viewed, approximate country, device and browser type, referring page and load-speed metrics. As this is not personal data, no prior consent is required. More detail on the Cloudflare Web Analytics page.
The tool itself also keeps a few usage counters (how many times you have calculated, how far you scrolled, whether you copied the code) that never leave your browser: they live in localStorage and are not transmitted to any server. They are described in the section above.
Data requested from third parties
To show prices and network status, your browser makes requests directly to CoinGecko and mempool.space. Those requests leave your device, so those services see your IP address the same way any website you visit would. No data about you, and nothing you typed into the calculator, is sent to them. The optional chart loads the Chart.js library from cdnjs, with the same consideration.
Links to GoMining
The buttons on this site lead to gomining.com with a referral code in the URL. That code exists so GoMining knows you came from here and so the bonus is applied to you. No data about you is shared with GoMining from this site. From the moment you leave, GoMining's own privacy policy applies, which is outside this site's control.
Hosting
The site is hosted on Cloudflare Pages. As with any hosting, Cloudflare processes technical server logs (including IP addresses) in order to serve the site and protect it from attack, on the basis of legitimate interest.
Your rights
Since no identifiable personal data is collected, in practice there is no data of yours here to rectify or erase. Even so, you can write to [email protected] to exercise your rights of access, rectification, erasure, restriction, objection and portability. The operator is established in Spain, so the competent supervisory authority is the Spanish Data Protection Agency (AEPD); if you are in another EEA country you may also lodge a complaint with your local authority.
Minors
This site is not directed at minors and does not knowingly collect data from them.
Changes
If this policy changes, the date below will be updated. If the change were substantial (for example, introducing any tool that does use cookies), it would be announced visibly on the site itself.
Last updated: 27 July 2026. Spanish version: Política de privacidad.