Privacy & Cookie Policy
Last updated: 29 September 2026
- You can use SoloBlocks.io without an account and without giving us any personal details.
- Google Analytics only runs if you click Accept in the cookie banner. You can change this any time under Cookie settings.
- If you sign up for block alerts, we use your email address only to send those alerts. Every email has a one-click unsubscribe link.
- We don't sell personal data and we don't use advertising cookies.
- The block data we show (addresses, rewards, coinbase text) is already public on the Bitcoin blockchain.
1. Who is responsible
SoloBlocks.io is run by Mining Hardware Limited, trading as Mineshop.eu (“we”, “us”). We are the data controller for the personal data described in this policy.
Mining Hardware LimitedSuite 223, Blanchardstown Corporate Park 2, Ballycoolin, Dublin 15, D15 CC84, Ireland
Company no. 596721 · VAT IE 3454456JH
Email: [email protected]
2. What we collect and why
Visiting the website
When you open a page, your browser sends technical data to our web server and to our content delivery network, Cloudflare: your IP address, browser and device type, the page you asked for, the page you came from, and the time. We need this to deliver the site, keep it secure (for example against attacks and abusive bots) and fix errors.
Legal basis: our legitimate interest in running a secure, working website (Art. 6(1)(f) GDPR). How long: server logs are kept only for a short time for security and troubleshooting, then deleted automatically when the logs rotate.
Visitor statistics (only with your consent)
If you click Accept in the cookie banner, we use Google Analytics 4 to understand how the site is used: which pages are viewed, how visitors found us, roughly which country and city they are in, and the type of device and browser. Google Analytics sets the cookies listed below and does not store your IP address. We use it only for statistics, not for advertising.
If you don't accept, or you click Reject, nothing is loaded from Google and no analytics cookies are set.
Legal basis: your consent (Art. 6(1)(a) GDPR and the EU cookie rules). You can withdraw it at any time under Cookie settings; we then also delete the analytics cookies. How long: Google keeps the statistics for the retention period set in our account, at most 14 months.
Block alert emails
If you sign up on the Alerts page, we store your email address, a random confirmation and unsubscribe code, when you signed up and confirmed, whether you have unsubscribed, and when we last emailed you. We first send one email asking you to confirm (double opt-in). After you confirm, we email you when a solo miner finds a block. We don't use the address for anything else and don't share it for marketing.
The emails are sent through our email delivery provider, Resend.
Legal basis: your consent (Art. 6(1)(a) GDPR). How long: until you unsubscribe with the link in any alert email. After that we keep the address marked as unsubscribed so we don't email you again; if you want it deleted completely, email us.
Kratos telemetry
Miners running Kratos firmware can send anonymous performance reports to our server. A report contains: a device ID that is hashed on the device before it is sent, the miner model, firmware and Kratos versions, hashrate, temperatures, power use, efficiency, voltage, fan speed, accepted and rejected shares, the tuning preset, the pool's host name and the time. It contains no name, email address or wallet address, and we don't store IP addresses with it.
We use the reports for performance statistics (for example which tuning settings run best) and to improve Kratos.
Legal basis: our legitimate interest in improving Kratos and publishing performance statistics (Art. 6(1)(f) GDPR). How long: as long as the reports are useful for these statistics.
When you email us
If you write to us, we use your email address and message to answer you. Legal basis: our legitimate interest in answering questions (Art. 6(1)(f) GDPR). How long: as long as needed to deal with your question.
Public blockchain data we show
SoloBlocks.io shows data that anyone can already see on the public Bitcoin blockchain: block height and hash, time, reward, the text in the coinbase transaction (often a pool or miner tag) and the payout address. We get it from mempool.space and from public pool statistics. From this we estimate things like a miner's hashrate or device type. We don't try to find out who is behind an address.
Legal basis: our legitimate interest in publishing statistics about solo mining (Art. 6(1)(f) GDPR). If you believe a page shows information about you and you want us to limit it, email us. You have the right to object (see Your rights).
3. Cookies and browser storage
We only set analytics cookies if you accept them. The other items below are stored in your own browser to make the site work the way you asked; they are never sent to us.
| Name | Type | Purpose | How long |
|---|---|---|---|
_ga | Cookie (Google Analytics) | Tells visits apart for statistics. Only with your consent. | 2 years |
_ga_<ID> | Cookie (Google Analytics) | Keeps the state of the current visit. Only with your consent. | 2 years |
sb-consent | Local storage | Remembers your cookie choice, so we don't ask on every page. | 12 months, then we ask again |
sb-theme | Local storage | Remembers light or dark theme, if you chose one. | Until you clear it |
sb-calc | Local storage | Remembers your Calculator setup (miner, number of miners, power price). | Until you clear it |
__cf_bm, cf_clearance | Cookie (Cloudflare) | Security: set only when Cloudflare needs to check that a visitor is not a bot. Strictly necessary. | 30 minutes to 1 year |
Change your choice: click Cookie settings (also at the bottom of every page). You can also delete cookies and site data in your browser settings.
4. Who else receives data
We use a few service providers. They process data only on our behalf or as described here.
| Provider | What for | Data |
|---|---|---|
| Our web hosting provider | Runs the server and database | Everything described above that we store |
| Cloudflare, Inc. | Content delivery and protection against attacks | Technical data of every visit, including IP address |
| Google Ireland Ltd / Google LLC | Google Analytics 4, only after your consent | Usage statistics and the analytics cookies |
| Resend, Inc. | Sends the block alert emails | Your email address and the email content |
Live data loaded by your browser: to show up-to-date numbers, some pages load data straight from other services, which then see your IP address like any website you visit: mempool.space (network hashrate and difficulty on Pool Rankings and the Calculator) and CoinGecko (the Bitcoin price in euros on the Calculator).
Links and share buttons: the X (Twitter) share buttons, app store links, Discord and links to mineshop.eu or other sites are plain links. Nothing is loaded from those services until you click, and after that their own privacy policies apply. Purchases on mineshop.eu are covered by the Mineshop.eu privacy policy.
We don't sell personal data. We only disclose it to authorities if the law requires it.
5. Transfers outside the EU
Cloudflare, Google and Resend are based in, or use servers in, the United States. When they receive personal data there, the transfer is covered by the EU-U.S. Data Privacy Framework or by the European Commission's Standard Contractual Clauses.
6. Your rights
Under the GDPR you have the right to:
- access the personal data we hold about you and get a copy;
- have it corrected if it is wrong, or deleted;
- restrict how we use it, or get it in a portable format;
- object to uses based on our legitimate interests, including the blockchain data we show;
- withdraw consent at any time, without affecting what happened before: Cookie settings for statistics, the unsubscribe link for alerts.
Email [email protected] and we will answer within one month. You can also complain to a data protection authority: in Ireland, where we are based, that is the Data Protection Commission, or the authority in the EU country where you live.
7. Children
SoloBlocks.io is not aimed at children under 16. If you believe a child has signed up for alerts, email us and we will delete the address.
8. Security
The whole site uses encrypted connections (HTTPS). Access to our servers and database is restricted. Unsubscribe links use random codes, and Kratos device IDs are hashed before they leave the device.
9. Changes to this policy
When our data handling changes, we update this page and the date at the top.
10. Contact us
Questions about privacy or your data: [email protected], or write to Mining Hardware Limited, Suite 223, Blanchardstown Corporate Park 2, Ballycoolin, Dublin 15, D15 CC84, Ireland.
See also our Terms of Use.