Privacy

Nothing. Every calculator on this site runs entirely in your browser using JavaScript loaded with the page. The odds, stakes and results you enter are never transmitted, never stored on a server, and never seen by anyone but you.

You can verify this. Load any calculator page, disconnect from the network, and it will continue to work exactly as before, because there is no server-side component to the calculations at all.

This site sets no cookies of any kind — not for analytics, not for advertising, not for preferences. There is no consent banner because there is nothing to consent to.

No third-party analytics, tag managers, advertising pixels, session recorders or social media embeds are loaded on any page. Fonts are served from this site rather than from a font CDN, so no request is made to any external host while you browse.

The "copy result link" button encodes the state of a calculator into the address itself, after the hash symbol. Text after a hash is never sent to a web server by browsers, so even when you share one of these links the figures in it are only read by the recipient's browser.

Some pages link to external organisations, including gambling support services. Those sites have their own privacy practices, and this policy does not extend to them.

Server access logs kept by the hosting provider may record standard request information such as IP address and user agent, as is normal for any website. Those logs are not used to build any profile of visitors and are not combined with anything you enter into a calculator, because nothing you enter is transmitted in the first place.

A calculator has no reason to know who is using it. Once that is accepted, most of the apparatus a modern website carries becomes unnecessary: there is no account system because there is nothing to attach to an account, no analytics because the numbers would not change what gets built, and no consent banner because there is nothing to consent to.

That is a deliberate position rather than an oversight. Betting is a subject where the data people generate is unusually sensitive — what you stake, how often, and on what says a good deal about you, and it is exactly the kind of information that becomes valuable to people you would not choose to share it with. The safest way to hold that data is not to collect it.

It also has a practical benefit you can verify. Because the calculations happen in your browser rather than on a server, the tools keep working with the network disconnected. If a page continues to settle a Lucky 15 with the connection off, nothing it computes is being sent anywhere.

UK data protection law gives you rights over personal data an organisation holds about you, including the right to ask what is held, to have it corrected, and to have it erased. Those rights are straightforward to satisfy here, because no personal data is collected through this site in the first place.

If you contact the site owner directly, that correspondence obviously exists and is kept only as long as needed to deal with what you wrote about. The contact page lists who the site owner is and how to reach them.

If you believe personal data has been handled improperly, you have the right to complain to the Information Commissioner's Office, the UK's independent data protection regulator. You do not need to raise it here first, though it is usually quicker if you do.

This page describes how the site works today. If that ever changes — if analytics are added, or an affiliate tracking link is introduced — the change will be described here and dated rather than absorbed silently into a longer policy.