Privacy Policy

Information you give us

The game doesn't need an account, login, deposit or profile, and it never asks for your name, email or payment details. If you email us, we receive your email address and whatever you write. We use that only to reply, and we don't add you to any mailing list.

Browser storage

The game saves a few preferences in your browser's local storage, such as your table theme and whether the strategy coach is on. This information stays on your device, is never sent to us, and can be removed by clearing your browser's site data.

Advertising: Google AdSense

We use Google AdSense to show ads on this site. Google and its partners act as third-party vendors and use cookies to serve ads.

• Google's advertising cookies let Google and its partners serve ads to you based on your visits to this site and/or other sites on the internet.
• You can opt out of personalised advertising by visiting Google's Ads Settings.
• You can also opt out of some third-party vendors' use of cookies for personalised advertising at www.aboutads.info or, in Europe, www.youronlinechoices.eu.
• If you opt out, you may still see ads, but they won't be personalised.

Google explains how it uses information from sites that use its services at How Google uses information from sites or apps that use our services. Where the law requires it (for example in the European Economic Area, the UK and Switzerland), you'll be asked for consent before personalised ads are shown, through a Google-certified consent message.

Analytics

We use Ahrefs Web Analytics to count visits and see which pages are read. It is a privacy-focused tool that doesn't use cookies and doesn't identify individual visitors. It records information such as the page viewed, the referring website, general location (country) and device type. We use Google Search Console to see how the site appears in Google search results. It receives no data from your visit beyond what Google already gets when you search.

Server logs

Like most websites, our hosting provider automatically records basic technical information for every request, such as IP address, browser type, the page requested and the time. These logs are used for security and to keep the site running, and they are deleted on the host's normal schedule.

Fonts and external links

Page fonts are loaded from Google Fonts, which means your browser contacts Google's servers when a page loads. Links to other websites, such as support services, are covered by those sites' own privacy policies.

Children

The site is not directed at children under 16, and we don't knowingly collect personal information from children.

Your rights

Depending on where you live, you may have the right to ask what personal information we hold about you, to correct it or to have it deleted. Because we don't run accounts, the only personal information we normally hold is email you've sent us. Email hello@21blackjack.online with any request and we'll respond within 30 days.

Changes to this policy

We'll update this page if the site's technology, advertising or legal requirements change, and the date at the top will change with it.