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Privacy Policy

What happens to your information when you visit rykzo.com, in plain words.

Last updated: November 8, 2026

Who we are

The website rykzo.com is owned and run by ROXSENSES LLC. RYKZO is one of its brands. In this policy, "we" and "us" mean ROXSENSES LLC.

What we collect

This website has no accounts. It asks for your information in eight places: the contact form, our newsletter form, the page where you ask for the American Mahjong Simple Guide, the page where you ask for the Mahjong Tile Tracker, the page where you ask for the American Mahjong Leaderboard, the page where you ask for the Paper Mahjong Tiles, the pages where you ask for the answer sheet of a workbook and the pages where you ask for the certificate of a book.

When you write to us with the contact form, we keep your name, your email and your message. We also keep a coded version of your IP address, which cannot be read back as the address itself. We use it only to stop abuse, such as someone sending many messages in a short time.

We use what you send to answer you, and we keep your name, email and message as long as we need them to answer you and follow up. If you ask us a question about the rules, we may answer it in our newsletter, rewritten without your name, your email or anything else that could show who sent it.

Like every website, the company that hosts it keeps server logs so the site can work and stay secure. Each record shows:

  • your IP address,
  • your browser and device type,
  • the page you asked for and when.

Emails you ask us for

When you ask for the American Mahjong Simple Guide, we keep your email and the year of the edition. We also keep the dates you asked for it and which version of the notice under the form you saw each time. We keep the date of each download of the guide, from the page or from the email. As with the contact form, we keep a coded version of your IP address to stop abuse.

When you ask for the answer sheet of a workbook, we keep your first name, your email and the book. We also keep the dates you asked for it, how many times you asked for it and which version of the notice under the form you saw each time. As with the contact form, we keep a coded version of your IP address to stop abuse.

When you ask for the Mahjong Tile Tracker, we keep the same as for an answer sheet: your first name, your email, the dates you asked for it, how many times you asked for it and which version of the notice under the form you saw each time. As with the contact form, we keep a coded version of your IP address to stop abuse.

When you ask for the American Mahjong Leaderboard, we keep the same as for the Tile Tracker: your first name, your email, the dates you asked for it, how many times you asked for it and which version of the notice under the form you saw each time. We also keep a coded version of your IP address to stop abuse.

When you ask for the Paper Mahjong Tiles, we keep the same as for the Tile Tracker: your first name, your email, the dates you asked for them, how many times you asked for them and which version of the notice under the form you saw each time. We also keep a coded version of your IP address to stop abuse.

When you ask for a certificate, we keep the name to print on it, your email and the book. For the Scorebook we also keep the names of the other players, and for a workbook, your score. We keep the dates you asked for it, how many times you asked for it and which version of the notice under the form you saw each time. As with the contact form, we keep a coded version of your IP address to stop abuse. We don’t keep the certificate itself. We make it again each time you ask for it.

When you sign up for our newsletter, we keep your email and the date you signed up. We also keep which version of the notice under the form you saw and how many times you signed up. As with the contact form, we keep a coded version of your IP address to stop abuse.

We use your email to send you the answer sheet, the Tile Tracker, the American Mahjong Leaderboard, the Paper Mahjong Tiles, the certificate or the link to the guide, and to tell you when the next edition of the guide is out. We also use it to send you our newsletter every week, with new blog posts, a rules question with its answer, a free tool, and sometimes a RYKZO product. We keep which issues of the newsletter we sent you and when.

The download link in the email with the answer sheet, the Tile Tracker, the American Mahjong Leaderboard or the Paper Mahjong Tiles stops working after 30 days. Ask for it again to get a new one.

Resend sends these emails for us.

Every email has a link to unsubscribe. After you unsubscribe, we stop writing to you. If you ask for the guide, an answer sheet, the Tile Tracker, the American Mahjong Leaderboard, the Paper Mahjong Tiles or a certificate again, we send it and you are subscribed again. If you sign up for our newsletter, you are subscribed again too.

When you unsubscribe, we may ask why. If you answer, we save your answer and your note without your email or anything else that could show who you are, so please don’t put personal details in the note.

Cookies

This website does not set cookies of its own. If you came here from a RYKZO ad, it keeps the name of that ad's campaign in your browser. It stays in that tab, and your browser deletes it when you close the tab.

One free tool also keeps something in your browser, on your own device. The Online Tile Tracker keeps the tiles you mark until you start a new game. None of this reaches us.

How we count visits

We count how many people visit each page and how many click a link to Amazon. We do this with Vercel Web Analytics, which uses no cookies and does not tell us who you are.

We also measure how fast each page loads and responds on your phone or computer, so we can find slow pages and fix them. We do this with Vercel Speed Insights. Like Web Analytics, it uses no cookies and does not tell us who you are.

For each visit, Vercel sees:

  • the page you visited,
  • the website you came from,
  • your country,
  • your browser and type of device,
  • how fast your internet connection is.

If you came here from a RYKZO ad, your browser remembers that ad's campaign until you close the tab. When you click a link to Amazon, the link carries the name of that campaign. This lets Amazon tell us which ad led to a purchase.

Links to Amazon

Our products are sold on Amazon. As an Amazon Associate, ROXSENSES LLC earns from qualifying purchases. This means our links to Amazon tell Amazon that you came from our site.

When you click a link to Amazon, you leave this website. On Amazon, Amazon and other third parties may show you content and ads, collect information directly from you, and place or read cookies in your browser. What happens there is covered by Amazon's privacy notice, not by this policy.

Your choices about online advertising

Some companies show ads based on your interests. You can choose not to receive interest-based ads from many of them on these pages:

You can also block or delete cookies in your browser settings.

How we share information

We do not sell your personal information, and we do not share it for advertising.

Two companies keep or send the messages of the contact form for us: Supabase, our database, and Resend, which sends us an email with each message. They use them only to do that work for us.

Vercel hosts this website and counts its visits for us.

If you want us to delete a message you sent, write to us at info@rykzo.com.

Children

This website is not meant for children under 13, and we do not knowingly collect their information.

Changes to this policy

If we change this policy, we will post the new version on this page with its new "Last updated" date.

Contact us

If you have a question about your privacy, write to us at info@rykzo.com.