Privacy Policy
Last updated: November 2026
The short version
OpenMahjong is a static content site. We do not require accounts, we do not ask for personal information, and we do not sell data. There is nothing to sign up for.
Analytics
We use privacy-respecting, aggregate analytics (such as Vercel Analytics) to count page views and understand which guides are useful. This data is aggregate and is not used to identify individuals.
Advertising
The site is supported by display advertising. Ad partners (such as Google AdSense or Adsterra) may set cookies or use similar technologies to serve and measure ads, including personalized ads where permitted by law. You can opt out of personalized Google advertising via Google Ad Settings, and control other providers via your browser settings or industry opt-out tools such as aboutads.info.
Your choices
You can browse the entire site with cookies blocked and JavaScript disabled for ads; all content remains fully accessible. To exercise any data rights or ask questions, contact hello@openmahjong.net.
Changes
If this policy changes materially, we will update the date above. Continued use of the site after changes constitutes acceptance.