Privacy
This is a static site. It has no accounts, no login, no comment system, and no server that could store anything about you. The pages are files on a CDN.
What the site itself stores
Nothing. The guide sets no cookies of its own and runs no server that could log you. Code you run in a playground is compiled and executed entirely in your browser as WebAssembly: it is never uploaded, and edits you make to a snippet are discarded when you leave the page. The search index is a static JSON file your browser downloads and queries locally, so what you type into the search box is never sent anywhere.
Measurement
The site uses Google Analytics to count how many people read it, which chapters they read, and roughly where in the world they are. It records the page you are on, the link that sent you here, your browser and device type, and a country-level location derived from your IP address. It sets a cookie so that two page loads from the same browser are counted as one visit rather than two. There is no login here and nothing asks for your name or email, so none of this is tied to an identity.
Blocking the domains googletagmanager.com and google-analytics.com, or using a browser that blocks trackers, stops the measurement entirely. Nothing on the site depends on it: every page, playground and search works the same either way.
Advertising
This site may use Google AdSense to display advertisements. Where advertising is enabled, Google and its advertising partners may use cookies and device identifiers to serve and measure ads, and, where Google has a legal basis for it, to personalise them based on your prior visits to this and other sites.
You can turn personalised advertising off at Google Ad Settings. Google explains how it uses data from sites that use its services on its partner sites policy page, and you can opt out of third-party vendor cookies more broadly at aboutads.info. Blocking cookies in your browser also works; the guide itself does not need them.
Third parties the pages contact
Ad requests go to Google's advertising domains, and analytics beacons to Google's measurement domains. Everything else the site needs, including the compiler artifacts and the editor, is served from this domain. Links out to sites like ziglang.org or Codeberg are ordinary links: following one is a visit to that site under its own policy.
Contact
This guide is maintained by Rajesh Pillai. Questions about this page can go to pillai.rajesh@gmail.com, or to the issue tracker if the answer is useful to everyone. The contact page lists every route.