What this site measures, and what it doesn't.
keithchiu.net is the personal website of Keith Chiu, Hong Kong. Questions about this page: hello [at] keithchiu.net.
The site uses Google Analytics 4, loaded through Google Tag Manager, to count visits and understand which pages are read. This includes page views and standard interactions such as scrolling and clicks on outbound links, along with general technical information like device type, browser and approximate location.
There is no advertising: advertising storage, ad personalisation and ad data sharing are switched off for every visitor.
Nothing you type or upload into the Lab tools leaves your browser. The calculations run locally on your device and are not sent to this site, to Google, or anywhere else.
The One-Fix Swing tool downloads a pose-detection model from Google and its code library from jsDelivr when you first use it. Your video is analysed on your device and is never uploaded.
If your browser is set to a European time zone, analytics cookies stay off until you choose Accept in the banner. Until then, and if you choose Reject, Google Analytics only receives cookieless signals, without storing identifiers on your device.
Elsewhere, analytics cookies are on by default. Anyone can change their choice at any time: Cookie settings.
Your choice is remembered in your browser's local storage on this site only. Clearing your browser data resets it.
Google processes analytics data on this site's behalf under its own terms. You can read how Google uses data from sites that use its services at policies.google.com/technologies/partner-sites, and you can opt out of Google Analytics across all sites with Google's browser add-on.