Updated October 2026

Privacy

This site measures how it’s used so I can make it better. It uses no cookies, shows no ads, and never sells data.

What is measured

  • Pages you view, how long you stay and how far you scroll.
  • Clicks on links and buttons, for example WhatsApp, booking a call or downloading the résumé.
  • Where you came from: the referring site and campaign tags in the link (such as ?dari=instagram).
  • Approximate location (country, region, city), worked out from your network connection.
  • Device type, browser, screen size, language and page speed.

The chat assistant

Questions typed into the “Ask William’s AI” chat, and its answers, are stored so I can see what people want to know and improve the answers. Please don’t type personal information there.

What is not collected

  • No cookies. The measuring tools store nothing in your browser. The site only remembers, for the open tab, which link brought you to the tutoring page (such as ?dari=instagram), so a WhatsApp message can mention it.
  • No names or email addresses, unless you send them to me yourself.
  • IP addresses are not stored. They are used only to count unique visitors per day (with a code that changes daily) and to estimate location, then discarded.

Tools

  • PostHog: visits, clicks and events.
  • Vercel: hosting.
  • Each keeps data only for its standard retention period.

Opting out

Turn on “Do Not Track” or Global Privacy Control in your browser, and none of the measuring tools load on this site.

Questions, or want something removed? Email [email protected].