Privacy

Privacy notice

Last updated: 11 October 2026

In short: this site is a free set of lessons. It has no accounts, no comments, no forms and no ads. It uses analytics services to count visits and measure speed, and it stores one small preference in your browser.

What is collected, and by whom

• Google Tag Manager and Google Analytics. These record which pages are visited, roughly where visitors are (country or city level), the type of device and browser, and how visitors arrive. They may set cookies or similar identifiers in your browser. Google processes this data under its own policies.
• Vercel Analytics and Speed Insights. The site is hosted on Vercel. These tools collect visit counts and page-speed measurements.
• Hosting logs. Like any web host, the hosting provider receives your IP address and basic request details when you load a page, to deliver the page and keep the service secure.

I do not sell personal data, and I do not run advertising on this site.

What is stored in your browser

If you pick an accent colour with the swatch menu, your choice is saved in your browser’s local storage so the site can remember it. It never leaves your device and you can remove it by clearing site data. Analytics services may store their own cookies, as described above.

Search on this site

The search box runs in your browser against a list of lessons and terms that is downloaded with the page. What you type is not sent to a server.

Your choices

• Use your browser’s settings to block or delete cookies and site data.
• Use a content blocker or a browser’s tracking protection to stop analytics scripts from loading. The lessons work without them.
• Google provides an opt-out browser add-on for Google Analytics on its own site.

Children

This site is written for developers and is not directed at young children.

Changes to this notice

If I change the analytics tools or what the site stores, I will update this page and the date above.

Contact

Questions about this notice? Email jainikpatel1743@gmail.com. You can also read about this site and its author.