learn.michaelguay.dev is operated by NetTrack LLC, doing business as Michael Guay. This page explains what we collect, why, and who helps us run the site. We don't sell your data, and there are no advertising trackers on the site.
What we collect
- Your email, and your name if you sign in with Google or GitHub or set one in your account: to sign you in, email you about your account, and put your name on your certificates and posts. Your email is never shown to other people.
- Your email, if you ask for updates on a page with lessons that are coming soon: to email you when new lectures or lessons come out. Every such email has an unsubscribe link.
- Your learning progress: which lessons you have watched or finished, and where you stopped in each video, so you can pick up where you left off.
- Your questions and answers in a lesson's Q&A. These are public, shown with your name (or "Member").
- Your chats with the AI assistant: your questions and its answers, saved so you can come back to them, and what each answer cost, to keep to the daily allowance.
- Your membership: which plan you have and when it renews or ends, as Polar tells us. We never see or store your card details.
- Sign-in sessions, with the IP address and browser they came from: to keep your account secure.
- What you search for is used to find results. It is not stored with your account, but the words searched and how many results they found go to our analytics.
- How the site is used: pages visited, where you came from (the referring site or campaign), clicks, your browser, device and approximate location, and what you do as a member (signing up, subscribing, finishing lessons, asking questions). Once you sign in it is tied to your account, so we can see which courses help people and what to make next.
- Video playback data, such as whether a video loaded and played smoothly, and your approximate location from your IP address: so we can keep streaming fast and fix problems.
Cookies
Two, both needed for the site to work: a session cookie that keeps you signed in, and a cookie that remembers whether you chose the light or dark theme. Our analytics keeps a random identifier in your browser's local storage (not a cookie), so that visits from the same browser count as one visitor.
Who helps us run the site
- Polar: payments, receipts and taxes, as the seller of the membership.
- Mux: video hosting and streaming, and playback analytics.
- Mixpanel: usage analytics, as described above. It is used only to understand and improve this site, never for advertising.
- Sentry: error reports, so problems get fixed. When something breaks it receives what went wrong, the page's address (without anything after the "?"), your browser and, if you're signed in, a random account id. Never your name, email, IP address or cookies.
- Mailgun: sending sign-in links, account emails and Q&A notifications.
- Vercel AI Gateway, and the AI model provider it sends each request to: when you use the AI assistant, your question, the rest of that chat and the lesson material go to them to write the answer. Don't put personal or sensitive information in your questions.
- Railway: hosting the site and its database.
- Stripe: if you joined on the original michaelguay.dev site, we look up your existing subscription there by your email, to give you access here.
Reviews shown on the site come from public reviews of the courses on Udemy, with reviewers shown by first name and initial.
Certificates
Each certificate has its own link, and anyone with the link can see it, with your name and the course. It isn't listed in search engines.
How long we keep it
For as long as you have an account. You can delete your AI chats and your Q&A posts yourself at any time. If you ask us to delete your account, we delete your personal data, except what we must keep for tax and accounting (payment records, which Polar holds).
Your choices
You can change the name on your account, and delete your AI chats and posts, yourself. You can also ask for a copy of your data, have it corrected, or have your account deleted: email support@michaelguay.dev from the email on your account.
Changes
If we change how we use your data, we will update this page and say so on the site.